CN109723425B - Flowmeter for oil pipe of oilfield water injection well - Google Patents
Flowmeter for oil pipe of oilfield water injection well Download PDFInfo
- Publication number
- CN109723425B CN109723425B CN201811518437.9A CN201811518437A CN109723425B CN 109723425 B CN109723425 B CN 109723425B CN 201811518437 A CN201811518437 A CN 201811518437A CN 109723425 B CN109723425 B CN 109723425B
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- joint
- pushing
- sleeve
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The application discloses a flowmeter for an oil pipe of an oilfield water injection well, which comprises a cable head, an oil pipe full-flow collecting device, a wire passing cylinder and a connector, wherein the cable head, the oil pipe full-flow collecting device, the wire passing cylinder and the connector are sequentially connected from top to bottom, the oil pipe full-flow collecting device is used for sealing and blocking an inner cavity of the oil pipe, a flow detecting device is arranged in the wire passing cylinder, and the connector is connected with an adjusting instrument. The flowmeter has high measurement accuracy, can be suitable for measuring smaller flow fluid, is favorable for realizing synchronous adjustment of liquid parameters in the oil pipe, and effectively improves the accuracy of water injection flow control of the oil field stratum.
Description
Technical Field
The application relates to a flowmeter, in particular to a flowmeter for an oil pipe of an oilfield water injection well.
Background
When the conventional oilfield operation is oil well water injection, in order to accurately measure injection flow for stratum water injection, a packing type flowmeter special for an oil pipe needs to be adopted, and the flowmeter structure is usually a collecting umbrella type structure, so that measurement is inaccurate due to leakage of the collecting umbrella, and especially, the measurement of fluid with smaller flow is more inaccurate, so that the flow cannot be accurately controlled when the stratum water injection is carried out in the oilfield operation, and the development operation of the oilfield is affected.
Disclosure of Invention
In order to solve the technical problems, the application discloses a flowmeter for an oil pipe of an oilfield water injection well, which has high measurement accuracy, can be suitable for measuring smaller-flow fluid, and can effectively improve the accuracy of oilfield stratum water injection flow control.
The application is realized by the following technical scheme:
the utility model provides a flowmeter for oil field water injection well oil pipe, includes from last cable head, the full current collector of oil pipe, cross line section of thick bamboo and the connector that links to each other in proper order down, the full current collector of oil pipe is used for sealed blocking oil pipe inner chamber, is provided with flow detection device in the line section of thick bamboo that crosses, the connector is used for connecting all kinds of regulating instruments.
According to the application, the cable head, the oil pipe full-flow collecting device, the wire passing cylinder and the connector are arranged from top to bottom, the designed oil pipe full-flow collecting device can effectively seal the oil pipe flow channel, all inflow liquid is led into the flowmeter, the flow is measured by the flow detection device, the measurement accuracy is improved, the device is particularly suitable for measuring fluid with smaller flow, and the accuracy of water injection flow control of an oil field stratum is effectively improved.
The centralizing body on the cable head can ensure that the whole flowmeter is stably connected to the right central position of any part of the oil pipe, and can improve the sealing effect of the oil pipe full-flow collecting device.
The oil pipe full current collecting device is provided with a sealer, the sealer comprises a sealing cylinder and an elastic sealing ring, the elastic sealing ring is cylindrical and sleeved on the periphery of the sealing cylinder, and the elastic sealing ring protrudes towards the periphery from the middle under the pushing of the pushing device to form a sealing ring capable of sealing the inner cavity of the oil pipe.
According to the application, the elastic blocking ring is adopted to form the sealing ring to seal the inner cavity of the oil pipe in a protruding mode under pressure, compared with the existing current collecting umbrella type current collector, the circular sealing ring can be better attached to the inner wall of the oil pipe, liquid leakage is avoided, the sealing performance is good, the precision is high, compared with the existing leather bag oil-filled current collector, the structure is simpler, the cost is low, the power consumption is low, additional working liquid is not required to be filled, and the environment-friendly and energy-saving effects are achieved.
The oil pipe full current collector above the sealer is provided with a liquid inlet, a first flow channel communicated with the liquid inlet is arranged in the oil pipe full current collector, the sealing cylinder is provided with a plurality of pressure balance holes, and the pressure balance holes are communicated with the first flow channel and the gap between the elastic blocking ring and the sealing cylinder.
The pressure balance hole is used for pressure between the first flow passage and the sealing cylinder and the elastic sealing ring, so that stability and compression resistance of the elastic sealing ring after being converted into the sealing ring are improved.
The flow detection device is an electromagnetic flowmeter, a liquid outlet hole is formed in the lower end of the wire passing cylinder, the liquid outlet hole is communicated with the second flow passage, an electric wire steel pipe penetrating through the oil pipe full-current collecting device, the wire passing cylinder and the axis of the connector is arranged in a penetrating mode, a signal wire is arranged in the electric wire steel pipe, and the top end of the signal wire is connected in the cable head.
The electromagnetic flowmeter on the periphery of the flow channel in the wire passing cylinder is used for detecting the quantity of fluid flowing through, and the signal wire is arranged in the wire steel pipe, so that the signal wire is always in a low-pressure area, the pressure of high-pressure liquid is isolated, and the functions of protecting the signal wire from pressure and corrosion in the instrument are achieved.
The oil pipe full-flow collecting device further comprises a protective cylinder, a pushing mechanism, a transmission mechanism and a liquid discharging lower connector, wherein the top of the protective cylinder is connected with the cable head, the pushing mechanism is fixed in the inner cavity of the protective cylinder and pushes the transmission mechanism below to do reciprocating linear motion, the transmission mechanism pushes the elastic blocking ring of the sealer below compression to enable the elastic blocking ring to seal the inner cavity of the oil pipe, the top end of the liquid discharging lower connector is connected to the bottom of the sealing cylinder, and the bottom end of the liquid discharging lower connector is connected with the connector.
The transmission mechanism comprises a pushing sleeve, one end of the elastic blocking ring is fixed on the outer wall of the sealing cylinder, the other end of the elastic blocking ring is fixed on the outer wall of the bottom end of the pushing sleeve, and the inner wall of the pushing sleeve is in sliding contact with the outer wall of the sealing cylinder.
The transmission mechanism further comprises a pushing shaft, a pushing rod installation joint, an intermediate connecting sleeve, an intermediate connecting joint and an intermediate fixing joint, wherein the axes of the protecting cylinder, the pushing shaft, the pushing rod installation joint, the intermediate connecting sleeve, the intermediate connecting joint, the intermediate fixing joint, the sealing cylinder, the elastic blocking ring and the pushing sleeve are all on the same straight line, the pushing rod installation joint and the intermediate connecting sleeve are all sleeved on the periphery of the pushing shaft, and the pushing rod installation joint, the intermediate connecting sleeve and the intermediate connecting joint are connected end to end, the pushing rod installation joint and the intermediate connecting sleeve are fixedly connected, the intermediate connecting sleeve and the intermediate connecting joint are connected in a sliding manner, a limiting hole is formed in the upper end of the intermediate connecting joint, the bottom end of the pushing shaft is arranged in the limiting hole, and the pushing shaft can freely slide in the limiting hole.
The middle fixed joint comprises a balance rod, the upper end of the balance rod is fixedly connected with a middle joint, the bottom end of the balance rod penetrates through a sealing cylinder to be connected with a liquid outlet lower joint, an annular connecting block is connected with the inner wall of the upper end of the sealing cylinder and fixedly connected with the outer wall of the upper end of the balance rod, a liquid inlet is formed in a pushing sleeve, a plurality of strip-shaped holes are formed in the upper end of the middle connecting sleeve, the upper end of the pushing sleeve is connected with a pushing shaft through a plurality of transmission pins, the transmission pins penetrate through the strip-shaped holes, gaps are formed among the inner wall of the pushing sleeve, the middle connecting sleeve, the middle joint and the middle fixed joint, gaps are formed between the sealing cylinder and the balance rod, through holes are formed in the annular connecting block, and the gaps on the through holes and the two sides jointly form a first flow passage.
The liquid discharging lower joint is provided with a liquid discharging hole, one end of the liquid discharging hole is communicated with the first flow channel, the other end of the liquid discharging hole is communicated with the second flow channel, the pressure balancing hole is formed in one side, close to the pushing sleeve, of the sealing cylinder, the balancing rod is provided with a flow guiding ball, the diameter of the flow guiding ball is larger than that of the balancing rod, and the flow guiding ball and the pressure balancing hole are arranged on the same vertical plane.
Because be equipped with a water conservancy diversion ball on the balancing pole, water conservancy diversion ball diameter is greater than the balancing pole diameter, and water conservancy diversion ball and pressure balance hole are on same vertical plane, consequently in runner one, the fluid that flows in from water conservancy diversion ball upper end can incline the direction flow of pressure balance hole, promote the quick clearance that enters into elastic sealing ring and seal tube through pressure balance hole in, promote the quick filling fluid in the elastic sealing ring, improve its stability, avoid elastic sealing ring to be because the internal pressure is too little and slope in the in-process of turning into the sealing ring, be difficult to sealed oil pipe.
The elastic blocking ring is made of elastic rubber, the thickness of the elastic blocking ring is gradually increased from the middle to the two ends, the outer surface of the elastic blocking ring is a horizontal plane in a natural state, the maximum thickness of the elastic blocking ring is 2-5mm, and the minimum thickness of the elastic blocking ring is 1/5-1/3 of the maximum thickness.
According to the application, the elastic sealing ring is made of elastic rubber, so that the elastic sealing ring can be better and more tightly attached to the inner wall of the oil pipe when the elastic sealing ring is converted into a sealing ring structure, the sealing performance is better, the middle of the elastic sealing ring is thick, the thicknesses of the two sides of the elastic sealing ring are gradually increased, the middle of the elastic sealing ring is more stable when the elastic sealing ring is converted into the sealing ring, the stability of the sealing ring for sealing the oil pipe is improved, and leakage caused by dumping or deformation of the sealing ring under the action of pressure is avoided.
The pushing mechanism comprises a micro motor and a push rod, the bottom of the micro motor is fixed on a connecting head, the connecting head is connected to the upper end of the inner cavity of the casing, the other end of the micro motor is connected with the push rod, and the push rod converts the rotary motion of the micro motor into linear motion and transmits the linear motion to the transmission mechanism.
The working process of the application is as follows: the micro motor drives the push rod, the push rod converts the rotary motion of the micro motor into linear motion, the push shaft is pushed to the lower end, the push rod mounting joint, the push sleeve and the middle connecting sleeve are pushed to the lower end of the push sleeve, the elastic blocking ring is connected with the push sleeve, the middle of the elastic blocking ring protrudes outwards under the action of pressure to form a sealing ring to seal the inner wall of the oil pipe, after the oil pipe is sealed, liquid in the oil pipe enters the first runner from the liquid inlet, enters the second runner from the liquid outlet lower joint, the flow is detected through the flow detection device in the wire barrel, the flow measurement of the oil pipe is realized, and finally the liquid is discharged through the liquid outlet.
The outer wall of the sealing cylinder is fixed with a first clamping ring, the outer wall of the bottom end of the pushing sleeve is fixed with a second clamping ring, and two ends of the elastic sealing ring are respectively fixed in the first clamping ring and the second clamping ring.
The cable head outer wall is sleeved with a centralizing body, the connector is connected with an adjusting instrument, the adjusting instrument is any one of a pressure gauge, a magnetic positioner, a concentric well adjusting arm and an eccentric well manipulator, and the adjusting instrument can synchronously adjust self parameters according to the flow detected by the flow detection device.
According to the application, the connector is connected with the adjusting instrument through the socket and the circuit board, so that the pressure and flow parameters of the liquid can be synchronously adjusted according to the liquid flow in the oil pipe, the effect of measuring and adjusting simultaneously is achieved, the timeliness is high, the adjusting precision is obviously improved, and the accuracy of controlling the water injection flow of the stratum in the oil field is further improved.
Compared with the prior art, the application has the following advantages and beneficial effects:
1. according to the flowmeter for the oil pipe of the oilfield water injection well, the cable head, the oil pipe full-flow collecting device, the wire passing cylinder and the connector are arranged from top to bottom, the designed oil pipe full-flow collecting device can effectively seal an oil pipe flow channel, inflow liquid is completely led into the flowmeter, the flow is measured by the flow detection device, the measurement accuracy is improved, the flowmeter is particularly suitable for measuring fluid with smaller flow, and the accuracy of oilfield stratum water injection flow control is effectively improved;
2. the elastic sealing ring of the oil pipe full-flow-collecting device is made of elastic rubber, so that the elastic sealing ring can be better and more tightly attached to the inner wall of an oil pipe when the elastic sealing ring is converted into a sealing ring structure, the sealing performance is better, the middle of the elastic sealing ring is thick, the thicknesses of two sides of the elastic sealing ring are gradually increased, the middle of the elastic sealing ring is more stable when the elastic sealing ring is converted into the sealing ring, the stability of the sealing ring for sealing the oil pipe is improved, the sealing ring is prevented from being toppled or deformed under the action of pressure, leakage is avoided, and the flow measurement precision of the oil pipe is further improved.
3. According to the flowmeter for the oil pipe of the oilfield water injection well, the connector is connected with the adjusting instrument through the socket and the circuit board, so that the pressure and flow parameters of liquid can be synchronously adjusted according to the liquid flow in the oil pipe, the effect of measuring and adjusting simultaneously is achieved, the timeliness is high, the adjusting precision is remarkably improved, and the accuracy of oilfield stratum water injection flow control is further improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic diagram of a transmission mechanism of the present application;
FIG. 3 is a schematic view of a sealer of the application.
In the drawings, the reference numerals and corresponding part names:
1-cable head, 11-centralizer, 2-oil pipe full-gathering device, 21-liquid inlet hole, 22-runner I, 23-casing, 24-pushing mechanism, 241-micro motor, 242-push rod, 25-liquid outlet lower connector, 251-liquid outlet hole, 3-wire passing cylinder, 31-flow detection device, 32-runner II, 33-liquid outlet hole, 4-connector, 5-sealer, 51-sealing cylinder, 511-first clasp, 52-elastic sealing ring, 53-sealing ring, 54-pressure balance hole, 6-wire steel pipe, 7-transmission mechanism, 71-pushing sleeve, 711-second clasp, 72-pushing shaft, 73-push rod installation connector, 74-middle connecting sleeve, 741-bar hole, 75-middle connector, 751-limiting hole, 76-fixed connector, 761-guiding ball, 77-annular connecting block, 78-transmission pin, 79-through hole and 8-adjusting instrument.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application.
Example 1
As shown in fig. 1-3, the flowmeter for the oil pipe of the oilfield water injection well comprises a cable head 1, an oil pipe full-flow collecting device 2, a wire passing cylinder 3 and a connector 4 which are sequentially connected from top to bottom, wherein the oil pipe full-flow collecting device 2 is used for sealing and blocking an inner cavity of the oil pipe, a flow detecting device 31 is arranged in the wire passing cylinder 3, and the connector 4 is used for connecting various adjusting instruments.
The oil pipe full current collecting device 2 is provided with a sealer 5, the sealer 5 comprises a sealing cylinder 51 and an elastic blocking ring 52, the elastic blocking ring 52 is cylindrical and sleeved on the periphery of the sealing cylinder 51, and the elastic blocking ring 52 protrudes towards the periphery from the middle under the pushing of the pushing device to form a sealing ring 53 capable of blocking an inner cavity of the oil pipe.
The oil pipe full current collector 2 above the sealer 5 is provided with a liquid inlet 21, the oil pipe full current collector 2 is internally provided with a first runner 22 communicated with the liquid inlet 21, the sealing cylinder 51 is provided with a plurality of pressure balance holes 54, and the pressure balance holes 54 are communicated with the first runner 22 and the gap between the elastic blocking ring 52 and the sealing cylinder 51.
The flow detection device 31 is arranged in the wire passing barrel 3 at the periphery of the first flow passage 22, the flow detection device 31 is an electromagnetic flowmeter, the lower end of the wire passing barrel 3 is provided with a liquid outlet 33, the liquid outlet 33 is communicated with the second flow passage 32, an electric wire steel pipe 6 penetrating through the oil pipe full-flow collecting device 2, the wire passing barrel 3 and the connector 4 is arranged at the axis of the oil pipe full-flow collecting device 2, the wire passing barrel 3 and the connector 4 in a penetrating mode, a signal wire is arranged in the electric wire steel pipe 6, and the top end of the signal wire is connected in the cable head 1.
The oil pipe full current collecting device 2 further comprises a protective cylinder 23, a pushing mechanism 24, a transmission mechanism 7 and a liquid outlet lower joint 25, wherein the top of the protective cylinder 23 is connected with the cable head 1, the pushing mechanism 24 is fixed in the inner cavity of the protective cylinder 23 and pushes the transmission mechanism 7 below to do reciprocating linear motion, the transmission mechanism 7 pushes the elastic blocking ring 52 of the sealer 5 below compression to enable the sealing ring to seal the inner cavity of the oil pipe, the top of the liquid outlet lower joint 25 is connected to the bottom of the sealing cylinder 51, and the bottom of the liquid outlet lower joint is connected with the connector 4.
The transmission mechanism 7 comprises a pushing sleeve 71, one end of the elastic blocking ring 52 is fixed on the outer wall of the sealing cylinder 51, the other end of the elastic blocking ring is fixed on the outer wall of the bottom end of the pushing sleeve 71, and the inner wall of the pushing sleeve 71 is in sliding contact with the outer wall of the sealing cylinder 51.
The transmission mechanism 7 further comprises a pushing shaft 72, a pushing shaft mounting joint 73, an intermediate connecting sleeve 74, an intermediate connecting joint 75 and an intermediate fixing joint 76, the axes of the protecting cylinder 23, the pushing shaft 72, the pushing shaft mounting joint 73, the intermediate connecting sleeve 74, the intermediate connecting joint 75, the intermediate fixing joint 76, the sealing cylinder 51, the elastic blocking ring 52 and the pushing sleeve 71 are all on the same straight line, the pushing shaft mounting joint 73 and the intermediate connecting sleeve 74 are all sleeved on the periphery of the pushing shaft 72, the pushing shaft mounting joint 73, the intermediate connecting sleeve 74 and the intermediate connecting joint 75 are connected end to end, the pushing shaft mounting joint 73 is fixedly connected with the intermediate connecting sleeve 74, the intermediate connecting sleeve 74 is connected with the intermediate connecting joint 75 in a sliding manner, a limiting hole 751 is formed in the upper end of the intermediate connecting joint 75, the bottom end of the pushing shaft 72 is arranged in the limiting hole 751, and the pushing shaft 72 can freely slide in the limiting hole 751.
The middle fixing joint 76 comprises a balance rod, the upper end of the balance rod is fixedly connected with the middle connecting joint 75, the bottom end of the balance rod passes through the sealing cylinder 51 and is connected with the lower liquid outlet joint 25, the inner wall of the upper end of the sealing cylinder 51 is connected with an annular connecting block 77, the annular connecting block 77 is fixedly connected with the outer wall of the upper end of the balance rod, the liquid inlet 21 is arranged on the pushing sleeve 71, the upper end of the middle connecting sleeve 74 is provided with a plurality of strip-shaped holes 741, the upper end of the pushing sleeve 71 is connected with the pushing shaft 72 through a plurality of transmission pins 78, the transmission pins 78 pass through the strip-shaped holes 741, gaps are formed between the inner wall of the pushing sleeve 71 and the middle connecting sleeve 74, the middle connecting joint 75 and the middle fixing joint 76, gaps are formed between the sealing cylinder 51 and the balance rod, through holes 79 are formed in the annular connecting block 77, and the gaps on the through holes 79 and two sides jointly form a first flow passage 22.
Example 2
As shown in fig. 1-3, the flowmeter for the oil pipe of the oilfield water injection well comprises a cable head 1, an oil pipe full-flow collecting device 2, a wire passing cylinder 3 and a connector 4 which are sequentially connected from top to bottom, wherein the oil pipe full-flow collecting device 2 is used for sealing and blocking an inner cavity of the oil pipe, a flow detecting device 31 is arranged in the wire passing cylinder 3, and the connector 4 is used for connecting various adjusting instruments.
The oil pipe full current collecting device 2 is provided with a sealer 5, the sealer 5 comprises a sealing cylinder 51 and an elastic blocking ring 52, the elastic blocking ring 52 is cylindrical and sleeved on the periphery of the sealing cylinder 51, and the elastic blocking ring 52 protrudes towards the periphery from the middle under the pushing of the pushing device to form a sealing ring 53 capable of blocking an inner cavity of the oil pipe.
The oil pipe full current collector 2 above the sealer 5 is provided with a liquid inlet 21, the oil pipe full current collector 2 is internally provided with a first runner 22 communicated with the liquid inlet 21, the sealing cylinder 51 is provided with a plurality of pressure balance holes 54, and the pressure balance holes 54 are communicated with the first runner 22 and the gap between the elastic blocking ring 52 and the sealing cylinder 51.
The flow detection device 31 is arranged in the wire passing barrel 3 at the periphery of the first flow passage 22, the flow detection device 31 is an electromagnetic flowmeter, the lower end of the wire passing barrel 3 is provided with a liquid outlet 33, the liquid outlet 33 is communicated with the second flow passage 32, an electric wire steel pipe 6 penetrating through the oil pipe full-flow collecting device 2, the wire passing barrel 3 and the connector 4 is arranged at the axis of the oil pipe full-flow collecting device 2, the wire passing barrel 3 and the connector 4 in a penetrating mode, a signal wire is arranged in the electric wire steel pipe 6, and the top end of the signal wire is connected in the cable head 1.
The oil pipe full current collecting device 2 further comprises a protective cylinder 23, a pushing mechanism 24, a transmission mechanism 7 and a liquid outlet lower joint 25, wherein the top of the protective cylinder 23 is connected with the cable head 1, the pushing mechanism 24 is fixed in the inner cavity of the protective cylinder 23 and pushes the transmission mechanism 7 below to do reciprocating linear motion, the transmission mechanism 7 pushes the elastic blocking ring 52 of the sealer 5 below compression to enable the sealing ring to seal the inner cavity of the oil pipe, the top of the liquid outlet lower joint 25 is connected to the bottom of the sealing cylinder 51, and the bottom of the liquid outlet lower joint is connected with the connector 4.
The transmission mechanism 7 comprises a pushing sleeve 71, one end of the elastic blocking ring 52 is fixed on the outer wall of the sealing cylinder 51, the other end of the elastic blocking ring is fixed on the outer wall of the bottom end of the pushing sleeve 71, and the inner wall of the pushing sleeve 71 is in sliding contact with the outer wall of the sealing cylinder 51.
The transmission mechanism 7 further comprises a pushing shaft 72, a pushing shaft mounting joint 73, an intermediate connecting sleeve 74, an intermediate connecting joint 75 and an intermediate fixing joint 76, the axes of the protecting cylinder 23, the pushing shaft 72, the pushing shaft mounting joint 73, the intermediate connecting sleeve 74, the intermediate connecting joint 75, the intermediate fixing joint 76, the sealing cylinder 51, the elastic blocking ring 52 and the pushing sleeve 71 are all on the same straight line, the pushing shaft mounting joint 73 and the intermediate connecting sleeve 74 are all sleeved on the periphery of the pushing shaft 72, the pushing shaft mounting joint 73, the intermediate connecting sleeve 74 and the intermediate connecting joint 75 are connected end to end, the pushing shaft mounting joint 73 is fixedly connected with the intermediate connecting sleeve 74, the intermediate connecting sleeve 74 is connected with the intermediate connecting joint 75 in a sliding manner, a limiting hole 751 is formed in the upper end of the intermediate connecting joint 75, the bottom end of the pushing shaft 72 is arranged in the limiting hole 751, and the pushing shaft 72 can freely slide in the limiting hole 751.
The middle fixing joint 76 comprises a balance rod, the upper end of the balance rod is fixedly connected with the middle connecting joint 75, the bottom end of the balance rod passes through the sealing cylinder 51 and is connected with the lower liquid outlet joint 25, the inner wall of the upper end of the sealing cylinder 51 is connected with an annular connecting block 77, the annular connecting block 77 is fixedly connected with the outer wall of the upper end of the balance rod, the liquid inlet 21 is arranged on the pushing sleeve 71, the upper end of the middle connecting sleeve 74 is provided with a plurality of strip-shaped holes 741, the upper end of the pushing sleeve 71 is connected with the pushing shaft 72 through a plurality of transmission pins 78, the transmission pins 78 pass through the strip-shaped holes 741, gaps are formed between the inner wall of the pushing sleeve 71 and the middle connecting sleeve 74, the middle connecting joint 75 and the middle fixing joint 76, gaps are formed between the sealing cylinder 51 and the balance rod, through holes 79 are formed in the annular connecting block 77, and the gaps on the through holes 79 and two sides jointly form a first flow passage 22.
The liquid outlet lower joint 25 is provided with a liquid outlet hole 251, one end of the liquid outlet hole 251 is communicated with the first runner 22, the other end is communicated with the second runner 32, the pressure balance hole 54 is arranged on one side of the sealing cylinder 51, which is close to the pushing sleeve 71, the balance rod is provided with a guide ball 761, the diameter of the guide ball 761 is larger than that of the balance rod, and the guide ball 761 and the pressure balance hole 54 are arranged on the same vertical plane.
The elastic blocking ring 52 is made of elastic rubber, the thickness of the elastic blocking ring 52 is gradually increased from the middle to the two ends, the outer surface of the elastic blocking ring 52 in a natural state is a horizontal plane, the maximum thickness of the elastic blocking ring 52 is 2-5mm, and the minimum thickness is 1/5-1/3 of the maximum thickness.
The pushing mechanism 24 comprises a micro motor 241 and a push rod 242, the bottom of the micro motor 241 is fixed on a connector 4, the connector 4 is connected to the upper end of the inner cavity of the casing 23, the other end of the micro motor 241 is connected with the push rod 242, and the push rod 242 converts the rotary motion of the micro motor 241 into linear motion and transmits the linear motion to the transmission mechanism 7.
The outer wall of the sealing cylinder 51 is fixed with a first clamping ring 511, the outer wall of the bottom end of the pushing sleeve 71 is fixed with a second clamping ring 711, and two ends of the elastic sealing ring 53 are respectively fixed in the first clamping ring 511 and the second clamping ring 711.
The cable head 1 outer wall is gone up the cover and is equipped with a righting body 11, the connector 4 is connected with adjusting instrument 8, adjusting instrument 8 is any one of manometer, magnetic positioner, concentric well regulating arm and eccentric well manipulator, and adjusting instrument 8 can be according to the synchronous self parameter of adjusting of flow that flow detection device 31 detected.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (7)
1. The flowmeter for the oil pipe of the oilfield water injection well is characterized by comprising a cable head (1), an oil pipe full-current collecting device (2), a wire passing cylinder (3) and a connector (4) which are sequentially connected from top to bottom, wherein the oil pipe full-current collecting device (2) is used for sealing and blocking an inner cavity of the oil pipe, and a flow detection device (31) is arranged in the wire passing cylinder (3);
the oil pipe full current collecting device (2) is provided with a sealer (5), the sealer (5) comprises a sealing cylinder (51) and an elastic blocking ring (52), the elastic blocking ring (52) is cylindrical and sleeved on the periphery of the sealing cylinder (51), and the elastic blocking ring (52) protrudes towards the periphery from the middle under the pushing of the pushing device to form a sealing ring (53) capable of blocking an inner cavity of the oil pipe;
a liquid inlet hole (21) is formed in the oil pipe full current collecting device (2) above the sealer (5), a first flow channel (22) communicated with the liquid inlet hole (21) is formed in the oil pipe full current collecting device (2), a plurality of pressure balance holes (54) are formed in the sealing cylinder (51), and the pressure balance holes (54) are communicated with the first flow channel (22) and gaps between the elastic blocking ring (52) and the sealing cylinder (51);
the utility model discloses a cable head, including a cable head, a cable pipe (1), a cable pipe, a flow detection device (31), a flow detection device, a flow meter, a flow pipe, a line section of thick bamboo (3) is equipped with a runner second (32) with runner first (22) intercommunication in, flow detection device (31) set up in the line section of thick bamboo (3) of crossing of runner second (32) periphery, line section of thick bamboo (3) lower extreme is equipped with a play liquid hole (33), play liquid hole (33) and runner second (32) intercommunication, wears to establish a wire steel pipe (6) of running through three in the axis department of oil pipe total current collector (2), line section of thick bamboo (3) and connector (4), is provided with the signal line in wire steel pipe (6), and the signal line top is connected in cable head (1).
2. The flowmeter for the oil pipe of the oilfield water injection well according to claim 1, wherein the oil pipe full flow collecting device (2) further comprises a protective cylinder (23), a pushing mechanism (24), a transmission mechanism (7) and a liquid outlet lower joint (25), the top of the protective cylinder (23) is connected with the cable head (1), the pushing mechanism (24) is fixed in the inner cavity of the protective cylinder (23) and pushes the transmission mechanism (7) below to do reciprocating linear motion, the transmission mechanism (7) pushes the elastic blocking ring (52) of the sealer (5) below compression to enable the elastic blocking ring to seal the inner cavity of the oil pipe, the top end of the liquid outlet lower joint (25) is connected to the bottom of the sealing cylinder (51), and the bottom end of the liquid outlet lower joint (25) is connected with the connector (4).
3. A flowmeter for oilfield injection well tubing according to claim 2, wherein the transmission mechanism (7) comprises a push sleeve (71), one end of the elastic blocking ring (52) is fixed on the outer wall of the sealing cylinder (51), the other end is fixed on the outer wall of the bottom end of the push sleeve (71), and the inner wall of the push sleeve (71) is in sliding contact with the outer wall of the sealing cylinder (51).
4. A flowmeter for oilfield injection well tubing according to claim 3, wherein the transmission mechanism (7) further comprises a pushing shaft (72), a push rod mounting joint (73), an intermediate connecting sleeve (74), an intermediate connecting joint (75) and an intermediate fixing joint (76), the axes of the protecting cylinder (23), the pushing shaft (72), the push rod mounting joint (73), the intermediate connecting sleeve (74), the intermediate connecting joint (75), the intermediate fixing joint (76), the sealing cylinder (51), the elastic blocking ring (52) and the pushing sleeve (71) are all on the same straight line, the push rod mounting joint (73) and the intermediate connecting sleeve (74) are all sleeved on the periphery of the pushing shaft (72), and the push rod mounting joint (73), the intermediate connecting sleeve (74) and the intermediate connecting sleeve (75) are connected end to end, wherein the push rod mounting joint (73) and the intermediate connecting sleeve (74) are fixedly connected, the intermediate connecting sleeve (74) and the intermediate connecting sleeve (75) are connected in a sliding manner, a limiting hole (751) is formed in the upper end of the intermediate connecting sleeve (75), and the bottom end of the pushing shaft (72) is placed in the limiting hole (751).
5. The flowmeter for oil pipes of oilfield water injection wells according to claim 4, wherein the middle fixing joint (76) comprises a balance bar, the upper end of the balance bar is fixedly connected with the middle joint (75), the bottom end of the balance bar passes through the sealing cylinder (51) and is connected with the lower liquid joint (25), the inner wall of the upper end of the sealing cylinder (51) is connected with an annular connecting block (77), the annular connecting block (77) is fixedly connected with the outer wall of the upper end of the balance bar, the liquid inlet hole (21) is formed in the pushing sleeve (71), a plurality of strip-shaped holes (741) are formed in the upper end of the middle connecting sleeve (74), the upper end of the pushing sleeve (71) is connected with the pushing shaft (72) through a plurality of transmission pins (78), the transmission pins (78) penetrate through the strip-shaped holes (741), gaps are formed between the inner wall of the pushing sleeve (71) and the middle connecting sleeve (74), the middle joint (75) and the middle fixing joint (76), gaps are formed between the sealing cylinder (51) and the balance bar, the annular connecting block (77) is provided with through holes (79), and the gaps on two sides form a runner (22) together.
6. The flowmeter for oil pipes of oilfield water injection wells according to claim 5, wherein the liquid outlet lower joint (25) is provided with a liquid outlet hole (251), one end of the liquid outlet hole (251) is communicated with the first runner (22) and the other end of the liquid outlet hole is communicated with the second runner (32), the pressure balance hole (54) is arranged on one side of the sealing cylinder (51) close to the pushing sleeve (71), the balance rod is provided with a guide ball (761), the diameter of the guide ball (761) is larger than that of the balance rod, the guide ball (761) and the pressure balance hole (54) are arranged on the same vertical plane, the thickness of the elastic seal ring (52) is made of elastic rubber, the thickness of the elastic seal ring (52) is gradually increased from the middle to the two ends, the outer surface of the elastic seal ring (52) is a horizontal plane in a natural state, the maximum thickness of the elastic seal ring (52) is 2-5mm, and the minimum thickness is 1/5-1/3 of the maximum thickness.
7. The flowmeter for the oil pipe of the oilfield water injection well according to claim 1, wherein a centralizing body (11) is sleeved on the outer wall of the cable head (1), the connector (4) is connected with an adjusting instrument (8), the adjusting instrument (8) is any one of a pressure gauge, a magnetic positioner, a concentric well adjusting arm and an eccentric well manipulator, and the adjusting instrument (8) can synchronously adjust self parameters according to the flow detected by the flow detection device (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518437.9A CN109723425B (en) | 2018-12-12 | 2018-12-12 | Flowmeter for oil pipe of oilfield water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518437.9A CN109723425B (en) | 2018-12-12 | 2018-12-12 | Flowmeter for oil pipe of oilfield water injection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109723425A CN109723425A (en) | 2019-05-07 |
| CN109723425B true CN109723425B (en) | 2023-08-18 |
Family
ID=66295343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811518437.9A Active CN109723425B (en) | 2018-12-12 | 2018-12-12 | Flowmeter for oil pipe of oilfield water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109723425B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206350Y (en) * | 1994-10-21 | 1995-08-30 | 大港石油管理局测井公司 | Electric metal umbrella type flow collector |
| CN2538959Y (en) * | 2002-03-14 | 2003-03-05 | 中国石油天然气股份有限公司 | Underground separate-layer water injection testing device |
| CN101705812A (en) * | 2009-11-17 | 2010-05-12 | 中国海洋石油总公司 | Large-discharge single pipe layered polymer injection and injection allocation method and device |
| CN201865618U (en) * | 2010-11-30 | 2011-06-15 | 王瑞民 | Anti-splashing collector of oil pipe |
| CN102767359A (en) * | 2012-07-20 | 2012-11-07 | 中国石油天然气股份有限公司 | Volume accumulation type low-yield liquid oil well three-phase flow measuring device |
| CN103244098A (en) * | 2013-04-02 | 2013-08-14 | 中国石油天然气股份有限公司 | Low-injection-allocation-quantity water injection well layered flow tester |
| CN105507808A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Underground drilling tool motor |
| CN105709622A (en) * | 2016-01-29 | 2016-06-29 | 北京航空航天大学 | Small ejector and particulate matter dilution acquisition system |
| CN205638334U (en) * | 2016-05-22 | 2016-10-12 | 田茂文 | Oily ware is received to oil pumping motor -pumped well well head oil strain |
| CN108166958A (en) * | 2017-12-26 | 2018-06-15 | 四川省科学城久利电子有限责任公司 | A kind of shunting intelligent watering device for oil field big flow water filling |
| CN108643885A (en) * | 2018-05-10 | 2018-10-12 | 中国石油天然气股份有限公司 | Current collector and current collector system using same |
| CN108729892A (en) * | 2018-05-23 | 2018-11-02 | 四川省科学城久利电子有限责任公司 | A kind of flowmeter for oil field injection well tune when surveying |
-
2018
- 2018-12-12 CN CN201811518437.9A patent/CN109723425B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206350Y (en) * | 1994-10-21 | 1995-08-30 | 大港石油管理局测井公司 | Electric metal umbrella type flow collector |
| CN2538959Y (en) * | 2002-03-14 | 2003-03-05 | 中国石油天然气股份有限公司 | Underground separate-layer water injection testing device |
| CN101705812A (en) * | 2009-11-17 | 2010-05-12 | 中国海洋石油总公司 | Large-discharge single pipe layered polymer injection and injection allocation method and device |
| CN201865618U (en) * | 2010-11-30 | 2011-06-15 | 王瑞民 | Anti-splashing collector of oil pipe |
| CN102767359A (en) * | 2012-07-20 | 2012-11-07 | 中国石油天然气股份有限公司 | Volume accumulation type low-yield liquid oil well three-phase flow measuring device |
| CN103244098A (en) * | 2013-04-02 | 2013-08-14 | 中国石油天然气股份有限公司 | Low-injection-allocation-quantity water injection well layered flow tester |
| CN105507808A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Underground drilling tool motor |
| CN105709622A (en) * | 2016-01-29 | 2016-06-29 | 北京航空航天大学 | Small ejector and particulate matter dilution acquisition system |
| CN205638334U (en) * | 2016-05-22 | 2016-10-12 | 田茂文 | Oily ware is received to oil pumping motor -pumped well well head oil strain |
| CN108166958A (en) * | 2017-12-26 | 2018-06-15 | 四川省科学城久利电子有限责任公司 | A kind of shunting intelligent watering device for oil field big flow water filling |
| CN108643885A (en) * | 2018-05-10 | 2018-10-12 | 中国石油天然气股份有限公司 | Current collector and current collector system using same |
| CN108729892A (en) * | 2018-05-23 | 2018-11-02 | 四川省科学城久利电子有限责任公司 | A kind of flowmeter for oil field injection well tune when surveying |
Non-Patent Citations (1)
| Title |
|---|
| 陈军.防止HXD1、HXD2型电力机车辅助风机反转的探讨.科技与创新.2014,(020),48. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109723425A (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105699688B (en) | Device and method for measuring flow velocity and flow of fluid | |
| CN109723425B (en) | Flowmeter for oil pipe of oilfield water injection well | |
| CN101349581B (en) | Insert type flow measuring device based on MEMS sensor | |
| CN206708478U (en) | A kind of integrated form flow equilibrium measuring unit | |
| CN201262559Y (en) | Plug-in flow measuring device based on MEMS sensor | |
| CN106525173B (en) | A kind of range seamless switching flow measurement device | |
| CN201991522U (en) | Piston pressure sensor | |
| CN208567986U (en) | A kind of flowmeter | |
| CN216385818U (en) | Flowmeter with pipe diameter detection function | |
| CN209704544U (en) | Flowmeter suitable for oil pipeline | |
| CN204312051U (en) | Take downhole flow testing arrangement of protection machanism | |
| CN209495738U (en) | A kind of natural gas swirl flowmeter | |
| CN2294458Y (en) | Loose leaves type flow rater meter | |
| CN204730917U (en) | Dual flow calibration weighing system | |
| CN210321847U (en) | Venturi flow meter | |
| CN103900649B (en) | Electromagnetic flow transducer for downhole water flow regulator | |
| CN102095359B (en) | Force balance type transmitter of strain type displacement detecting element | |
| CN110361062B (en) | High maintenance type right-angle electromagnetic flowmeter | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| CN202002662U (en) | Force balanced type transmitter for strain displacement detecting elements | |
| CN201417156Y (en) | Integrated mass flow meter | |
| CN208348716U (en) | A kind of temperature, pressure on-line testing and calibration multifunction conjunction | |
| CN202510109U (en) | Pressing device of oil-water well | |
| CN110987092A (en) | Multiphase flow vortex shedding flowmeter in pit | |
| CN219368821U (en) | Flow testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |