CN113758693A - Experimental device for testing key components of rotary borehole wall coring apparatus - Google Patents
Experimental device for testing key components of rotary borehole wall coring apparatus Download PDFInfo
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- CN113758693A CN113758693A CN202110932339.5A CN202110932339A CN113758693A CN 113758693 A CN113758693 A CN 113758693A CN 202110932339 A CN202110932339 A CN 202110932339A CN 113758693 A CN113758693 A CN 113758693A
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- 238000012360 testing method Methods 0.000 title claims abstract description 96
- 230000007704 transition Effects 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000003921 oil Substances 0.000 claims description 83
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention relates to an experimental device for testing key components of a rotary sidewall coring apparatus, which comprises: a first sealed chamber, the first sealed housing comprising: the hydraulic pump is arranged in the first chamber shell and is used for driving the motor to rotate; the external joint component is hermetically connected to the left end of the first cavity shell, and an oil filling hole and a wiring hole which are communicated with the inside of the first cavity shell are formed in the external joint component; and the transition joint assembly is connected to the right end of the first cavity shell in a sealing mode, an oil outlet and an oil return hole are formed in the transition joint assembly, the oil outlet is communicated with the oil outlet end of the hydraulic pump through a connecting pipe, a backflow assembly is arranged on the right side of the transition joint assembly, and a flow channel communicated with the oil outlet and the oil return hole is formed in the backflow assembly. The experimental device can simplify the structure of the testing device, is suitable for simulation test in a laboratory, greatly shortens the testing period and greatly reduces the testing cost.
Description
Technical Field
The invention belongs to the field of petroleum equipment testing, and particularly relates to an experimental device for testing key components of a rotary borehole wall coring apparatus.
Background
With the rapid development of industries such as petroleum, natural gas and the like, the application of the rotary well wall coring instrument is more and more extensive, and the rotary well wall coring instrument is more and more favored in the industries. However, with the increasingly harsh working environments of land and marine exploration wells, the severe environments of deep wells, high temperature (210 ℃), high pressure (140MPa), and the like have become common working conditions for rotary well wall coring at present. At present, the performance of the domestic borehole wall coring equipment is still unstable when the domestic borehole wall coring equipment is used for dealing with the working condition, the reliability is low, faults occur frequently, particularly key components such as a motor, a hydraulic pump, a hydraulic motor and the like, the faults occur frequently, but no feasible test scheme which can be completed in a laboratory exists at present, simulation test can be performed only in a high-temperature high-pressure well, the high-temperature high-pressure well is unique experimental equipment, the cost is high, the experimental period is long, the cost expenses in all aspects such as disassembly, transportation, transition, field operation and the like of the equipment are high, and therefore the problems that the testing time is uncontrollable, the product development period is prolonged and the like are caused.
Disclosure of Invention
In order to solve all or part of the problems, the invention aims to provide the test device for testing the key components of the rotary borehole wall coring apparatus, so that the structure of the test device is simplified, the test device can be suitable for simulation test in a laboratory, the risk of construction through a well site is effectively reduced, the test period is greatly shortened, the test cost is greatly reduced, and the development period is accelerated.
The invention provides an experimental device for testing key components of a rotary sidewall coring apparatus, which comprises a first sealing cavity, wherein the first sealing cavity comprises: the hydraulic pump is arranged in the first chamber shell and is used for driving the motor to rotate; the external joint component is hermetically connected to the left end of the first cavity shell, and an oil filling hole and a wiring hole which are communicated with the inside of the first cavity shell are formed in the external joint component; and the transition joint assembly is connected to the right end of the first cavity shell in a sealing mode, an oil outlet and an oil return hole are formed in the transition joint assembly, the oil outlet is communicated with the oil outlet end of the hydraulic pump through a connecting pipe, a backflow assembly is arranged on the right side of the transition joint assembly, and a flow channel communicated with the oil outlet and the oil return hole is formed in the backflow assembly. The motor is located on the left side of the hydraulic pump and is close to the external connector assembly, the oil injection hole is used for injecting hydraulic oil into the first cavity shell, and the wiring hole is used for electrically connecting the motor with an external driving device.
Further, the external joint assembly comprises an external joint, a double female joint and a first transition joint which are sequentially and hermetically connected, the first transition joint is connected with a sealing thread at the left end of the first cavity shell, a pressure-bearing joint is respectively and hermetically arranged between the external joint and the double female joint and between the first transition joint and the double female joint, and a connecting wire of the motor sequentially penetrates through the inside of the first transition joint, the pressure-bearing joint, the double female joint, the pressure-bearing joint and the external joint and is connected with an external driving device.
Further, the external joint assembly further comprises: the quick-turn nuts are sleeved between the external connector and the double female connector and between the first transition connector and the double female connector, and the external connector and the first transition connector are in threaded connection with the double female connector through the quick-turn nuts; and the clamp springs are arranged in the external joints and used for fixing the pressure-bearing joints, and the two pressure-bearing joints are respectively fixed in the external joints and the first transition joint through the clamp springs.
Furthermore, the experimental device for testing the key components of the rotating sidewall coring instrument further comprises a first heating device, wherein the first heating device is wound on the peripheral wall of the first cavity shell and used for heating liquid in the first cavity shell.
Furthermore, the experimental device for testing the key components of the rotating sidewall coring instrument further comprises a temperature sensor and a pressure sensor, wherein the temperature sensor and the pressure sensor are arranged in the first cavity shell and are positioned between the hydraulic pump and the transition joint assembly.
Further, the transition joint assembly comprises a second transition joint, the left end of the second transition joint is in sealing threaded connection with the right end of the first chamber shell, and the oil outlet hole and the oil return hole are formed in the second transition joint at intervals along the axial direction of the second transition joint. Wherein, be formed with pressure chamber in the second transition connects, the left side and the first cavity casing of pressure chamber are linked together, and the right side of second transition joint of pressure chamber are linked together, are provided with balanced piston in the pressure chamber, and balanced piston sets to can not break away from the pressure chamber.
Further, the backflow component comprises a first sub oil pipe, a backflow part and a second sub oil pipe which are sequentially connected, the experimental device for testing the key components of the rotating borehole wall coring instrument further comprises a second sealing cavity, wherein the second sealing cavity comprises: the left end of the second chamber shell is in threaded sealing connection with the right end of the second transition joint, the right side of the pressure cavity is communicated with the inside of the second chamber shell, and the backflow assembly is arranged in the second chamber shell; and the plugging end cover is in sealing threaded connection with the right end of the second chamber shell, two communicating holes are formed in the plugging end cover, and the two communicating holes are respectively used for setting a pressure gauge and inputting high-pressure media. Wherein, oil outlet, first sub oil pipe, backward flow portion, second sub oil pipe, oil return hole communicate in proper order.
Further, the return portion is provided as a throttle valve or a hydraulic motor.
Furthermore, the experimental device for testing the key components of the rotating sidewall coring instrument further comprises a second heating device, and the second heating device is wound on the peripheral wall of the second cavity shell and used for heating liquid in the second cavity shell.
Further, the backward flow subassembly includes first sub-oil pipe and second sub-oil pipe, and rotatory wall of a well coring appearance key parts test still includes with experimental apparatus: the fixing frame is fixedly connected to the right end of the second transition joint, and the right end of the fixing frame is used for fixing the hydraulic motor; and the eddy current brake is used for being connected with the hydraulic motor, wherein the first oil pipe is used for communicating the oil outlet hole and the oil inlet hole of the hydraulic motor, and the second oil pipe is used for communicating the oil outlet hole and the oil return hole of the hydraulic motor.
Compared with the prior art, the experimental device for testing the key components of the rotary borehole wall coring apparatus has the advantages that the whole structure is simple, the size is small, the testing of main power components and executive components such as the motor and the hydraulic pump can be completed in a laboratory under a simulated high-pressure environment, the risk of construction through a well site can be effectively eliminated, the testing period can be greatly shortened, the testing cost is greatly reduced, and the development period is shortened.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of an experimental device for testing key components of a rotary sidewall coring apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of an experimental device for testing key components of a rotary sidewall coring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of an experimental device for testing key components of a rotating sidewall coring apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of the external connector assembly shown in FIGS. 1-3;
FIG. 5 is an enlarged view of the structure shown at A in FIG. 1;
fig. 6 is a schematic structural view of the blocking end cap shown in fig. 1 and 2.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following describes an experimental device for testing key components of a rotating sidewall coring apparatus in further detail with reference to the accompanying drawings.
Fig. 1 to 3 are schematic structural diagrams illustrating different embodiments of an experimental device for testing key components of a rotary sidewall coring apparatus according to an embodiment of the present invention. Referring to fig. 1 and 5, an embodiment of the present invention provides an experimental apparatus 100 for testing key components of a rotating sidewall coring apparatus, including a first sealed chamber 10, where the first sealed chamber 10 includes: a first chamber housing 11, the first chamber housing 11 being provided therein with a motor 30 and a hydraulic pump 40 connected to the motor 30; the external joint assembly 50 is connected to the left end of the first chamber shell 11 in a sealing mode, and an oil filling hole 12 and a wiring hole 13 which are communicated with the inside of the first chamber shell 11 are formed in the external joint assembly 50; and a transition joint assembly 60, the transition joint assembly 60 is hermetically connected to the right end of the first chamber housing 11, an oil outlet 14 and an oil return hole (not shown) are formed on the transition joint assembly 60, the oil outlet 14 is communicated with the oil outlet end of the hydraulic pump 40 through a connecting pipe 15, a return flow assembly 16 is arranged on the right side of the transition joint assembly 60, and a flow passage communicating the oil outlet 14 and the oil return hole is formed in the return flow assembly 16. The motor 30 is located on the left side of the hydraulic pump 40 and is disposed close to the external connector assembly 50, the oil injection hole 12 is used for injecting hydraulic oil into the first chamber housing 11, and the wiring hole 13 is used for electrically connecting the motor 30 with an external driving device.
References to left and right in this application are to be understood as referring to left and right directions as shown in figures 1-3 (with the accompanying figures 1-3 all shown rotated 90 to the right, and references to left and right in this application are to be understood as referring to up and down directions as shown in figures 1-3, in accordance with the illustrations of figures 1-3). The external driving device mentioned in this application can be understood as a driving control box 80 connected to the external power source 70, and an operator can control the external driving device to start, stop and regulate the speed of the motor 30. The present application refers to the arrangement of the motor 30 and the hydraulic pump 40 only when testing the motor 30 and the hydraulic pump 40, and it should be understood that the present application is capable of performing performance tests on other power components and actuators.
In the test experiment device 100 for the key parts of the rotary sidewall coring apparatus, in the process of testing a hydraulic power system, the motor 30 and the hydraulic pump 40 are connected and installed with the test experiment device 100 for the key parts of the rotary sidewall coring apparatus, namely, the motor 30 is fixed in the first chamber shell 11 through a motor 30 mounting seat and is electrically connected with an external driving device, the hydraulic pump 40 is connected with the right side of the motor 30, and meanwhile, an oil outlet hole 14 formed in the transition joint assembly 60 is connected with an oil outlet hole of the hydraulic pump 40 through a connecting pipe 15. Hydraulic oil is then injected into the first seal chamber 10 through the oil filler hole 12. After the test system is connected, the motor 30 is started by controlling the driving device to be started, and simultaneously the hydraulic pump 40 is driven to rotate. The hydraulic pump 40 is capable of pumping hydraulic oil into the return assembly 16 through the connecting tube 15 and returning the oil into the first seal chamber 10. Through the arrangement, no-load and load operation tests can be carried out on the power system consisting of the motor 30 and the hydraulic pump 40.
Through the contrast with prior art, prior art only can test at high temperature high pressure test well, and the test cost is higher, and the test cost reaches 5 ten thousand yuan/day a day, and test device is with high costs, consumes manpower and materials comparatively many, once experimental period length. The performance of the high-temperature high-pressure rotary borehole wall coring apparatus is not stable, rapid and repeated testing is needed, the testing cost is very high, the equipment needs to be transported, loaded, unloaded and transferred in the whole testing process, and the period is very long. Through the arrangement, the experimental device 100 for testing the key components of the rotating borehole wall coring apparatus has the advantages of simple overall structure and small volume, and can complete testing of main power components and executive elements such as the motor 30, the hydraulic pump 40 and the like in a simulated high-pressure environment in a laboratory, so that the risk of construction through a well site can be effectively eliminated, the testing period can be greatly shortened, the testing cost is greatly reduced, and the development period is shortened.
In the preferred embodiment shown in fig. 1 to 3, the external joint assembly 50 may include an external joint 501, a double female joint 502 and a first transition joint 503, which are sequentially and hermetically connected, the first transition joint 503 forms a sealed threaded connection with the left end of the first chamber housing 11, pressure-bearing joints 504 are respectively and hermetically arranged between the external joint 501 and the double female joint 502 and between the first transition joint 503 and the double female joint 502, and connection lines of the motor 30 sequentially pass through the interiors of the first transition joint 503, the pressure-bearing joints 504, the double female joint 502, the pressure-bearing joints 504 and the external joint 501 to be connected with an external driving device. Through the arrangement, on one hand, the connection of each joint can enable each part to be conveniently disassembled and assembled; on the other hand, the pressure-bearing joint 504 is further arranged, through the arrangement, the experimental device 100 for testing the key components of the rotating sidewall coring apparatus in the embodiment of the invention can be applied to the test in a high-pressure environment, and through the arrangement of the pressure-bearing joint 504, the pressure in the first sealing chamber 10 is not influenced by the external high pressure, so that the whole test process is more accurate. Meanwhile, through the arrangement, the test environment of the experimental device 100 for testing the key components of the rotating borehole wall coring apparatus in the embodiment of the invention is more flexible, and is less influenced by external factors.
In a preferred embodiment shown in fig. 1-4, the external joint assembly 50 may further include: the quick-turning nuts 505 are sleeved between the external connector 501 and the double female connector 502 and between the first transition connector 503 and the double female connector 502, and the external connector 501 and the first transition connector 503 are in threaded connection with the double female connector 502 through the quick-turning nuts 505; and the clamp springs 506 are arranged in the external joint 501 and used for fixing the pressure-bearing joints 504, and the two pressure-bearing joints 504 are respectively fixed in the external joint 501 and the first transition joint 503 through the clamp springs 506. Through this setting, can further improve the convenience of dismantling and installing between each part through the selection of each mounting.
In the preferred embodiment shown in fig. 1 to 3, the experimental device 100 for testing key components of a rotating sidewall coring apparatus may further include a first heating device 17, and the first heating device 17 is wound around the outer peripheral wall of the first chamber housing 11 and is used for heating the liquid in the first chamber housing 11. The heating means mentioned in the present application may be an electrical heating tape. With this arrangement, the first chamber housing 11 can be heated by the electric heating tape to raise the temperature of the liquid in the first chamber housing 11. In this test environment, the first sealed chamber 10 forms a high-temperature and high-pressure test environment, so that the motor 30 and the hydraulic pump 40 assembly can be independently tested for high-temperature and high-pressure no-load and load.
In the preferred embodiment shown in fig. 1-3, the experimental apparatus 100 for testing key components of a rotating sidewall coring apparatus may further comprise a temperature sensor 18 and a pressure sensor 19, the temperature sensor 18 and the pressure sensor 19 being disposed within the first chamber housing 11 and between the hydraulic pump 40 and the transition joint assembly 60 for performing temperature and pressure tests on the first seal chamber 10. This also enables corresponding adjustments to be made to simulate actual operating temperatures and pressures as required by the test.
In the preferred embodiment shown in fig. 1 to 3, the transition joint assembly 60 may include a second transition joint 21, a left end of the second transition joint 21 is sealingly and threadedly coupled to a right end of the first chamber housing 11, and the oil outlet hole 14 and the oil return hole (not shown) are formed in the second transition joint 21 at intervals in an axial direction of the second transition joint 21. Wherein, a pressure chamber 211 is formed in the second transition joint 21, the left side of the pressure chamber 211 is communicated with the inside of the first chamber housing 11, the right side of the pressure chamber 211 is communicated with the right side of the second transition joint 21, a balance piston 212 is arranged in the pressure chamber 211, and the balance piston 212 is set to be not separated from the pressure chamber 211.
The balance piston 212 is arranged in the non-detachable pressure chamber 211 in the present application, which means that two ends of the pressure chamber 211 should be provided with the retaining rings 213 capable of limiting the position of the balance piston 212 to ensure that the balance piston 212 is not detachable from the pressure chamber 211 during the movement. References to the balance piston 212 in this application should also be understood to include the relief valve 214 disposed thereon. Through the arrangement, the experimental device 100 for testing the key components of the rotating sidewall coring apparatus in the embodiment of the invention can adjust the pressure in the first sealed chamber 10 through the balance piston 212, so as to perform corresponding adjustment according to the testing requirement and simulate the actual working pressure.
In a preferred embodiment, the backflow component 16 may include a first sub-oil pipe 161, a backflow part 23 and a second sub-oil pipe 162 connected in sequence, and the experimental device 100 for testing key components of the rotary sidewall core instrument further includes a second sealed chamber 20. Wherein the second sealed chamber 20 comprises: the left end of the second chamber shell 22 is in threaded sealing connection with the right end of the second transition joint 21, the right side of the pressure chamber 211 is communicated with the inside of the second chamber shell 22, and the backflow component 16 is arranged in the second chamber shell 22; and a plugging end cover 24 (shown in fig. 1, 2 and 6), wherein the plugging end cover 24 is connected to the right end of the second chamber housing 22 in a sealing and threaded manner, two communication holes 241 are formed in the plugging end cover 24, and the two communication holes 241 are respectively used for arranging a pressure gauge 25 and inputting high-pressure media. The oil outlet 14, the first sub-oil pipe 161, the return portion 23, the second sub-oil pipe 162, and an oil return hole (not shown) are sequentially communicated. Further, the return portion 23 may be configured as a throttle 231 (the second embodiment of the experimental apparatus for testing key components of a rotating sidewall core instrument according to the present invention shown in fig. 2) or a hydraulic motor 232 (the first embodiment of the experimental apparatus for testing key components of a rotating sidewall core instrument according to the present invention shown in fig. 1). Preferably, the experimental device 100 for testing key components of the rotating sidewall coring apparatus may further include a second heating device 27, and the second heating device 27 is wound around the outer circumferential wall of the second chamber housing 22 and is configured to heat the liquid in the second chamber housing 22.
The first sub oil pipe 161 and the second sub oil pipe 162 in the present application may be selected from hydraulic hoses or metal pipes. In the present application, in the second embodiment of the experimental apparatus for testing key components of a rotating sidewall coring apparatus of the present invention shown in fig. 2, when the backflow portion 23 is the throttle 231, the no-load and load operation tests of the power system formed by the motor 30 and the hydraulic pump 40 in a high-temperature and high-pressure environment can be realized by adjusting the opening degree of the throttle 231. In the first embodiment of the experimental apparatus for testing key components of the rotating sidewall coring apparatus shown in fig. 1, when the backflow portion 23 is the hydraulic motor 232, in a specific test, the oil outlet 14, the first sub-oil pipe 161, the hydraulic motor 232, the second sub-oil pipe 162, and the oil return hole (not shown in the figure) are sequentially communicated with each other in combination with the above description. By controlling the drive means to be on, the motor 30 is started and simultaneously the hydraulic pump 40 is rotated. The hydraulic pump 40 is capable of pumping hydraulic oil through the connecting tube 15 into the oil line 16 and into the hydraulic motor 232, driving the hydraulic motor 232 to rotate. Through this setting, can realize carrying out high temperature no-load test to hydraulic motor 232. After the test system is connected, the test system is connected with an external high-pressure water source 26 through a plugging end cover 24, so that high-pressure liquid is filled in the second sealed chamber 20, the first sealed chamber 10 and the second sealed chamber 20 can keep pressure balance through a balance piston 212, the pressure on the two sides can be adjusted according to test requirements, and actual working pressure is simulated. Through this setting, can realize carrying out the unloaded test of high temperature high pressure to hydraulic motor 232. In addition, through the combination of the first sealed chamber 10 and the second sealed chamber 20, it is also possible to perform a high temperature pressure balance test on the hydraulic power system composed of the electric motor 30, the hydraulic pump 40 and the hydraulic motor 232, and perform a high temperature and high pressure balance test on the hydraulic power system composed of the electric motor 30, the hydraulic pump 40 and the hydraulic motor 232.
In a third embodiment of the experimental apparatus for testing key components of a rotating sidewall core instrument according to the present invention as shown in fig. 3, the backflow component 16 may include a first sub-oil pipe 161 and a second sub-oil pipe 162, and the experimental apparatus 100 for testing key components of a rotating sidewall core instrument may further include: the fixing frame 28 is fixedly connected to the right end of the second transition joint 21, and the right end of the fixing frame 28 is used for fixing the hydraulic motor 232; and an eddy current brake 90 for connection to the hydraulic motor 232. The first sub oil pipe 161 is used to communicate the oil outlet 14 with the oil inlet of the hydraulic motor 232, and the second sub oil pipe 162 is used to communicate the oil outlet and the oil return (not shown) of the hydraulic motor 232.
The hydraulic motors 232 mentioned in this application are all fixedly connected with the fixing frame 28 through the motor fixing seats. In this embodiment, the second chamber housing 22 on the right is removed and the hydraulic motor 232 is connected to the eddy current brake 90. In the rotation process of the hydraulic motor 232, resistance is provided for the hydraulic motor 232 through the eddy current brake 90, and the hydraulic power formed by the motor 30, the hydraulic pump 40 and the hydraulic motor 232 and the variable load operation test of the execution system can be realized.
It should be noted that the sealing of the threaded connection mentioned in the present application includes sealing with a sealing ring at the threaded connection.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
In the description of the present application, it is to be understood that the terms "left", "right", "inside", "outside", "axial", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides an experimental apparatus is used in test of rotatory wall of a well coring appearance key component which characterized in that, includes first sealed cavity, first sealed cavity includes:
the hydraulic pump comprises a first chamber shell, a second chamber shell and a hydraulic pump, wherein the first chamber shell is internally used for arranging a motor and the hydraulic pump connected with the motor;
the external joint component is connected to the left end of the first cavity shell in a sealing mode, and an oil filling hole and a wiring hole which are communicated with the inside of the first cavity shell are formed in the external joint component; and
the transition joint assembly is connected to the right end of the first cavity shell in a sealing mode, an oil outlet and an oil return hole are formed in the transition joint assembly, the oil outlet is communicated with the oil outlet end of the hydraulic pump through a connecting pipe, a backflow assembly is arranged on the right side of the transition joint assembly, and a flow passage communicated with the oil outlet and the oil return hole is formed in the backflow assembly;
wherein, the motor is located the left side of hydraulic pump just is close to external joint subassembly sets up, the oil filler point be used for to inject hydraulic oil into in the first cavity casing, the wiring hole is used for the motor is connected with the external drive device electricity.
2. The experimental device for testing the key components of the rotating sidewall coring instrument as claimed in claim 1, wherein the external joint assembly comprises an external joint, a double female joint and a first transition joint which are sequentially and hermetically connected, the first transition joint is in sealed threaded connection with the left end of the first chamber shell, pressure-bearing joints are respectively and hermetically arranged between the external joint and the double female joint and between the first transition joint and the double female joint, and a connecting wire of the motor sequentially penetrates through the interiors of the first transition joint, the pressure-bearing joints, the double female joint, the pressure-bearing joints and the external joint to be connected with an external driving device.
3. The experimental apparatus for testing the key components of the rotating sidewall coring apparatus of claim 2, wherein the external joint assembly further comprises: the quick-turn nuts are sleeved between the external connector and the double female connector and between the first transition connector and the double female connector, and the external connector and the first transition connector are in threaded connection with the double female connector through the quick-turn nuts; and the clamp springs are arranged in the external joint and used for fixing the pressure-bearing joints, and the two pressure-bearing joints are respectively fixed in the external joint and the first transition joint through the clamp springs.
4. The experimental device for testing the key components of the rotating sidewall coring instrument as claimed in claim 1, further comprising a first heating device wound around the outer peripheral wall of the first chamber housing for heating the liquid in the first chamber housing.
5. The rotary sidewall coring tool critical component testing experiment device of any one of claims 1-4, further comprising a temperature sensor and a pressure sensor, the temperature sensor and the pressure sensor being disposed within the first chamber housing between the hydraulic pump and the transition joint assembly.
6. The experimental device for testing the key components of the rotating sidewall coring instrument according to any one of claims 1-4, wherein the transition joint assembly comprises a second transition joint, the left end of the second transition joint is in sealed threaded connection with the right end of the first chamber shell, the oil outlet and the oil return hole are formed in the second transition joint at intervals along the axial direction of the second transition joint, a pressure chamber is formed in the second transition joint, the left side of the pressure chamber is communicated with the inside of the first chamber shell, the right side of the pressure chamber is communicated with the right side of the second transition joint, and a balance piston is arranged in the pressure chamber and is set to be not separated from the pressure chamber.
7. The experimental device for testing the key components of the rotating sidewall coring apparatus according to claim 6, wherein the backflow assembly comprises a first sub-oil pipe, a backflow part and a second sub-oil pipe which are sequentially connected, the experimental device for testing the key components of the rotating sidewall coring apparatus further comprises a second sealing chamber, and the second sealing chamber comprises: the left end of the second chamber shell is in threaded sealing connection with the right end of the second transition joint, the right side of the pressure cavity is communicated with the inside of the second chamber shell, and the backflow assembly is arranged in the second chamber shell; the plugging end cover is in sealing threaded connection with the right end of the second chamber shell, two communicating holes are formed in the plugging end cover, and the two communicating holes are used for arranging a pressure gauge and inputting high-pressure media respectively; the oil outlet, the first sub oil pipe, the backflow part, the second sub oil pipe and the oil return hole are communicated in sequence.
8. The experimental device for testing the key components of the rotating sidewall coring apparatus according to claim 7, wherein the backflow portion is provided as a throttle valve or a hydraulic motor.
9. The experimental device for testing the key components of the rotating sidewall coring instrument as claimed in claim 8, further comprising a second heating device wound around the outer peripheral wall of the second chamber housing for heating the liquid in the second chamber housing.
10. The experimental apparatus for testing the key components of the rotating sidewall coring apparatus according to claim 6, wherein the backflow assembly comprises a first sub-oil pipe and a second sub-oil pipe, and the experimental apparatus for testing the key components of the rotating sidewall coring apparatus further comprises: the fixing frame is fixedly connected to the right end of the second transition joint, and the right end of the fixing frame is used for fixing the hydraulic motor; and the eddy current brake is used for being connected with the hydraulic motor, wherein the first oil pipe is used for communicating the oil outlet hole with the oil inlet hole of the hydraulic motor, and the second oil pipe is used for communicating the oil outlet hole of the hydraulic motor with the oil return hole.
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