CN103711460B - Deepwater pipelines multiloop cross-over connection system and test mounting method thereof - Google Patents

Abstract

The invention discloses a deep-water pipeline multi-circuit bridging system and its testing and installation methods. A deep-water pipeline multi-circuit bridging system includes a subsea manifold, an underwater electrical distribution assembly, a first underwater Christmas tree, a second Subsea oil tree, the first subsea umbilical cable terminal and the second subsea umbilical cable terminal are six devices, and the six devices are connected by hydraulic jumpers and water injection and gas injection pipelines. The hydraulic jumper includes male joint terminals and Cooperating female joint terminals; a method for testing and installing a multi-circuit jumper system for deep-water pipelines, including a leak test and a flushing test for the male joint terminal and the female joint terminal. After the test is completed, the water injection pipeline and the hydraulic crossover The wiring is moved underwater, and the ROV operation installs the two separately between the underwater equipment. The invention can realize rapid connection and disconnection between underwater equipment, ensure that all key parts and moving parts can be recovered, and ensure the safety and reliability of the ROV in the docking and connecting stages.

Description

Deepwater pipeline multi-circuit jumper system and its test installation method

technical field

The invention relates to the technical field of offshore oil and gas exploitation, in particular to a deep-water pipeline multi-circuit bridging system for connecting oil and gas drilling and production manifolds and its testing and installation methods.

Background technique

In hydraulic pipelines or water pipelines, it is often encountered that the pipelines are connected. In the process of connecting or disconnecting the pipeline, how to ensure the sealing degree of the pipeline and optimize the connection method of the connecting joint is a technical problem. Especially in the marine environment, the technical difficulty of drilling and producing oil in the ocean is much greater than that of drilling and producing oil on land. In order to adapt to the specific working environment of the ocean, there are corresponding technical requirements for the supporting oil drilling equipment, and the most basic technical requirement is that no leakage is allowed. Many oil pipes are used in the process of oil exploration and transportation. The arrangement of the oil pipes is intricate, and generally the length is long, and there are many bends. Therefore, the connection between the oil pipes needs to be connected by joints to reduce the length of the oil pipes. and floor space, the connection joint must have high sealing and pressure resistance, and it is best to achieve quick connection. Nowadays, most of the oil pipe joints use double-ended thread or flange connection. When the oil pipes are connected to each other Or special tools are required to rotate the oil pipe during disassembly, which is time-consuming and laborious for the operator. At the same time, the double-start thread requires a high degree of cooperation when connecting, which not only reduces work efficiency, but also increases cost and affects work progress.

Existing quick connectors are generally used for hose connections, and generally include a male connector and a female connector. When in use, the male connector and the female connector can be docked, but generally the male connector and the female connector can only be connected to the pipeline. into the fluid. Before the male joint and the female joint are butted, because the male joint or the female joint cannot bear pressure, the pipeline cannot pass fluid. In addition, in the existing quick connectors, the internal structure of the male connector and the female connector is relatively complicated. In the case of a complex structure, it is difficult to guarantee the sealing performance, especially in the high-pressure environment such as the marine field, when the male connector and the female connector are docked. The operation of connecting the inner channels of the male connector and the female connector is cumbersome and the connecting speed is slow. The sealing effect of the existing quick connector is not good, which easily causes fluid leakage.

At the same time, in the field of offshore oil and gas production, two underwater devices (such as Christmas trees and manifolds) are usually connected by jumpers. The traditional jumper structure is relatively complicated, and it is inconvenient to connect with trees or manifolds. It is not convenient for ROV operation, the connection efficiency is low, and the sealing performance cannot be guaranteed.

The disadvantages of the existing technology are: the existing quick-installation joints cannot take into account the effect of instant cut-off and fast clamping, and the clamping method is relatively traditional, and threaded connection is mostly used, and specific tools are required for disassembly or connection. It is very troublesome to operate, which makes the operator time-consuming and laborious, and the pipeline cannot be connected in time and quickly during the operation process. At the same time, the structure is relatively complicated and there are many components, so that the sealing performance cannot be guaranteed, and the existing jumper wire , The connection is cumbersome and the operation is inconvenient.

Contents of the invention

The object of the present invention is to provide a deep-water pipeline multi-circuit bridging system and its testing and installation methods, which can be quickly connected and separated to realize fast on-off, and are suitable for marine deep-water environments.

In order to achieve the above object, the technical solution of the present invention is as follows: a deepwater pipeline multi-circuit bridging system, comprising a subsea manifold, an underwater electrical distribution assembly, a first underwater Christmas tree, a second underwater Christmas tree, a first The underwater umbilical cable terminal and the second underwater umbilical cable terminal have six devices, the submarine manifold is provided with at least four male joint terminals, and the underwater electrical distribution assembly is provided with at least three male joint terminals, At least two male joints and one subsea umbilical cable interface, at least two male joint terminals and at least one male joint are provided on the first subsea tree, and at least two male joint terminals are provided on the second subsea tree. A male connector terminal and at least one male connector, the first underwater umbilical cable terminal is provided with at least two male connector terminals, at least one male connector and an umbilical cable interface in the oil field, and the second underwater umbilical cable terminal is provided with Provided with at least one male connector terminal, at least one male connector, and an umbilical cable interface in the oilfield;

One of the male joint terminals of the first subsea oil tree is connected to one of the male joint terminals of the subsea manifold through a hydraulic jumper, and one of the male joint terminals of the first subsea oil tree is connected to the subsea manifold. One of the male connector terminals of the electrical distribution assembly is connected through a hydraulic jumper, and one of the male connectors of the first subsea tree and one of the male connectors of the subsea electrical distribution assembly are connected through a water injection Injection line connection;

The underwater umbilical cable interface of the underwater electrical distribution assembly is connected to the underwater umbilical cable, and one of the male joint terminals of the underwater electrical distribution assembly and one of the male joint terminals of the submarine manifold are connected by a Hydraulic jumper connection, one of the male connector terminals of the subsea electrical distribution assembly and one of the male connector terminals of the first subsea umbilical cable terminal are connected through a hydraulic jumper wire, one of the subsea electrical distribution assemblies The male joint is connected to one of the male joints at the terminal of the first underwater umbilical cable through a water injection and gas injection pipeline;

One of the male joint terminals of the first underwater umbilical cable terminal is connected to one of the male joint terminal terminals of the subsea manifold through a hydraulic jumper, and the oilfield umbilical cable interface of the first underwater umbilical cable terminal is connected to the The oilfield umbilical interface of the second underwater umbilical cable terminal is connected through the oilfield umbilical cable;

One of the male joint terminals of the second subsea umbilical cable terminal is connected to one of the male joint terminal terminals of the second subsea oil tree through a hydraulic jumper, and one of the male joint terminal terminals of the second underwater umbilical cable The joint is connected to one of the male joints of the second subsea oil tree through a water injection gas injection pipeline; between one of the male joint terminals of the second subsea oil tree and one of the male joint terminals of the subsea manifold Connection is via a hydraulic jumper wire.

With the above structure, the male connector terminal of one device is connected to the male connector terminal of the other device through a hydraulic jumper, and the male connector of one device is connected to the male connector of the other device through a water injection and gas injection pipeline. It only needs to go through the hydraulic jumper or the water injection and gas injection pipeline to realize fast connection or communication, which is convenient to operate and short in operation time.

Four male joint terminals and four docking joints are installed on the submarine manifold, and each of the docking joints is close to each male joint terminal, and the underwater electrical distribution assembly is equipped with three male joint terminals, one A docking joint and two male joints, two male joint terminals, a docking joint and a male joint are installed on the first subsea tree, and two male joint terminals are installed on the second subsea tree. A docking joint and a male joint, two male joint terminals and a male joint are installed on the first underwater umbilical cable terminal, a male joint terminal and a docking joint are installed on the second underwater umbilical cable terminal and a male connector, the docking connectors are of the same terminal structure as the male connectors, and each of the docking connectors is covered with a long-term cover;

The water injection and gas injection pipeline includes a connecting pipeline, two ends of the connecting pipeline are respectively connected with a female joint, the female joint at one end of the connecting pipeline is connected with a male joint of one of the equipment, and the female joint at the other end of the connecting pipeline is connected with the other One male connection of one device.

Set up the docking joint. When the hydraulic jumper is put underwater, it is convenient for the hydraulic jumper to dock on the docking joint for a short time. The docking joint can also be used as a spare connection interface. It can be used when needed. The two ends of the connecting pipeline are respectively connected to a female The female connector is connected to the male connector and locked by a locking mechanism.

The hydraulic jumper includes a hydraulic pipeline, and the two ends of the hydraulic pipeline are respectively connected with a female joint terminal. the terminal is connected to a male connector terminal of another device;

The male joint terminal includes a first mounting plate, which is connected to the device, and the first mounting plate is equipped with a male joint, a male guiding element and a male guiding locking element, and the female joint terminal includes a second A mounting plate, a female joint, a female guiding element and a female guiding locking element are installed on the second mounting plate, the second mounting plate is arranged opposite to the first mounting plate, the female guiding element is connected with the male guiding element, and the The second adapter of the female joint is connected to the end of the hydraulic pipeline. The front part of the female joint is sleeved outside the rear part of the male joint, and is in communication with the male joint. The female guiding locking element is connected to the male guiding locking element , to lock the second mounting plate and the first mounting plate.

With the above structure, the male joint, the male guiding element and the male guiding locking element are installed on the first mounting plate, the female joint, the female guiding element and the female guiding locking element are installed on the second mounting plate, and the female joint and the male joint can be corresponding There are multiple sets of male and female connectors of different sizes that can be matched. The second mounting plate is facing the first mounting plate. When the male connector terminal and the female connector terminal are docked, the female guide element and the male guide element Guided connection, the female joint is set on the male joint, that is, the male joint extends into the female joint, and the female joint and the male joint are connected by top pressure to realize the connection of the deep-water multi-circuit connection terminal. , lock between the second mounting plate and the first mounting plate, when it is necessary to disconnect the connection terminal, loosen between the female guiding locking element and the male guiding locking element, separate the female joint from the male joint, and the female guiding The component and the male guide component can be separated. Since the male connector and the female connector are plug-in type, that is, they can be connected by mutual pressure, and they are cut off after separation, which can realize fast docking and separation, and realize fast on-off and operation. Convenient, the female connector terminal is usually fixed on the underwater equipment, such as Christmas trees, manifolds, etc. When connection is required, the female connector terminal is connected to the male connector terminal by ROV (underwater robot).

Both the first mounting plate and the second mounting plate are arranged vertically, the male connector, the male guiding element and the male guiding locking element are installed horizontally on the first mounting plate and face the second mounting plate, the The female joint, the female guiding element and the female guiding and blocking element are horizontally installed on the second mounting plate, and the female joint, the female guiding element and the female guiding and blocking element are facing the first mounting plate, and are respectively connected with the male joint, the male guiding element and the Male guiding locking element docking;

Both the male joint and the female joint are provided with a fluid channel along the axial direction, a first stop spring valve core is arranged in the fluid channel of the male joint, and a second stop spring valve is arranged in the fluid channel of the female joint core, the connecting sleeve of the female joint is sleeved on the first adapter of the male joint, the second valve stem of the second stop spring spool is set opposite to the first valve stem of the first stop spring spool, The rear end of the first valve stem and the front end of the second valve stem press against each other, so that the fluid channels of the male joint and the female joint are connected, and the second adapter of the female joint at the terminal end of the female joint is connected to one end of the hydraulic pipeline. The second adapter of the female joint of the water injection and gas injection pipeline is connected to one end of the connecting pipeline;

With the above structure, the first stop spring spool is used to control the cutoff or conduction of the fluid channel of the male joint, and the second stop spring spool is used to control the cutoff or conduction of the fluid channel of the female joint. At this time, the rear part of the male joint extends into the front part of the female joint, and the first valve stem of the first stop spring spool and the second valve stem of the second stop spring spool press against each other, so that the male joint and the female joint The fluid passages of the male joint and the female joint are connected respectively, and the fluid channels of the male joint and the female joint are connected. After the male joint is removed, the first flow-stop spring spool and the second flow-stop spring spool cut off the fluid passages of the male joint and the female joint respectively, realizing fast docking and separation, and convenient operation.

The male guide element includes a main guide bolt, a secondary guide bolt and a guide funnel, the main guide bolt is located on the top of the first mounting plate, and there are two secondary guide bolts located on both sides of the lower part of the first mounting plate. The guide funnel is connected to the edge of the first mounting plate, the male joint, the main guide bolt and the secondary guide bolt are all located in the guide funnel, the small-diameter end of the guide funnel is connected to the first mounting plate, and the large-diameter end faces the second On the mounting plate, the female guide element includes a main guide bolt insertion hole and a secondary guide bolt insertion hole opened on the second mounting plate, and the main guide bolt insertion hole and the secondary guide bolt insertion hole are respectively connected to the main guide bolt. Cooperating with the auxiliary guide bolts, the main guide bolts extend into the main guide bolt sockets, and the secondary guide bolts extend into the secondary guide bolt sockets;

The male guiding locking element is a male guiding locking bolt installed in the center of the first mounting plate, the male guiding locking bolt faces the second mounting plate, the female guiding locking element has a cylindrical structure, and the female guiding locking element passes through It is arranged in the central hole opened by the second mounting plate, and can rotate in the central hole, and the two ends of the female guide locking element protrude from the second mounting plate, and the female guiding locking element faces the first One end of the mounting plate is provided with a screw hole matched with the male guiding locking bolt, and the male guiding locking bolt extends into the screw hole, and the end of the female guiding locking element away from the first mounting plate is provided with an ROV torsion interface. The outer wall of the guide locking element is provided with a circle of limiting bosses, which abut against the end surface of the second mounting plate away from the end of the first mounting plate, and clamp between the second mounting plate and the first mounting plate;

A surface support plate and an ROV operation bucket are set on the female locking element, the surface support plate and the ROV operation bucket are close to the ROV twist interface, the bottom of the ROV operation bucket faces the second installation plate, and the surface support The plate is connected to the bottom of the ROV bucket through cap bolts, the ROV twist interface extends into the cavity of the ROV bucket, and a lifting handle is connected to the surface support plate.

The female joint, the female guiding element and the female guiding locking element are horizontally connected with the male joint, the male guiding element and the male guiding locking element respectively. When the terminal is connected, the second mounting plate moves closer to the first mounting plate along the inner wall of the guide funnel, and is roughly guided through the guide funnel, and then through the cooperation of the main guide bolt, the secondary guide bolt, the main guide bolt socket and the secondary guide bolt socket to achieve precise guidance and positioning, the screw hole is facing the male guide locking bolt, the ROV rotates the female guide locking element through the ROV torsion interface, so that the second mounting plate moves to the first mounting plate, the male guiding locking bolt extends into the screw hole, and the limit protrusion The stage abuts against the end face of the second mounting plate away from the end of the first mounting plate, and the first mounting plate and the second mounting plate are locked.

The ROV operation barrel and the ROV twist interface are convenient for ROV operation. When the hydraulic jumper line enters the water, it can be lifted and lowered by the lifting handle.

The rear end of the second mounting plate is connected with a jumper terminal frame, which is set obliquely downward, and the two ends of the hydraulic pipeline are installed on the jumper terminal frame, and the two sides of the jumper terminal frame are vertical A pipeline protection plate is installed in the direction, the upper end of the bridge terminal frame is connected to the rear end surface of the second installation plate, the lower end of the bridge terminal frame is provided with a hoop and a bridge pressure plate, the hoop hoops the hydraulic pipeline, and the The bridging pressing plate tightly presses the hoop on the bridging terminal frame, and the upper part of the bridging terminal frame is horizontally provided with a pipeline pressing plate, which fixes the terminal part of the hydraulic pipeline.

The male joint includes a first adapter and a joint body sealingly connected to the rear of the first adapter. Both the first adapter and the joint body have a central hole along the axial direction. The first adapter and the joint body The central hole of the center hole communicates to form the fluid channel of the male joint, and a hollow first valve cavity is formed in the connecting part of the first adapter and the joint body, and the first valve cavity communicates with the fluid channel of the first adapter and the joint body , the first stop spring spool is arranged in the first valve chamber;

The female joint includes a second adapter and a connecting sleeve sealingly connected to the front of the second adapter, the second adapter and the connecting sleeve are both provided with a central hole in the axial direction, the second adapter and the connecting sleeve are The central hole communicates to form the fluid channel of the female joint, and a hollow second valve cavity is formed in the connecting part of the second adapter and the connecting sleeve, and the second valve cavity communicates with the fluid channel of the second adapter and the connecting sleeve, The second stop spring spool is arranged in the second valve chamber, the rear part of the joint body extends into the central hole at the front part of the connecting sleeve, and the outer wall at the rear part of the joint body and the inner wall of the central hole at the front part of the connecting sleeve Fitting together, the rear end of the first valve stem and the front end of the second valve stem press against each other, so that the second valve cavity communicates with the first valve cavity through the central hole.

The first stop spring spool includes a first valve seat, a first valve stem and a first spring, the first valve seat is installed on the inner wall of the first valve cavity, and the first valve stem is installed along the first adapter Axially arranged in the first valve cavity, the rear end of the first valve stem faces the joint body, and the front end faces the first valve seat. The rear part of the first valve stem is a hollow first sleeve, and the first sleeve A first diversion hole is opened on the side wall of the pipe, and the first sleeve extends into the fluid channel of the joint body. A first valve seal is arranged between the first valve stem and the fluid channel of the joint body. The first The valve seal is located in front of the first diversion hole, the first valve stem in front of the first valve seal is provided with a first stopper, one end of the first spring abuts against the front end of the first stopper, and the other One end abuts against the rear end of the first valve seat, and when the terminal of the male joint and the terminal of the female joint are separated, the first limiting member presses the first valve sealing member against the inner wall of the rear of the first valve cavity, and limits The first valve stem moves back and forth;

The second stop spring spool includes a second valve seat, a second valve stem and a second spring, the second valve seat is mounted on the inner wall of the second valve chamber, and the second valve stem is mounted along the second adapter Axially arranged in the second valve cavity, the front end of the second valve rod faces the connecting sleeve, and the rear end faces the second valve seat. The front part of the second valve rod is a hollow second sleeve, and the second sleeve A second diversion hole is opened on the side wall of the pipe, and the second sleeve extends into the fluid channel of the connecting sleeve. A second valve seal is arranged between the second valve stem and the fluid channel of the connecting sleeve. The second The valve seal is located behind the second diversion hole, the second valve stem behind the second valve seal is provided with a second limiter, and one end of the second spring abuts against the rear end of the second limiter, The other end is against the front end of the second valve seat, and when the male connector terminal and the female connector terminal are separated, the second limiting member presses the second valve sealing member against the inner wall of the front part of the second valve cavity, and limits The second valve rod moves forward, the rear end of the second valve rod and the front end of the first valve rod press against each other, the first spring and the second spring are compressed, and the first sleeve is provided with the part of the first diversion hole retreat into the first valve chamber, and the part of the second sleeve provided with the second diversion hole retreats into the second valve chamber, and the first valve chamber and the second valve chamber pass through the first diversion hole, the first sleeve The tube, the second casing and the second diversion hole are in communication.

With the above structure, the first valve chamber is arranged coaxially with the center hole of the joint body and the first adapter body, the front and rear ends of the first valve chamber communicate with the center hole of the first adapter body and the joint body respectively, and the joint body is used to connect with the female joint Butt joint, the first adapter is used to connect with pipelines such as oil pipes, the first valve seat is a frame structure or hollow structure, which allows fluid to pass through, and the rear end of the first valve stem can be worn on the first valve seat or connected to the second valve seat. There is a gap between the first valve seat, when it is not connected with the female joint, the first spring stretches to make the first limiter press the first valve seal on the side wall of the rear end of the first valve chamber, the rear of the first valve stem, That is, the first sleeve and the first diversion hole are located in the center hole of the joint body, and the first valve seal is located in front of the first diversion hole, which can be set in the center hole of the joint body or in the center hole of the joint body At the junction with the first valve cavity, the first valve seal seals the first valve cavity and the central hole of the joint body. When the male joint is connected to the female joint, the front end of the second valve stem of the female joint will abut against At the rear end of the first valve stem, press the first valve stem backward, the first spring continues to compress, the first guide hole at the front of the first valve stem retreats into the first valve cavity, and makes the first valve cavity and the first valve cavity The first sleeve communicates with the center hole, and the fluid can flow from the first sleeve through the first diversion hole into the second valve cavity; when docking, it is only necessary to press the first valve stem and the second valve stem, so that the first spring is compressed and the second valve stem is compressed. Once the diversion hole retreats into the first valve cavity, fast conduction can be realized. After the second valve stem of the female joint is separated from the first valve stem, the first spring returns and at the same time, the male joint is cut off, which can realize rapid conduction. The outer wall of the first casing can be fitted with the inner wall of the center hole of the joint body to further strengthen the sealing effect; the structure of the second stop spring spool and the first stop spring spool works immediately The principle is similar, and they are arranged facing each other. When not docked, the first spring makes the first stopper press the first valve seal against the inner wall of the rear part of the first valve cavity, and the second spring makes the second stopper press the first valve seal against the inner wall of the first valve cavity. The second valve seal is tightly pressed on the inner wall of the front part of the second valve chamber. When the male joint and the female joint are butted, the front end of the first valve stem and the rear end of the second valve stem press against each other, and the first spring and the second spring continue to compress , the part of the first sleeve provided with the first guide hole retreats into the first valve chamber, the part of the second sleeve provided with the second guide hole retreats into the second valve chamber, the first valve chamber and the second The valve cavity communicates with the first guide hole, the first sleeve, the second sleeve and the second guide hole, and the fluid channel of the male joint communicates with the fluid channel of the female joint.

The rear part of the connecting sleeve is sleeved on the front part of the second adapter through a threaded sleeve, and a sealing bush is installed on the inner wall of the central hole at the rear part of the connecting sleeve, and the front end of the sealing bush is against the inner wall of the central hole of the connecting sleeve. On the step, the rear end of the sealing bush abuts against the front end of the second adapter, the rear end of the sealing bush is a concave conical sealing surface, and the front end of the second adapter is provided with a barrel-shaped chamber, the front end of the second adapter and the rear end of the sealing bush form the second valve chamber with a large middle part and small ends; a main sealing ring is arranged between the front end of the sealing bush and the connecting sleeve, and the main The sealing ring is installed on the front inner wall of the sealing bush, and a static sealing ring is arranged at the joint between the sealing bush and the second adapter, and a first sealing ring is arranged between the outer wall of the sealing bush and the inner wall of the connecting sleeve. An anti-vibration ring is provided between the front end of the second adapter and the inner wall of the connecting sleeve, and an annular groove is opened on the inner wall of the connecting sleeve, the annular groove is located in front of the sealing bush, and the retaining ring and the second Two sealing rings, the rear part of the joint body is tubular, the outer wall of the first sleeve and the outer wall of the front end of the second sleeve are both attached to the inner wall of the rear part of the joint body, and the rear outer wall of the joint body is connected to the fluid channel at the rear part of the female joint The inner walls of the seals are sealed by the primary seal ring and the second seal ring.

The retaining ring is located behind the second sealing ring. When the female joint is docked with the male joint, the front part of the joint body of the male joint is inserted into the connecting sleeve of the female joint. The second sealing ring can connect the outer wall of the joint body and the inner wall of the fluid channel of the female joint. The first sealing ring and the static sealing ring can be O-rings, the material can be HNBR, hydrogenated nitrile rubber, and the anti-vibration ring can be made of polytetrafluoroethylene or PTFE; the main sealing ring is installed behind the sealing bush On the inner wall of the connecting sleeve, and fit the step on the inner wall of the fluid channel of the connecting sleeve, on the one hand, it can seal the rear end of the sealing bush and the step of the connecting sleeve; The inner wall of the fluid channel of the female joint is sealed, and the main sealing ring forms a multi-stage seal with the second sealing ring, the first sealing ring, and the static sealing ring to ensure the sealing effect between the connecting sleeve and the second adapter. The tightness after the joint is connected to prevent leakage. The main sealing ring is NHA sealing type, and PTFE material can be selected. NHA sealing is mainly used for high pressure, static and intermittent motion sealing.

The first limiting member includes a first annular limiting boss arranged in the middle of the first valve stem and a first valve cover overlaid on the first annular limiting boss, and the rear inner wall of the first valve cover is in contact with the The outer wall of the first annular limiting boss is threaded, one end of the first spring abuts against the front end of the first annular limiting boss, the other end abuts against the rear end of the first valve seat, and the front part of the first valve cover covers the The rear part of the first spring, the first valve seal is installed at the rear end of the first valve cover, when the male joint terminal and the female joint terminal are separated, the first spring stretches to press the first valve seal tightly on the On the conical slope of the inner wall of the front end of the first valve cavity; the second limiting member includes a second annular limiting boss arranged in the middle of the second valve stem and a second annular limiting boss that is sleeved on the second annular limiting boss. Valve cover, the inner wall of the front part of the second valve cover is threadedly connected with the outer wall of the second annular limiting boss, one end of the second spring abuts against the rear end of the second annular limiting boss, and the other end abuts against the second annular limiting boss. The front end of the valve seat, the rear part of the second valve cover covers the front part of the second spring, and the second valve seal is installed on the front end of the second valve cover. Elongation makes the second valve seal tightly pressed on the tapered sealing surface at the rear end of the sealing bush; a barrel-shaped chamber with a small front and a large rear is opened in the rear of the first adapter, and the front of the joint body passes through The threaded sleeve is outside the rear part of the first adapter, and the front part of the joint body and the rear part of the first adapter enclose the first valve cavity with a large middle part and a small front and rear end. The rear end of the first adapter and the joint A shockproof ring and a third sealing ring are arranged between the inner walls of the body, the diameter of the fluid channel between the joint body and the first adapter is smaller than the diameter of the front and rear ends of the first valve cavity, and the first guide hole is set at the first The front part of the casing, the second diversion hole is arranged at the rear of the second casing, the first diversion hole and the second diversion hole are 2-4, and respectively along the first casing and the second casing are evenly distributed circumferentially;

The first valve seat and the second valve seat have the same structure and are both disc-shaped. A central hole is opened on the first valve seat, and through holes are opened on the first valve seat around the central hole. The first valve seat The side wall at the front of the valve chamber is provided with a first annular step, the front end of the first valve seat is against the first annular step, the front end of the first valve rod is passed through the central hole of the first valve seat, and the first spring Covered on the front of the first valve stem, one end of the first spring is against the rear end of the first valve seat, and the other end is against the front end of the first annular limiting boss; the side wall at the rear of the second valve chamber is provided with The second annular step, the rear end of the second valve seat abuts against the second annular step, the rear end of the second valve stem is passed through the central hole of the second valve seat, and the second spring is sheathed on the second valve seat. One end of the second spring abuts against the front end of the second valve seat, and the other end abuts against the rear end of the second annular limiting boss.

A method for testing and installing the deep-water pipeline multi-circuit jumper system, the test method of the deep-water pipeline multi-circuit jumper system includes the following steps:

S1. Leak test the female connector terminal and the male connector terminal:

(1) Connect the female connector of the female connector terminal to the high-pressure testing equipment through the pipeline, and perform the leak test separately; connect the male connector of the male connector terminal to the high-voltage testing equipment through the pipeline, and conduct the leak test separately;

(2) Connect the terminal of the female connector to the terminal of the male connector, connect the female connector or the male connector to the high-voltage testing equipment through the pipeline, and perform a leak test during connection;

S2. Carry out flushing tests on the female connector terminal and the male connector terminal respectively to test their cleanliness:

(1) Test of the female connector terminal: connect the female connector terminal to the test flushing male connector terminal, and rinse the female connector terminal;

(2) Test of the male connector terminal: connect the male connector terminal to the test flushing female connector terminal, and rinse the male connector terminal;

The structure of the test flush male connector terminal is basically the same as that of the male connector terminal, the difference is that the test flush male connector terminal is used on the shore, the test flush male connector terminal is installed on the frame when used, and the female connector of the female connector terminal is the same as the test flush terminal. The male connectors of the male connector terminals are connected one by one, and then tested by flushing with male or female connectors; the structure of the test flush female connector terminal is basically the same as that of the female connector terminal, the difference is that there is no jumper for the test flush female connector terminal Instead of terminal frame, ROV operating bucket and ROV twist interface, a handle for operation is connected on the surface mount board.

The installation method of the deepwater pipeline multi-circuit jumper system includes the following steps:

a. Install the male connector, male connector terminal and docking connector on the equipment, cover the male connector terminal and docking connector with a long-term cover, and then install the device underwater;

b. Connecting two female joint terminals through a hydraulic pipeline to form the hydraulic jumper;

c. Put the protective cover on the two female connector terminals of the hydraulic jumper, lower the hydraulic jumper to the installation position through the two lifting handles, and then identify and locate the female connector terminal by ROV for installation;

d. Lower the hydraulic jumper to the water, and the two female connector terminals are respectively docked with the docking connectors on the underwater equipment;

e. Remove the long-term cover on the male connector terminal; butt the female connector terminal with the male connector terminal:

①. First guide the terminal of the female connector into the guiding funnel on the terminal of the male connector;

②. Perform a rough alignment through the main guide bolt on the male connector terminal;

③. Fine alignment is carried out through the two auxiliary guide bolts on the terminal of the male joint;

④ After the above alignment is completed, rotate the female guide locking element on the terminal of the female joint to lock;

⑤. Observe the observation hole on the guide funnel, if the logo fits, the docking is completed;

The number of times the ROV twists to fit the thread is a given value, so if the logo does not fit, you should continue to twist the thread until it fits

⑤. Observe the observation hole on the guide funnel, if the logo fits, the docking is completed;

f. Connect the water injection and gas injection pipelines to the male joints between the devices.

Among them, when the hydraulic pipeline is a flexible pipe with a length less than 30 meters, its installation method is as follows:

Preparations: 1) Recover the first end of the hydraulic jumper to the blocking piece and fix it;

2) Recover the second end of the hydraulic jumper;

Underwater deployment: 3), install the expansion rod, deploy the rigging, and connect it with the hydraulic jumper;

Installation: 4), deploy the hydraulic jumper to the corresponding underwater position;

5) Use ROV to locate the first female connector terminal of the hydraulic jumper and install it to the first male connector terminal;

6) Use ROV to locate the other female connector terminal of the hydraulic jumper and install it to another male connector terminal;

When the hydraulic pipeline is a flexible pipe with a length greater than 30 meters, its installation method is as follows:

Preparatory work: 1), install the rigging and expansion rod at the first end of the hydraulic jumper;

Underwater deployment: 2), lower the first end of the hydraulic jumper to the water until the second end protrudes from the drum;

3) Connect the suppression winch to the second end of the hydraulic jumper;

4) Continue to lower the first end of the hydraulic jumper, and place the second end above the tensioner;

5) Install the rigging and expansion rod at the second end of the hydraulic jumper;

6) Carry out a sealing test;

Installation: 7), deploy the first end of the hydraulic jumper to the corresponding underwater position;

8) Use ROV to locate the female connector terminal at the first end and install it to the first male connector terminal;

9) Deploy the second end of the hydraulic jumper to the corresponding underwater position;

10) Use the ROV to locate the female connector terminal at the second end and install it to another male connector terminal.

When the hydraulic pipeline is a flexible pipe with a length greater than 30 meters, first deploy and install one end of the hydraulic jumper, and then install the other end into the water to avoid damage to the flexible pipe caused by putting both ends down for installation at the same time.

The beneficial effects of the present invention are: simple structure, fast connection between underwater equipment, convenient fast docking and disassembly, shortened docking operation time, good sealing performance, suitable for use in deep water environment, all key locking elements can be Recycling, no reaction force on the operator, can install a large number of female connectors of different sizes to form multi-circuit simultaneous connection, all key hydraulic main seals are on the recyclable surface, achieving anti-extrusion sealing for connection and disconnection under full pressure, ensuring all The key parts and moving parts can be recovered, so that all key sealing surfaces are on the ROV side, ensuring the safety and reliability of the ROV docking and connection stages.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of a hydraulic jumper;

Fig. 3 is a structural schematic diagram of a female joint terminal and a jumper terminal frame;

Fig. 4 is a structural schematic diagram of a female connector terminal;

Fig. 5 is the right view of Fig. 4;

Fig. 6 is the structural representation of the second mounting board;

Fig. 7 is a schematic structural diagram of a male connector terminal;

Fig. 8 is the A direction view of Fig. 7;

Fig. 9 is a schematic structural diagram of the connection between the male joint and the female joint;

Fig. 10 is a schematic structural view of the long-term cover of the male connector terminal;

Fig. 11 is a schematic structural view of the protective cover of the female connector terminal;

Fig. 12 is a schematic diagram of performing a leak test separately when the female connector terminal and the male connector terminal are not connected;

Fig. 13 is a schematic diagram of a leak test after the female connector terminal is connected to the male connector terminal;

Fig. 14 is a test method step diagram of a deepwater pipeline multi-circuit jumper system;

Fig. 15 is a step diagram of the installation method of the deepwater pipeline multi-circuit jumper system;

Figure 16 is a schematic diagram of the installation of a flexible pipe with a hydraulic pipeline length of less than 30 meters;

Figure 17 is a schematic diagram of the installation of a flexible pipe with a hydraulic pipeline length greater than 30 meters.

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Figures 1 and 8, a deepwater pipeline multi-circuit bridging system includes a subsea manifold 41, a subsea electrical distribution assembly 42, a first subsea Christmas tree 43, a second subsea Christmas tree 44, The first subsea umbilical cable terminal 45 and the second subsea umbilical cable terminal 46 are six devices, and the subsea manifold 41 is equipped with four male joint terminals 01 and four docking joints 412, and each of the docking joints 412 Close to each male connector terminal 01, three male connector terminals 01, three docking connectors 412, two male connectors 1 and one underwater umbilical cable interface 47 are installed on the underwater electrical distribution assembly 42. Two male joint terminals 01, a docking joint 412 and a male joint 1 are installed on a subsea tree 43, and two male joint terminals 01, a docking joint 412 and a docking joint 412 are installed on the second underwater Christmas tree 44. A male connector 1, two male connector terminals 01, a male connector 1 and an oilfield umbilical cable interface 48 are installed on the first underwater umbilical cable terminal 45, and the second underwater umbilical cable terminal 46 is installed There is a male connector terminal 01, a docking connector 412, a male connector 1 and an umbilical cable interface 48 in the oil field. The docking connector 412 has the same structure as the male connector terminal 01, and each of the docking connectors 412 is covered with a long-term cover 413;

The first male joint terminal 01 of the first subsea oil tree 43 is connected to the first male joint terminal 01 of the subsea manifold 41 through a hydraulic jumper. The first subsea oil tree 43 The two male joint terminals 01 are connected to the first male joint terminal 01 of the subsea electrical distribution assembly 42 through a hydraulic jumper, and the male joint 1 of the first subsea tree 43 is connected to the subsea electrical distribution assembly. The first male joints 1 of 42 are connected by a water injection gas injection pipeline; the second male joint terminal 01 of the underwater electrical distribution assembly 42 is connected to the second male joint terminal 01 of the subsea manifold 41 are connected by a hydraulic jumper, and the third male terminal 01 of the subsea electrical distribution assembly 42 and the first male terminal 01 of the first subsea umbilical cable terminal 45 are connected by a hydraulic jumper connection, the second male connector 1 of the subsea electrical distribution assembly 42 is connected to the male connector 1 of the first underwater umbilical cable terminal 45 through a water injection and gas injection pipeline, and the underwater electrical distribution assembly 42 An underwater umbilical cable 49 is connected to the umbilical cable interface 47;

The second male joint terminal 01 of the first underwater umbilical cable terminal 45 is connected to the third male joint terminal 01 of the subsea manifold 41 through a hydraulic jumper. The first underwater umbilical cable terminal 45 The umbilical cable interface 48 in the oil field and the umbilical cable interface 48 in the oil field of the second underwater umbilical cable terminal 46 are connected through the umbilical cable 410 in the oil field; the male joint terminal 01 of the second underwater umbilical cable terminal 46 is connected to the The first male joint terminal 01 of the second subsea oil tree 44 is connected by a hydraulic jumper, the male joint 1 of the second subsea umbilical cable terminal 46 is connected to the male joint 1 of the second subsea oil tree 44 are connected through a water injection and gas injection pipeline; the second male terminal 01 of the second subsea tree 44 is connected with the fourth male terminal 01 of the subsea manifold 41 through a hydraulic jumper.

The water injection and gas injection pipeline includes a connecting pipeline 411, a female joint 2 is connected to both ends of the connecting pipeline 411, and the female joint 2 at one end of the connecting pipeline 411 is connected to a male joint 1 of one of the devices. The connecting pipeline 411 The female connector 2 at the other end is connected to a male connector 1 of another device; the hydraulic jumper includes a hydraulic pipeline 13, and the two ends of the hydraulic pipeline 13 are respectively connected to a female connector terminal 02, and a female connector of the hydraulic jumper Terminal 02 is connected to a male connector terminal 01 of one of the devices, and the other female connector terminal 02 of the hydraulic jumper is connected to a male connector terminal 01 of another device;

The male connector terminal 01 includes a vertically arranged first mounting plate 5, on which the male connector 1, the male guide element 3 and the male guide locking element 4 are installed horizontally, and the female connector terminal 02 includes a vertically arranged first mounting plate 5. Two mounting plates 6, the female connector 2, the female guide element 7 and the female guide locking element 8 are installed horizontally on the second mounting plate 6, the second mounting plate 6 is arranged opposite to the first mounting plate 5, the male connector 1, the male The guide element 3 and the male guide blocking element 4 are all facing the second mounting plate 6, the female joint 2, the female guiding element 7 and the female guiding blocking element 8 are facing the first mounting plate 5, and are respectively connected with the male joint 1, the male guiding element 3 and the The male guide locking element 4 is docked, the female guide element 7 is connected with the male guide element 3, the female joint 2 is set on the male joint 1, and is in pressure communication with the male joint 1, the female guide locking element 8 is connected with the male guide locking element 4, Lock between the second mounting plate 6 and the first mounting plate 5 .

The male guide element 3 includes a main guide bolt 31, a secondary guide bolt 32 and a guide funnel 33, the main guide bolt 31 is located on the top of the first mounting plate 5, and there are two secondary guide bolts 32, which are located on both sides of the bottom of the first mounting plate 5. The guide funnel 33 is connected with the edge of the first mounting plate 5, the male joint 1, the main guide bolt 31 and the secondary guide bolt 32 are all located in the guide funnel 33, the small diameter end of the guide funnel 33 is connected with the first mounting plate 5, and the large diameter End towards the second mounting plate 6, the female guide element 7 includes a main guide bolt insertion hole 71 and a secondary guide bolt insertion hole 72 opened on the second mounting plate 6, the main guide bolt insertion hole 71 and the secondary guide bolt insertion hole 72 Cooperate with the main guide bolt 31 and the auxiliary guide bolt 32 respectively, a guide sleeve 73 is also arranged in the main guide bolt insertion hole 71, the guide sleeve 73 is installed on the first mounting plate 5, and the main guide bolt 31 extends into the guide Inside the casing 73 , the secondary guide bolt 32 extends into the secondary guide bolt insertion hole 72 .

The male guiding locking element 4 is a male guiding locking bolt installed in the center of the first mounting plate 5, the male guiding locking bolt faces the second mounting plate 6, and the female guiding locking element 8 has a cylindrical structure, and the female guiding locking element 8 is pierced In the central hole provided by the second mounting plate 6, and can rotate in the central hole, and the two ends of the female guide locking element 8 protrude from the second mounting plate 6, and the female guiding locking element 8 faces the first mounting plate 5 A threaded hole 81 matched with the male guiding locking bolt is provided at one end of the upper end, and the male guiding locking bolt extends into the screw hole 81. The end of the female guiding locking element 8 away from the first mounting plate 5 is provided with an ROV twisting interface 82. A circle of limiting boss 83 is arranged on the outer wall of the female guide locking element 8, and the limiting boss 83 is against the end face of the second mounting plate 6 away from the end of the first mounting plate 5, and connects the second mounting plate 6 to the first mounting plate 5. The mounting plates 5 are clamped tightly, the male connector terminal 01 is fixedly installed on the steel frame 18 of the underwater equipment, and the female connector terminal 02 is used as a movable terminal, and is connected to the male connector terminal 01 by ROV operation.

The second mounting plate 6 is connected with a jumper terminal frame 9, the jumper terminal frame 9 is arranged obliquely downward, and the hydraulic pipe 13 connected to the female joint 2 is laid on the jumper terminal frame 9, and the female locking element 8 The upper cover is equipped with a surface support plate 10 and an ROV operation bucket 11, the surface support plate 10 and the ROV operation bucket 11 are close to the ROV twist interface 82, the bottom of the ROV operation bucket 11 faces the second mounting plate 6, and the surface support plate 10 is operated with the ROV The bottom of the bucket 11 is connected by cap bolts, the ROV twist interface 82 extends into the cavity of the ROV operation bucket 11, the surface support plate 10 is connected with a lifting handle 12, and the crossover terminal frame 9 is 10 to the vertical direction. ° set downwards, and different inclinations can also be set according to needs. The two sides of the bridge terminal frame 9 are vertically equipped with pipeline protection plates 14, and the upper end of the bridge terminal frame 9 is connected to the rear end surface of the female joint mounting plate 6. The lower end of the bridge terminal frame 9 is provided with a hoop 15 and a bridge plate 16, the hoop 15 hoops the hydraulic pipe 13, and the bridge plate 16 presses the hoop 15 tightly on the bridge terminal frame 9, the bridge terminal frame 9. A pipe clamp 17 is horizontally arranged on the upper part, and the pipeline clamp 17 fixes the end portion of the hydraulic pipe 13.

As further shown in Figure 9, both the male joint 1 and the female joint 2 are provided with fluid channels along the axial direction, the fluid channel of the male joint 1 is provided with a first stop spring spool, and the fluid channel of the female joint 2 is provided with a second Two stop spring spools, the front part of the female joint 2 is set outside the rear part of the male joint 1, the second valve stem 201 of the second stop spring spool is facing the first valve stem 101 of the first stop spring spool Set, the rear end of the first valve stem 101 and the front end of the second valve stem 201 press against each other, so that the fluid channels of the male joint 1 and the female joint 2 are communicated. The male joint 1 includes a first adapter 1a and a first adapter 1a. The joint body 1b that is sealed and connected at the rear of 1a, the first adapter 1a protrudes from the front end of the first mounting plate 5, the joint body 1b protrudes from the rear end of the first mounting plate 5, the first adapter 1a and the joint body 1b A central hole is set in the axial direction, the first adapter 1a communicates with the central hole of the joint body 1b to form a fluid channel of the male joint 1, and a hollow first valve cavity is formed in the connecting part of the first adapter 1a and the joint body 1b. The first valve cavity communicates with the fluid channel of the first adapter 1a and the adapter body 1b, and the first stop spring spool is arranged in the first valve cavity. The female joint 2 includes a second adapter 21 and a The connecting sleeve 22 that is sealed and connected to the front of the joint 21, the connecting sleeve 22 protrudes from the front end surface of the second mounting plate 6, and is connected with the joint body 1b, the second adapter 21 protrudes from the rear end surface of the second mounting plate 6, the Both the second adapter 21 and the connecting sleeve 22 are provided with a central hole in the axial direction. A hollow second valve cavity is formed in the connecting part, and the second valve cavity communicates with the fluid channel of the second adapter 21 and the connecting sleeve 22. The second stop spring spool is arranged in the second valve cavity, behind the joint body 1b part extends into the central hole at the front of the connecting sleeve 22, the outer wall of the rear part of the joint body 1b fits the inner wall of the central hole at the front of the connecting sleeve 22, and the rear end of the first valve stem 101 and the front end of the second valve stem 201 press against each other. , so that the second valve cavity communicates with the first valve cavity through the central hole.

The second adapter 21 of the female connector 2 on the female connector terminal 02 is connected to one end of the hydraulic pipeline 13, the male connector 1 on the male connector terminal 01 is passed through the first mounting plate 5, and the female connector terminal 02 is The female connector 2 is installed on the second mounting plate 6, the first adapter 1a of the male connector 1 on the male connector terminal 01 protrudes from the front end of the first mounting plate 5, and the joint body 1b protrudes from the first mounting plate 5, the connecting sleeve 22 on the female connector terminal 02 protrudes from the front end of the second mounting plate 6 and is connected to the joint body 1b, and the second adapter 21 protrudes from the second mounting plate 6 The rear end face of the rear end face, the second adapter 21 of the female joint 2 on the water injection and gas injection pipeline is connected to one end of the connecting pipeline 411, the first adapter 1a of the male joint 2 on the male joint terminal 01 and the male joint 2 on the water and gas injection pipeline All the first adapters 1a are connected to the pipelines in the equipment.

The first stop spring spool includes a first valve seat 102, a first valve stem 101 and a first spring 103. The first valve seat 102 is installed on the inner wall of the first valve chamber, and the first valve stem 101 is installed along the first adapter 1a. Axially arranged in the first valve cavity, the rear end of the first valve rod 101 faces the joint body 1b, and the front end faces the first valve seat 102. The rear part of the first valve rod 101 is a hollow first sleeve 104, the first A first diversion hole 105 is opened on the side wall of the sleeve 104, and the first sleeve 104 extends into the fluid channel of the joint body 1b, and a first valve seal is provided between the first valve stem 101 and the fluid channel of the joint body 1b. 106, the first valve seal 106 is located in front of the first diversion hole 105, the first valve rod 101 in front of the first valve seal 106 is provided with a first limiter, and one end of the first spring 103 abuts against The front end of the first limiting member and the other end are against the rear end of the first valve seat 102. When the male connector terminal 01 and the female connector terminal 02 are separated, the first limiting member presses the first valve sealing member 106 tightly against the first valve seat 102. On the inner wall of the rear part of the valve cavity, and limit the movement of the first valve rod 101 back and forth; the second stop spring spool includes a second valve seat 202, a second valve rod 201 and a second spring 203, and the second valve seat 202 is installed on On the inner wall of the second valve cavity, the second valve rod 201 is axially arranged in the second valve cavity along the second adapter 1a, the front end of the second valve rod 201 faces the connecting sleeve 22, and the rear end faces the second valve seat 202. The front part of the second valve stem 201 is a hollow second sleeve 204, and the side wall of the second sleeve 204 is provided with a second guide hole 205, and the second sleeve 204 extends into the fluid channel of the connecting sleeve 22, and the second A second valve seal 206 is arranged between the valve stem 201 and the fluid channel of the connecting sleeve 22, the second valve seal 206 is located behind the second guide hole 205, and the second valve stem behind the second valve seal 206 201 is provided with a second stopper, one end of the second spring 203 abuts against the rear end of the second stopper, and the other end abuts against the front end of the second valve seat 202, when the male connector terminal 01 and the female connector terminal 02 are separated , the second limiter presses the second valve seal 206 against the inner wall of the front part of the second valve cavity, and limits the forward movement of the second valve stem 201, the rear end of the second valve stem 201 and the front end of the first valve stem 101 Pressing against each other, the first spring 103 and the second spring 203 are compressed, the part of the first sleeve 104 provided with the first diversion hole 105 retreats into the first valve cavity, and the second sleeve 204 is provided with the second diversion hole The part 205 retreats into the second valve cavity, and the first valve cavity communicates with the second valve cavity through the first guide hole 105 , the first sleeve 104 , the second sleeve 204 and the second guide hole 205 .

The rear part of the connecting sleeve 22 is overlaid on the front part of the second adapter 21 through a threaded sleeve, and a sealing bush 23 is installed on the inner wall of the center hole at the rear part of the connecting sleeve 22. On the step, the rear end of the sealing bush 23 abuts against the front end of the second adapter 21. The rear end of the sealing bush 23 is a concave conical sealing surface. Barrel-shaped chamber, the front end of the second adapter 21 and the rear end of the sealing bush 23 form a second valve chamber with a large middle part and small ends; a main sealing ring 29 is arranged between the front end of the sealing bush 23 and the connecting sleeve 22 , the main sealing ring 29 is installed on the inner wall of the front part of the sealing bush 23, and a static sealing ring 25 is arranged at the connection between the sealing bush 23 and the second adapter 21, and the outer wall of the sealing bush 23 and the inner wall of the connecting sleeve 22 A first sealing ring 24 is arranged between them, and a shockproof ring 26 is arranged between the front end of the second adapter 21 and the inner wall of the connecting sleeve 22, and an annular groove is opened on the inner wall of the connecting sleeve 22, and the annular groove is located on the sealing bush 23 , and the annular groove is equipped with a retaining ring 27 and a second sealing ring 28, the rear part of the joint body 1b is tubular, and the outer wall of the first sleeve 104 and the outer wall of the front end of the second sleeve 204 are connected to the inner wall of the rear part of the joint body 1b. Fitting, the outer wall at the rear of the joint body 1b and the inner wall of the fluid channel at the rear of the female joint 2 are sealed by the main sealing ring 29 and the second sealing ring 28 .

The first limiting member includes a first annular limiting boss 108 arranged in the middle of the first valve stem 101 and a first valve cover 107 overlaid on the first annular limiting boss 108, the first valve cover 107 behind The inner wall of the inner part is threadedly connected with the outer wall of the first annular limiting boss 108. One end of the first spring 103 abuts against the front end of the first annular limiting boss 108, and the other end abuts against the rear end of the first valve seat 102. The first valve The front part of the cover 107 covers the rear part of the first spring 103, and the first valve seal 106 is installed on the rear end of the first valve cover 107. When the male connector terminal 01 and the female connector terminal 02 are separated, the first spring 103 stretches to make the second A valve seal 106 is tightly pressed on the conical slope of the inner wall of the front end of the first valve cavity; the second limiting member includes a second annular limiting boss 208 arranged in the middle of the second valve stem 201 and a sleeve on the second annular The second valve cover 207 on the limiting boss 208, the inner wall of the front part of the second valve cover 207 is threadedly connected with the outer wall of the second annular limiting boss 208, and one end of the second spring 203 abuts against the second annular limiting boss. The rear end of the platform 208, and the other end abuts against the front end of the second valve seat 202, the rear part of the second valve cover 207 covers the front part of the second spring 203, and the second valve seal 206 is installed on the front end of the second valve cover 207. When the joint terminal 01 is separated from the female joint terminal 02, the second spring 203 stretches to press the second valve seal 206 tightly against the tapered sealing surface at the rear end of the sealing bush 23; The rear is a large barrel-shaped chamber. The front part of the joint body 1b is covered outside the rear part of the first adapter 1a through a threaded sleeve. The front part of the joint body 1b and the rear part of the first adapter 1a are surrounded by a large middle part and a small front end. The first valve cavity, the shockproof ring 110 and the third sealing ring 111 are arranged between the rear end of the first adapter 1a and the inner wall of the joint body 1b, and the diameter of the fluid channel between the joint body 1b and the first adapter 1a is smaller than that of the first valve. The diameter of the front and rear ends of the cavity, the first diversion hole 105 is arranged at the front portion of the first sleeve pipe 104, the second diversion hole 205 is arranged at the rear portion of the second sleeve pipe 204, the first diversion hole 105 and the second diversion hole There are 2-4 holes 205, which are evenly distributed along the circumferential direction of the first casing 104 and the second casing 204;

The first valve seat 102 and the second valve seat 202 have the same structure and are both disc-shaped. The first valve seat 102 is provided with a central hole, and the first valve seat 102 around the central hole is provided with a through hole. A first annular step 109 is provided on the side wall of the front part of the valve chamber, the front end of the first valve seat 102 abuts against the first annular step 109, and the front end of the first valve stem 101 passes through the central hole of the first valve seat 102 Inside, the first spring 103 is sheathed on the front part of the first valve stem 101, one end of the first spring 103 is against the rear end of the first valve seat 102, and the other end is against the front end of the first annular limiting boss 108; the second valve chamber A second annular step 209 is provided on the side wall of the rear part, the rear end of the second valve seat 202 is against the second annular step 209, and the rear end of the second valve stem 201 is passed through the central hole of the second valve seat 202 , the second spring 203 is sheathed on the rear part of the second valve stem 201 , one end of the second spring 203 abuts against the front end of the second valve seat 202 , and the other end abuts against the rear end of the second annular limiting boss 208 .

The ROV is operated through the ROV operation barrel 11 and the ROV twist interface 82, so that the second mounting plate 6 moves closer to the first mounting plate 5 along the inner wall of the guide funnel 33, is roughly guided by the guide funnel 33, and then passes through the main guide bolt 31 and the secondary guide bolt. 32. The main guide bolt socket 71 and the secondary guide bolt socket 72 cooperate to realize precise guidance and positioning. After the male joint 1 and the female joint 2 are connected and conducted, the ROV rotates the female guide locking element 8 through the ROV twist interface 82, so that the first The second mounting plate 6 moves toward the first mounting plate 5, and the male guide locking bolt extends into the screw hole 81, and the position-limiting boss 83 is against the end face of the second mounting plate 6 away from the end of the first mounting plate 5, and the first mounting plate Lock between the mounting plate 5 and the second mounting plate 6. When the female connector terminal 02 and the male connector terminal 01 are separated, the female guide locking element 8 is rotated through the ROV twist interface 82 to make the female guide locking element 8 and the male guide locking element 7 Separation, the male connector 1 is separated from the female connector 2.

When the female connector terminal 02 is docked with the male connector terminal 01, the front part of the female connector 2 is placed on the rear part of the male connector 1, and the rear part of the tubular connector body 1b extends into the central hole of the connecting sleeve 22 and the sealing bush 23, and The outer wall and the inner wall of the connecting sleeve 22 and the sealing bush 23 are sealed by the main seal ring 29 and the second seal ring 28, the second sleeve 204 extends into the front part of the joint body 1b, the first sleeve 104 and the second sleeve The outer wall of the pipe 204 fits the inner wall of the joint body 1b to ensure the sealing effect. The front end of the first sleeve 104 and the rear end of the second sleeve 204 press against each other, so that the first spring 103 and the second spring 203 are compressed, and the first The part of the sleeve 104 provided with the first diversion hole 105 retreats into the first valve chamber, the part of the second sleeve 204 provided with the second diversion hole 205 retreats into the second valve chamber, and the first valve chamber and the first valve chamber The two valve chambers communicate with each other through the first guide hole 105, the first sleeve 104, the second sleeve 204 and the second guide hole 205, so as to realize the connection of the fluid channel between the male joint 1 and the female joint 2, and connect the female joint 2 and the female joint 2. After the male joint 1 is separated, the first spring 103 and the second spring 203 reset, the first guide hole 105 and the second guide hole 205 protrude out of the first valve cavity and the second valve cavity respectively, and the first valve seal 106 is tightly Pressed on the tapered surface at the rear of the joint body 1b, the second valve seal 206 is tightly pressed on the tapered sealing surface at the front end of the sealing bush 23, so that the male joint 1 and the female joint 2 are cut off respectively, and the male joint 1 and the female joint Junction 2 is cut off. Quick conduction and disconnection between the male connector 1 and the female connector 2 can be realized.

Both the oil pipe connection ends of the first adapter 1a and the second adapter 21 are joints with external threads. Positioning rings and snap rings can be installed on the outer walls of the first adapter 1a and the second adapter 21. In the male joint 1 or When the female joints 2 are installed in batches on the first mounting plate 5 and the second mounting plate 6 respectively, they are used for the positioning of the male joint 1 or the female joint 2. The rear end of the first sleeve 104 does not protrude from the rear end of the joint body 1b, which is convenient When docking, the second sleeve 204 of the female joint 2 extends into the tubular joint body 1b to butt against the first sleeve 104 and press against it. A circle of grooves can be provided on the front outer wall of the joint body 1b, and the groove can place a steel ring for Tighten the connection to the female connector 2.

The connecting sleeve 22 of the female joint 2 of the water injection and gas injection pipeline is provided with an internal thread, and the outer wall of the first adapter 1a of the male joint 1 is provided with an external thread that matches it. The female joint 2 is designed with an ROV operation port, which is also passed The ROV operates to lock the female joint 2 of the water injection and gas injection pipeline with the male joint 1 installed on the equipment.

As shown in Figures 12 to 15, a method for testing and installing the deep-water pipeline multi-circuit jumper system, wherein the test method for the deep-water pipeline multi-circuit jumper system includes the following steps:

S1. Conduct a leak test on the female connector terminal 02 and the male connector terminal 01:

(1) Connect the female connector 2 of the female connector terminal 02 to the high-voltage testing equipment through the pipeline, and conduct a leak test separately; connect the male connector 1 of the male connector terminal 01 to the high-voltage testing equipment through the pipeline, and perform the leak test separately;

(2) Connect the female connector terminal 02 to the male connector terminal 01, connect the female connector 2 or the male connector 1 to the high-voltage testing equipment through the pipeline, and perform a leak test during connection;

S2. Perform a water flushing test on the female connector terminal 02 and the male connector terminal 01 to test their cleanliness:

(1) Test of the female connector terminal 02: connect the female connector terminal 02 with the test flushing male connector terminal, and rinse the female connector terminal 02;

(2) Test of the male connector terminal 01: connect the male connector terminal 01 with the test flushing female connector terminal, and flush the male connector terminal 01; the installation method of the deep-water pipeline multi-circuit jumper system includes the following steps:

a. Install the male connector 1, the male connector terminal 01 and the docking connector 412 on the equipment, put a long-term cover on the male connector terminal 01 and the docking connector 412, and then install the equipment underwater;

b. Connect the two female connector terminals 02 through the hydraulic pipeline 13 to form the hydraulic jumper;

c. Put a protective cover on the two female connector terminals 02 of the hydraulic jumper, lower the hydraulic jumper to the installation position through the two lifting handles 10, and identify and locate the female connector terminal 02 by ROV for installation;

d. Lower the hydraulic jumper to the water, and the two female connector terminals 02 are respectively docked with the docking connector 412 on the underwater equipment;

e. Remove the long-term cover on the male connector terminal 01; dock the female connector terminal 02 with the male connector terminal 01:

①. First guide the female connector terminal 02 into the guiding funnel 33 on the male connector terminal 01;

②. Perform a rough alignment through the main guide bolt 31 on the male connector terminal 01;

③. Perform fine alignment through the two secondary guide bolts 32 on the male connector terminal 02;

④ After the above alignment is completed, rotate the female guide locking element 8 on the terminal 02 of the female joint to lock it;

⑤. Observe the observation hole on the guide funnel 33, if the logo fits, the docking is completed;

f. Connect the water and gas injection pipeline to the male joint 1 between the devices.

It also includes connecting the first subsea umbilical cable terminal and the second subsea umbilical cable terminal 46 through an umbilical cable 410 in the oil field;

When the female joint terminal 02 is connected to the male joint terminal 01, the ROV operates through the ROV operation barrel 11 and the ROV twist interface 82, so that the second mounting plate 6 moves closer to the first mounting plate 5 along the inner wall of the guiding funnel 33, and passes through the guiding funnel 33. Coarse guidance, and then through the cooperation of the main guide bolt 31, the auxiliary guide bolt 32, the main guide bolt socket 71 and the auxiliary guide bolt socket 72 to achieve precise guidance and positioning. After the male joint 1 and the female joint 2 are connected, the ROV passes through The ROV twisting interface 82 rotates the female guiding locking element 8, so that the second mounting plate 6 moves toward the first mounting plate 5, the male guiding locking bolt extends into the screw hole 81, and the limiting boss 83 is against the second mounting plate 6 to move away from it. On the end surface of one end of the first mounting plate 5, lock the first mounting plate 5 and the second mounting plate 6, and when the female connector terminal 02 and the male connector terminal 01 are separated, turn the female guide locking element 8 through the ROV twist interface 82 , so that the female guiding locking element 8 is separated from the male guiding locking element 7, and the male joint 1 is separated from the female joint 2.

Figure 10 shows the long-term cover 413 of the male connector terminal 01 and the docking connector 412. Its structure is basically the same as that of the female connector terminal 02. The difference is that a simulated hydraulic plug made of plastic is installed, which only plays a protective role without internal structure.

Fig. 11 is a protective cover when the terminal 02 of the female connector is submerged in water.

As shown in Figure 16, wherein, when the hydraulic pipeline 13 is a flexible pipe with a length less than 30 meters, its installation method is as follows:

Preparations: 1) Recover the first end of the hydraulic jumper to the blocking piece and fix it;

2) Recover the second end of the hydraulic jumper;

Underwater deployment: 3), install the expansion rod 006, deploy the rigging 007, and connect them with the hydraulic jumper;

Installation: 4), deploy the hydraulic jumper to the corresponding underwater position;

5) Use ROV to locate the first female connector terminal 02 of the hydraulic jumper and install it to the first male connector terminal 01;

6) Use ROV to locate another female connector terminal 02 of the hydraulic jumper and install it to another male connector terminal 01;

As shown in Figure 17, when the hydraulic pipeline 13 is a flexible pipe with a length greater than 30 meters, its installation method is as follows:

Preparatory work: 1), install the rigging 007 and the expansion rod 006 at the first end of the hydraulic jumper;

Underwater deployment: 2), lower the first end of the hydraulic jumper to the water until the second end protrudes from the drum;

3) Connect the suppression winch to the second end of the hydraulic jumper;

4) Continue to lower the first end of the hydraulic jumper, and place the second end above the tensioner;

5) Install the rigging 007 and the expansion rod 006 at the second end of the hydraulic jumper;

6) Carry out a sealing test;

Installation: 7), deploy the first end of the hydraulic jumper to the corresponding underwater position;

8) Use the ROV to locate the female connector terminal 02 at the first end, and install it to the first male connector terminal 01;

9) Deploy the second end of the hydraulic jumper to the corresponding underwater position;

10) Use the ROV to position the female connector terminal 02 at the second end and install it to another male connector terminal 01.

Claims (10)

1. A deepwater pipeline multi-circuit bridging system, characterized in that: comprising a subsea manifold (41), an underwater electrical distribution assembly (42), a first underwater Christmas tree (43), a second underwater Christmas tree (44), the first underwater umbilical cable terminal (45) and the second underwater umbilical cable terminal (46) six devices, the seabed manifold (41) is provided with at least four male joint terminals (01), The underwater electrical distribution assembly (42) is provided with at least three male connector terminals (01), at least two male connectors (1) and an underwater umbilical cable interface (47), and the first underwater oil production The tree (43) is provided with at least two male joint terminals (01) and at least one male joint (1), and the second subsea tree (44) is provided with at least two male joint terminals (01) and at least A male joint (1), the first subsea umbilical cable terminal (45) is provided with at least two male joint terminals (01), at least one male joint (1) and an umbilical cable interface (48) in the oilfield, The second underwater umbilical cable terminal (46) is provided with at least one male joint terminal (01), at least one male joint (1) and an oilfield umbilical cable interface (48); One of the male joint terminal (01) of the first subsea tree (43) is connected to one of the male joint terminal (01) of the subsea manifold (41) through a hydraulic jumper, and the first water One of the male joint terminals (01) of the lower Christmas tree (43) is connected to one of the male joint terminals (01) of the subsea electrical distribution assembly (42) through a hydraulic jumper wire, and the first subsea oil production One of the male joints (1) of the tree (43) is connected with one of the male joints (1) of the underwater electrical distribution assembly (42) through a water injection gas injection pipeline; The underwater umbilical cable (49) is connected to the underwater umbilical cable interface (47) of the underwater electrical distribution assembly (42), and one of the male connector terminals (01) of the underwater electrical distribution assembly (42) It is connected to one of the male joint terminals (01) of the subsea manifold (41) through a hydraulic jumper, and one of the male joint terminals (01) of the underwater electrical distribution assembly (42) is connected to the first underwater umbilical One of the male joint terminals (01) of the cable terminal (45) is connected by a hydraulic jumper, and one of the male joints (1) of the subsea electrical distribution assembly (42) is connected to the first underwater umbilical cable terminal ( 45) between one of the male joints (1) is connected through a water injection gas injection pipeline; One of the male joint terminals (01) of the first underwater umbilical cable terminal (45) is connected to one of the male joint terminals (01) of the subsea manifold (41) through a hydraulic jumper, and the first The oilfield umbilical cable interface (48) of the underwater umbilical cable terminal (45) is connected to the oilfield umbilical cable interface (48) of the second underwater umbilical cable terminal (46) through an oilfield umbilical cable (410) ; One of the male joint terminals (01) of the second subsea umbilical cable terminal (46) is connected to one of the male joint terminals (01) of the second subsea tree (44) through a hydraulic jumper, One of the male joints (1) of the second subsea umbilical cable terminal (46) is connected to one of the male joints (1) of the second subsea tree (44) through a water injection and gas injection pipeline; One of the male joint terminal (01) of the second subsea oil tree (44) is connected to one of the male joint terminal (01) of the subsea manifold (41) through a hydraulic jumper. 2. The deepwater pipeline multi-circuit jumper system according to claim 1, characterized in that: four male joint terminals (01) and four docking joints (412) are installed on the submarine manifold (41), each The two docking joints (412) are respectively close to each male joint terminal (01), and the underwater electrical distribution assembly (42) is equipped with three male joint terminals (01), one docking joint (412) and two A male joint (1), two male joint terminals (01), a docking joint (412) and a male joint (1) are installed on the first underwater oil production tree (43), and the second underwater oil production tree (43) Two male connector terminals (01), one docking connector (412) and one male connector (1) are installed on the tree (44), and two male connector terminals are installed on the first underwater umbilical cable terminal (45) (01) and a male connector (1), a male connector terminal (01), a docking connector (412) and a male connector (1) are installed on the second subsea umbilical cable terminal (46), the The docking joint (412) has the same structure as the male terminal (01), and each of the docking joints (412) is covered with a long-term cover; The water injection and gas injection pipeline includes a connecting pipeline (411), and a female joint (2) is respectively connected to both ends of the connecting pipeline (411), and the female joint (2) at one end of the connecting pipeline (411) is connected to one of the devices. A male joint (1) is connected, and the female joint (2) at the other end of the connecting pipeline (411) is connected with a male joint (1) of another device. 3. The deep-water pipeline multi-circuit jumper system according to claim 2, characterized in that: the hydraulic jumper comprises a hydraulic pipeline (13), and the two ends of the hydraulic pipeline (13) are respectively connected with a female joint terminal (02 ), one female terminal (02) of the hydraulic jumper is connected to one male terminal (01) of one of the devices, and the other female terminal (02) of the hydraulic jumper is connected to a male terminal (02) of the other device ( 01) connect; The male joint terminal (01) includes a first mounting plate (5), which is connected to the device, and the first mounting plate (5) is equipped with a male joint (1), a male guide The component (3) and the male guiding blocking element (4), the female joint terminal (02) includes a second mounting plate (6), the female joint (2), the female guiding element are installed on the second mounting plate (6) (7) and the female guide locking element (8), the second mounting plate (6) is arranged opposite to the first mounting plate (5), the female guiding element (7) is connected with the male guiding element (3), The front part of the female joint (2) is sleeved outside the rear part of the male joint (1), and is connected with the male joint (1) under pressure, and the female guiding locking element (8) is connected with the male guiding locking element (4), Lock between the second mounting plate (6) and the first mounting plate (5). 4. The deep-water pipeline multi-circuit jumper system according to claim 3, characterized in that: the first mounting plate (5) and the second mounting plate (6) are vertically arranged, and the male joint (1) , the male guiding element (3) and the male guiding blocking element (4) are horizontally installed on the first mounting plate (5), and face the second mounting plate (6), the female joint (2), the female guiding The element (7) and the female guiding and blocking element (8) are installed horizontally on the second mounting plate (6), and the female joint (2), the female guiding element (7) and the female guiding and blocking element (8) face the first mounting plate (5), and respectively docked with the male joint (1), the male guiding element (3) and the male guiding locking element (4); Both the male joint (1) and the female joint (2) are provided with a fluid passage along the axial direction, and a first stop spring spool is arranged in the fluid passage of the male joint (1), and the female joint (2) A second flow stop spring spool is arranged in the fluid passage of the female joint (2), the connecting sleeve (22) of the female joint (2) is sleeved on the first adapter (1a) of the male joint (1), and the second stop flow The second valve stem (201) of the spring spool is opposite to the first valve stem (101) of the first flow-stop spring spool, and the rear end of the first valve stem (101) is connected to the front end of the second valve stem (201). press against each other, so that the fluid channels of the male joint (1) and the female joint (2) are connected, and the second adapter (21) of the female joint (2) of the female joint terminal (02) is connected with the hydraulic pipeline (13) One end is connected, and the second adapter (21) of the female joint (2) of the water injection and gas injection pipeline is connected to one end of the connecting pipeline (411); The male guide element (3) includes a main guide bolt (31), a secondary guide bolt (32) and a guide funnel (33), the main guide bolt (31) is located on the top of the first mounting plate (5), and the secondary There are two guide bolts (32), which are located on both sides of the lower part of the first mounting plate (5), the guide funnel (33) is connected to the edge of the first mounting plate (5), the male joint (1), the main guide Both the bolt (31) and the auxiliary guide bolt (32) are located in the guide funnel (33), the small diameter end of the guide funnel (33) is connected with the first mounting plate (5), and the large diameter end faces the second mounting plate (6), the female guide element (7) includes a main guide bolt insertion hole (71) and a secondary guide bolt insertion hole (72) opened on the second mounting plate (6), the main guide bolt insertion hole (71) and secondary guide bolt sockets (72) are matched with the main guide bolts (31) and secondary guide bolts (32) respectively, and the main guide bolts (31) extend into the main guide bolt sockets (71) Inside, the secondary guide bolt (32) extends into the secondary guide bolt socket (72); The male guiding locking element (4) is a male guiding locking bolt installed in the center of the first mounting plate (5), the male guiding locking bolt faces the second mounting plate (6), and the female guiding locking element (8 ) is a cylindrical structure, the female guiding locking element (8) is set in the central hole provided by the second mounting plate (6), and can rotate in the central hole, and the female guiding locking element (8) The two ends protrude from the second mounting plate (6), and the female guide locking element (8) is provided with a screw hole (81) matched with the male guide locking bolt toward one end of the first mounting plate (5), The male guiding locking bolt extends into the screw hole (81), and the end of the female guiding locking element (8) away from the first mounting plate (5) is provided with an ROV twist interface (82), and the female guiding locking element (8) ) outer wall is provided with a circle of limit boss (83), the limit boss (83) against the end face of the second mounting plate (6) away from the end of the first mounting plate (5), and the second mounting plate (6) clamping with the first mounting plate (5); A surface support plate (10) and an ROV operation bucket (11) are set on the female guide locking element (8), and the surface support plate (10) and the ROV operation bucket (11) are close to the ROV twist interface (82), The bottom of the ROV operation bucket (11) is facing the second installation plate (6), the surface support plate (10) is connected with the bottom of the ROV operation bucket (11) through cap bolts, and the ROV twist interface (82) protrudes into the cavity of the ROV operation bucket (11), and the lifting handle (12) is connected to the surface support plate (10). 5. The deep-water pipeline multi-circuit jumper system according to claim 4, characterized in that: the rear end of the second installation plate (6) is connected with a jumper terminal frame (9), and the jumper terminal frame (9) It is arranged obliquely downward, and the two ends of the hydraulic pipeline (13) are installed on the bridge terminal frame (9), and the two sides of the bridge terminal frame (9) are vertically installed with pipeline protection plates (14). The upper end of the bridge terminal frame (9) is connected to the rear end face of the second mounting plate (6), and the lower end of the bridge terminal frame (9) is provided with a hoop (15) and a bridge pressure plate (16), the hoop ( 15) Hoop the hydraulic pipeline (13), the bridging plate (16) tightly presses the hoop (15) on the bridging terminal frame (9), and the upper part of the bridging terminal frame (9) is horizontally provided with pipes A pressure plate (17), the pipe pressure plate (17) fixes the end portion of the hydraulic pipeline (13). 6. The deep-water pipeline multi-circuit jumper system according to claim 5, characterized in that: the male joint (1) includes a first adapter (1a) and is sealed with the rear of the first adapter (1a) The joint body (1b) of the joint body (1b), the first adapter (1a) and the joint body (1b) are provided with a central hole in the axial direction, and the central hole of the first adapter (1a) and the joint body (1b) communicates to form a In the fluid channel of the male joint (1), a hollow first valve cavity is formed in the connecting part of the first adapter (1a) and the joint body (1b), and the first valve cavity is connected with the first adapter (1a) It communicates with the fluid channel of the joint body (1b), and the first stop spring spool is arranged in the first valve chamber; The female joint (2) includes a second adapter (21) and a connection sleeve (22) sealingly connected to the front of the second adapter (21), the second adapter (21) and the connection sleeve (22) A central hole is opened in the axial direction, and the second adapter (21) communicates with the central hole of the connecting sleeve (22) to form the fluid channel of the female joint (2), and the second adapter (21) and the connection A hollow second valve chamber is formed in the connecting part of the sleeve (22), and the second valve chamber communicates with the fluid channel of the second adapter (21) and the connecting sleeve (22), and the second stop spring spool is arranged on In the second valve chamber, the rear part of the joint body (1b) extends into the central hole at the front of the connecting sleeve (22), and the outer wall of the rear part of the joint body (1b) is connected to the central hole at the front of the connecting sleeve (22). The inner walls are attached, and the rear end of the first valve stem (101) and the front end of the second valve stem (201) press against each other, so that the second valve cavity communicates with the first valve cavity through the central hole. 7. The deep-water pipeline multi-circuit crossover system according to claim 6, characterized in that: the first stop spring spool includes a first valve seat (102), a first valve stem (101) and a first spring (103), the first valve seat (102) is installed on the inner wall of the first valve cavity, and the first valve stem (101) is axially arranged in the first valve cavity along the first adapter (1a), the The rear end of the first valve rod (101) faces the joint body (1b), and the front end faces the first valve seat (102). The rear part of the first valve rod (101) is a hollow first sleeve (104), so The side wall of the first sleeve (104) is provided with a first diversion hole (105), and the first sleeve (104) extends into the fluid channel of the joint body (1b), and the first valve stem (101) A first valve seal (106) is arranged between the fluid passage of the joint body (1b), and the first valve seal (106) is located in front of the first diversion hole (105), and the first valve seal (106 ) is provided with a first stopper on the first valve stem (101) in front, one end of the first spring (103) abuts against the front end of the first stopper, and the other end abuts against the first valve seat (102) At the rear end, when the male joint terminal (01) and the female joint terminal (02) are separated, the first limiting member presses the first valve sealing member (106) against the rear inner wall of the first valve cavity, And limit the movement of the first valve rod (101) back and forth; The second stop spring spool includes a second valve seat (202), a second valve stem (201) and a second spring (203), and the second valve seat (202) is installed on the inner wall of the second valve chamber , the second valve rod (201) is arranged axially in the second valve cavity along the second adapter (1a), the front end of the second valve rod (201) faces the connecting sleeve (22), and the rear end faces the first Two valve seats (202), the front part of the second valve rod (201) is a hollow second sleeve (204), and the side wall of the second sleeve (204) is provided with a second diversion hole (205), The second sleeve (204) extends into the fluid channel of the connecting sleeve (22), and a second valve seal (206) is arranged between the second valve stem (201) and the fluid channel of the connecting sleeve (22). , the second valve seal (206) is located behind the second diversion hole (205), and the second valve stem (201) behind the second valve seal (206) is provided with a second limiter, said One end of the second spring (203) abuts against the rear end of the second limiter, and the other end abuts against the front end of the second valve seat (202), when the male joint terminal (01) and the female joint terminal (02) are separated , the second limiting member presses the second valve seal (206) against the inner wall of the front part of the second valve cavity, and limits the forward movement of the second valve stem (201), and the second valve stem (201 ) rear end and the front end of the first valve rod (101) are pressed against each other, the first spring (103) and the second spring (203) are compressed, and the first sleeve (104) is provided with a first guide hole (105) The part of the second sleeve (204) provided with the second diversion hole (205) retreats into the second valve chamber, and the first valve chamber and the second valve chamber pass through the first valve chamber. A diversion hole (105), the first sleeve (104), the second sleeve (204) and the second diversion hole (205) are in communication. 8. The deep-water pipeline multi-circuit jumper system according to claim 7, characterized in that: the rear part of the connecting sleeve (22) is threaded on the front part of the second adapter (21), and the connecting sleeve (22) A sealing bushing (23) is installed on the inner wall of the central hole at the rear, and the front end of the sealing bushing (23) is against the step set on the inner wall of the central hole of the connecting sleeve (22), and the rear end of the sealing bushing (23) Abutting against the front end of the second adapter (21), the rear end of the sealing bush (23) is a concave conical sealing surface, and the front end of the second adapter (21) is provided with a barrel with a large front and a small rear shaped chamber, the front end of the second adapter (21) and the rear end of the sealing bush (23) enclose the second valve chamber with a large middle part and a small two ends; the front end of the sealing bush (23) and the connecting sleeve (22) is provided with a main seal ring (29), the main seal ring (29) is installed on the front inner wall of the seal bush (23), the seal bush (23) and the second adapter (21) A static sealing ring (25) is provided at the joint, a first sealing ring (24) is provided between the outer wall of the sealing bush (23) and the inner wall of the connecting sleeve (22), and the front end of the second adapter (21) is connected to the An anti-shock ring (26) is arranged between the inner walls of the sleeve (22), and an annular groove is opened on the inner wall of the connecting sleeve (22). The annular groove is located in front of the sealing bush (23), and the ring groove is installed There is a retaining ring (27) and a second sealing ring (28), the rear part of the joint body (1b) is tubular, the outer wall of the first sleeve (104) and the outer wall of the front end of the second sleeve (204) are connected with the joint The rear inner wall of the main body (1b) is attached, and the main sealing ring (29) and the second sealing ring (28) are passed between the outer wall of the joint body (1b) and the inner wall of the fluid channel at the rear of the female joint (2). seal. 9. The deep-water pipeline multi-circuit crossover system according to claim 8, characterized in that: the first limiting member includes a first annular limiting boss (108) arranged in the middle of the first valve stem (101) And the first valve cover (107) that is overlaid on the first annular limiting boss (108), the rear inner wall of the first valve cover (107) is threadedly connected with the outer wall of the first annular limiting boss (108), One end of the first spring (103) abuts against the front end of the first annular limiting boss (108), the other end abuts against the rear end of the first valve seat (102), and the front part of the first valve cover (107) covers The first valve seal (106) is mounted on the rear end of the first valve cover (107) and is separated from the male connector terminal (01) and the female connector terminal (02) , the first spring (103) stretches so that the first valve seal (106) is pressed against the tapered slope of the front end inner wall of the first valve cavity; ) in the middle of the second annular limiting boss (208) and the second valve cover (207) overlaid on the second annular limiting boss (208), the inner wall of the front part of the second valve cover (207) and the first The outer walls of the two annular limiting bosses (208) are threaded, and one end of the second spring (203) abuts against the rear end of the second annular limiting boss (208), and the other end abuts against the second valve seat (202). ) front end, the rear part of the second valve cover (207) covers the front part of the second spring (203), and the second valve seal (206) is installed on the front end of the second valve cover (207). When the terminal (01) is separated from the female connector terminal (02), the second spring (203) is stretched to make the second valve seal (206) tightly pressed against the tapered sealing surface at the rear end of the sealing bush (23); A barrel-shaped chamber with a small front and a large rear is opened in the rear part of the first adapter (1a), and the front part of the joint body (1b) is threaded outside the rear part of the first adapter (1a). The front part of the main body (1b) and the rear part of the first adapter (1a) enclose the first valve cavity with a large middle part and a small front and rear end. The rear end of the first adapter (1a) is connected to the inner wall of the joint body (1b) An anti-vibration ring (110) and a third sealing ring (111) are arranged between, the diameter of the fluid channel between the joint body (1b) and the first adapter (1a) is smaller than the diameter of the front and rear ends of the first valve cavity, and the The first guide hole (105) is arranged at the front of the first sleeve (104), the second guide hole (205) is arranged at the rear of the second sleeve (204), and the first guide There are 2-4 holes (105) and second diversion holes (205), which are evenly distributed along the circumference of the first casing (104) and the second casing (204); The first valve seat (102) and the second valve seat (202) have the same structure and are disc-shaped. The first valve seat (102) is provided with a central hole, and the first valve seat ( 102) is provided with a through hole, and a first annular step (109) is provided on the side wall of the front part of the first valve chamber, and the front end of the first valve seat (102) abuts on the first annular step (109) , the front end of the first valve stem (101) is pierced in the center hole of the first valve seat (102), the first spring (103) is sheathed on the front of the first valve stem (101), and one end of the first spring (103) abut against the rear end of the first valve seat (102), and the other end abuts against the front end of the first annular limiting boss (108); a second annular step (209) is provided on the side wall at the rear of the second valve chamber, The rear end of the second valve seat (202) abuts against the second annular step (209), the rear end of the second valve stem (201) is passed through the central hole of the second valve seat (202), and the second Two springs (203) are sheathed on the rear part of the second valve stem (201), one end of the second spring (203) is against the front end of the second valve seat (202), and the other end is against the second annular limiting boss (208) rear end. 10. A method for testing and installing the deep-water pipeline multi-circuit jumper system according to claim 5, characterized in that: The test method of the deepwater pipeline multi-circuit jumper system comprises the following steps: S1. Perform a leak test on the female connector terminal (02) and the male connector terminal (01): (1) Connect the female connector (2) of the female connector terminal (02) to the high-voltage test equipment through the pipeline, and conduct a separate leak test; connect the male connector (1) of the male connector terminal (01) to the high-voltage test equipment through the pipeline , leak test alone; (2) Connect the female connector terminal (02) to the male connector terminal (01), connect the female connector (2) or the male connector (1) to the high-voltage testing equipment through the pipeline, and perform a leak test during connection; S2. Carry out flushing tests on the female connector terminal (02) and the male connector terminal (01) respectively to test their cleanliness: (1) Test of the female connector terminal (02): connect the female connector terminal (02) to the test flushing male connector terminal, and rinse the female connector terminal (02); (2) Test of the male connector terminal (01): connect the male connector terminal (01) to the test flushing female connector terminal, and rinse the male connector terminal (01); The installation method of the deepwater pipeline multi-circuit jumper system includes the following steps: a. Install the male connector (1), male connector terminal (01) and docking connector (412) on the equipment, put the long-term cover on the male connector terminal (01) and docking connector (412), and then install the equipment underwater; b. Connecting two female joint terminals (02) through a hydraulic pipeline (13) to form the hydraulic jumper; c. Put the protective cover on the two female connector terminals (02) of the hydraulic jumper, lower the hydraulic jumper to the installation position through the two lifting handles (10), and identify and locate the female connector terminal (02) by ROV , to install; Wherein, when the hydraulic pipeline (13) is a flexible pipe with a length less than 30 meters, its installation method is as follows: Preparatory work: 1), recover the first end of the hydraulic jumper to the blocking piece, and fix it; 2) Recover the second end of the hydraulic jumper; Underwater deployment: 3), install the expansion rod, deploy the rigging, and connect it with the hydraulic jumper; Installation: 4), deploy the hydraulic jumper to the corresponding underwater position; 5) Use ROV to locate the first female connector terminal (02) of the hydraulic jumper, Install to the first male connector terminal (01); 6) Use ROV to locate the other female connector terminal (02) of the hydraulic jumper, Mounts to another male connector terminal (01); When the hydraulic pipeline (13) is a flexible pipe with a length greater than 30 meters, its installation method is as follows: Preparatory work: 1), install the rigging and expansion rod at the first end of the hydraulic jumper; Underwater deployment: 2), lower the first end of the hydraulic jumper to the water until the second end protrudes from the drum; 3) Connect the suppression winch to the second end of the hydraulic jumper; 4) Continue to lower the first end of the hydraulic jumper, and place the second end above the tensioner; 5) Install the rigging and expansion rod at the second end of the hydraulic jumper; 6), carry out sealing test; Installation: 7), deploy the first end of the hydraulic jumper to the corresponding underwater position; 8) Use the ROV to locate the female connector terminal (02) at the first end, and install it to the first male connector terminal (01); 9) Deploy the second end of the hydraulic jumper to the corresponding underwater position; 10), use the ROV to locate the female connector terminal (02) at the second end, and install it to another male connector terminal (01); d. Lower the hydraulic jumper to the water, and connect the two female connector terminals (02) with the docking connectors (412) on the underwater equipment respectively; e. Remove the long-term cover on the male connector terminal (01); dock the female connector terminal (02) with the male connector terminal (01); ①. First guide the female connector terminal (02) into the guide funnel (33) on the male connector terminal (01); ②. Perform a rough alignment through the main guide bolt (31) on the male connector terminal (01); ③. Perform fine alignment through the two auxiliary guide bolts (32) on the male connector terminal (02); ④. After the above alignment is completed, rotate the female guide locking element (8) on the female joint terminal (02) to lock it; ⑤. Observe the observation hole on the guide funnel (33), if the logo fits, the docking is completed; f. Connect the water and gas injection pipeline to the male joint (1) between the devices.