CN113758693B - Experimental device for testing key components of rotary sidewall coring instrument - Google Patents
Experimental device for testing key components of rotary sidewall coring instrument Download PDFInfo
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- CN113758693B CN113758693B CN202110932339.5A CN202110932339A CN113758693B CN 113758693 B CN113758693 B CN 113758693B CN 202110932339 A CN202110932339 A CN 202110932339A CN 113758693 B CN113758693 B CN 113758693B
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- 238000012360 testing method Methods 0.000 title claims abstract description 90
- 230000007704 transition Effects 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 78
- 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 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005485 electric heating Methods 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
- 239000000243 solution Substances 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000945 filler 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
- 238000005086 pumping Methods 0.000 description 1
- 238000004904 shortening Methods 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
Classifications
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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
-
- 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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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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 chamber comprising: the first chamber shell is internally provided with a motor and a hydraulic pump connected with the motor; the external joint assembly is connected to the left end of the first chamber shell in a sealing way, and an oil injection hole and a wiring hole which are communicated with the first chamber shell are formed in the external joint assembly; and the transition joint assembly is hermetically connected to the right end of the first chamber shell, 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 runner communicated with the oil outlet and the oil return hole is formed in the backflow assembly. The experimental device provided by the invention can simplify the structure of the testing device, is suitable for the 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 sidewall coring instrument.
Background
With the rapid development of industries such as petroleum, natural gas and the like, the rotary sidewall coring apparatus has wider application and is also favored in the industries. However, with the increasing severity of the landing sites and the working environment of the marine exploration well, the severe environments such as deep wells, high temperatures (210 ℃) and high pressures (140 MPa) become common working conditions for the current rotary sidewall coring operation. At present, the domestic sidewall coring equipment is unstable in performance, low in reliability and frequent in faults when dealing with the working conditions, especially key components such as a motor, a hydraulic pump and a hydraulic motor, but at present, a feasible test scheme which can be completed in a laboratory is not available, and only a simulation test can be performed in a high-temperature high-pressure well, and the high-temperature high-pressure well is the only experimental equipment and has high cost and relatively long experimental period, and the cost and expense in various aspects such as disassembly, transportation, transition and field operation of the equipment are relatively high, so that the test time is uncontrollable, the product development period is prolonged, and the like.
Disclosure of Invention
In order to solve all or part of the problems, the invention aims to provide an experimental device for testing key components of a rotary sidewall coring apparatus, so as to simplify the structure of the testing device, enable the testing device to be suitable for simulation test in a laboratory, effectively reduce the risk of construction through a well site, greatly shorten the testing period, greatly reduce the testing cost and accelerate the development period.
The invention provides an experimental device for testing key components of a rotary sidewall coring apparatus, which comprises a first sealed cavity, wherein the first sealed cavity comprises: the first chamber shell is internally provided with a motor and a hydraulic pump connected with the motor; the external joint assembly is connected to the left end of the first chamber shell in a sealing way, and an oil injection hole and a wiring hole which are communicated with the first chamber shell are formed in the external joint assembly; and the transition joint assembly is hermetically connected to the right end of the first chamber shell, 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 runner communicated with the oil outlet and the oil return hole is formed in the backflow assembly. The motor is located the left side of hydraulic pump and is close to external joint subassembly setting, and the oil filler point is used for injecting hydraulic oil to the interior injection of first cavity casing, and the wiring hole is used for the motor to be connected with outside drive arrangement electricity.
Further, the external connection joint assembly comprises an external connection joint, a double female joint and a first transition joint which are sequentially connected in a sealing mode, the first transition joint is in sealing threaded connection with the left end of the first cavity shell, a pressure-bearing joint is respectively arranged between the external connection joint and the double female joint and between the first transition joint and the double female joint in a sealing mode, and a connecting wire of the motor sequentially penetrates through the first transition joint, the pressure-bearing joint, the double female joint, the pressure-bearing joint and the internal portion of the external connection joint to be connected with an external driving device.
Further, the external joint assembly further includes: the quick-turn nuts are sleeved between the external joint and the double female joint and between the first transition joint and the double female joint, and the external joint and the first transition joint are in threaded connection with the double female joint through the quick-turn nuts; and the clamping 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 clamping springs.
Further, the experimental device for testing the key components of the rotary sidewall coring apparatus further comprises a first heating device, wherein the first heating device is wound on the outer peripheral wall of the first chamber shell and is used for heating the liquid in the first chamber shell.
Further, the experimental device for testing the key components of the rotary sidewall coring apparatus further comprises a temperature sensor and a pressure sensor, wherein the temperature sensor and the pressure sensor are arranged in the first chamber 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 and the oil return hole are formed on the second transition joint along the axial interval of the second transition joint. The second transition joint is internally provided with a pressure chamber, the left side of the pressure chamber is communicated with the first chamber shell, the right side of the pressure chamber is communicated with the right side of the second transition joint, the pressure chamber is internally provided with a balance piston, and the balance piston is arranged to be incapable of being separated from the pressure chamber.
Further, 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 rotary sidewall coring instrument 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 second chamber shell, and the backflow component 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, and two communication holes are formed in the plugging end cover and are respectively used for setting a pressure gauge and inputting a high-pressure medium. 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.
Further, the experimental device for testing the key components of the rotary sidewall coring apparatus further comprises a second heating device, wherein the second heating device is wound on the outer peripheral wall of the second chamber shell and is used for heating the liquid in the second chamber shell.
Further, the reflux assembly comprises a first sub oil pipe and a second sub oil pipe, and the experimental device for testing the key components of the rotary sidewall coring apparatus further comprises: the right end of the fixing frame is used for fixing the hydraulic motor; and the electric vortex brake is used for being connected with the hydraulic motor, wherein the first sub oil pipe is used for communicating the oil outlet hole with the oil inlet hole of the hydraulic motor, and the second sub oil pipe is used for communicating the oil outlet hole of the hydraulic motor with the oil return hole.
Compared with the prior art, the experimental device for testing the key components of the rotary sidewall coring apparatus has the advantages of simple integral structure and small volume, and can complete the test of main power components such as a motor, a hydraulic pump and the like and an executive component in a laboratory under the simulated high-pressure environment, thereby effectively eliminating the risk of construction through a well site, greatly shortening the test period, greatly reducing the test cost and accelerating the development period.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of an experimental apparatus for testing key components of a rotary sidewall coring apparatus in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of an experimental apparatus for testing key components of a rotary sidewall coring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a third embodiment of an experimental apparatus for testing key components of a rotary 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 schematic view of the structure at A shown in FIG. 1;
fig. 6 is a schematic structural view of the plugging end cap shown in fig. 1 and 2.
Detailed Description
In order to better understand the purpose, structure and function of the invention, the experimental device for testing the key components of the rotary sidewall coring device is further described in detail below with reference to the accompanying drawings.
FIGS. 1-3 are schematic structural views of various embodiments of an experimental apparatus for testing critical components of a rotary sidewall coring apparatus in accordance with an embodiment of the present invention. Referring to fig. 1 and 5, an experimental apparatus 100 for testing key components of a rotary sidewall coring apparatus is provided according to an embodiment of the present invention, including a first sealing chamber 10, where the first sealing chamber 10 includes: a first chamber housing 11, wherein the first chamber housing 11 is provided with a motor 30 and a hydraulic pump 40 connected with the motor 30; the external joint assembly 50 is connected to the left end of the first chamber shell 11 in a sealing way, and the external joint assembly 50 is provided with an oil injection hole 12 and a wiring hole 13 which are communicated with the first chamber shell 11; 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 in the figure) 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 backflow 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 backflow assembly 16. The motor 30 is located at the left side of the hydraulic pump 40 and is disposed near the external connection joint assembly 50, the oil injection hole 12 is used for injecting hydraulic oil into the first chamber housing 11, and the wire connection hole 13 is used for electrically connecting the motor 30 with an external driving device.
The right and left directions referred to in the present application are understood as the right and left directions shown in fig. 1 to 3 (the attached views 1 to 3 are each rotated 90 ° to the right, and the right and left directions referred to in the present application are understood as the up and down directions shown in fig. 1 to 3, as shown in fig. 1 to 3). The external driving device mentioned in the present application is understood to be a driving control box 80 connected to the external power source 70, and an operator can control the start and stop of the motor 30 and speed regulation by controlling the external driving device. The reference to the present application for providing the motor 30 and the hydraulic pump 40 is only to be installed when testing the motor 30 and the hydraulic pump 40, and the present application should be understood to be capable of performing performance tests on other power components and actuators.
In the experimental device 100 for testing the key components of the rotary sidewall coring apparatus in the embodiment of the invention, in the process of testing a hydraulic power system, a motor 30 and a hydraulic pump 40 are connected and installed with the experimental device 100 for testing the key components of the rotary sidewall coring apparatus, namely, the motor 30 is fixed in a 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 is formed on a transition joint assembly 60 through a connecting pipe 15 and an oil outlet hole 40 is connected. And then hydraulic oil is injected into the first sealed chamber 10 through the oil injection hole 12. After the connection of the test system is completed, 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 through the connecting tube 15 into the return assembly 16 and back into the first sealed chamber 10. With this arrangement, no-load and load operation testing of the power system composed of the motor 30 and the hydraulic pump 40 can be achieved.
Compared with the prior art, the prior art can only test in a high-temperature high-pressure test well, the test cost is relatively high, the test cost reaches 5 ten thousand yuan/day a day, the test device is high in cost, the labor power consumption is relatively high, and the test period is long. Because the performance of the high-temperature high-pressure rotary sidewall coring instrument product is not stable, the high-temperature high-pressure rotary sidewall coring instrument product needs to be tested quickly and repeatedly, the testing cost is high, the whole testing process equipment needs to be transported, loaded, unloaded and transferred, and the period is long. Through the arrangement, the experimental device 100 for testing the key components of the rotary sidewall coring apparatus has the advantages of simple overall structure and small volume, and can test the main power components and the executing 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 accelerated.
In the preferred embodiment shown in fig. 1 to 3, the external connection connector assembly 50 may include an external connection connector 501, a double female connector 502 and a first transition connector 503 which are sequentially connected in a sealing manner, the first transition connector 503 is in a sealing threaded connection with the left end of the first chamber housing 11, a pressure-bearing connector 504 is respectively arranged between the external connection connector 501 and the double female connector 502 and between the first transition connector 503 and the double female connector 502 in a sealing manner, and a connecting line of the motor 30 sequentially passes through the first transition connector 503, the pressure-bearing connector 504, the double female connector 502, the pressure-bearing connector 504 and the internal portion of the external connection connector 501 to be connected with an external driving device. By the arrangement, on one hand, the components can be conveniently detached and installed through the connection of the connectors; on the other hand, the embodiment of the invention is further provided with the pressure-bearing joint 504, through the arrangement, the experimental device 100 for testing the key component of the rotary sidewall coring apparatus of the embodiment of the invention can be applied to the test of the high-pressure environment, and through the arrangement of the pressure-bearing joint 504, the pressure in the first sealed chamber 10 is not influenced by the external high pressure, so that the whole test process is more accurate. Meanwhile, through the arrangement, the experimental device 100 for testing the key components of the rotary sidewall coring apparatus provided by the embodiment of the invention has the advantages that the testing environment is more flexible, and the influence factors from the outside are smaller.
In the preferred embodiment shown in fig. 1-4, the external connector assembly 50 may further comprise: the external joint 501 and the first transition joint 503 are in threaded connection with the double female joint 502 through the quick-rotation nuts 505; and a clamping spring 506 arranged in the external joint 501 and used for fixing the pressure-bearing joints 504, wherein the two pressure-bearing joints 504 are respectively fixed in the external joint 501 and the first transition joint 503 through the clamping spring 506. By this arrangement, the convenience of disassembly and assembly between the components can be further improved by the selection of the respective fixing members.
In the preferred embodiment shown in fig. 1-3, the experimental device 100 for testing key components of the rotary sidewall coring apparatus may further comprise a first heating device 17, wherein the first heating device 17 is wound around the outer peripheral wall of the first chamber housing 11 for heating the liquid in the first chamber housing 11. The heating means mentioned in the present application may be an electric heating belt. With this arrangement, the first chamber housing 11 can be heated by the electric heating belt to raise the temperature of the liquid in the first chamber housing 11. In such a testing environment, the first sealed chamber 10 is formed to have a high temperature and high pressure testing environment, thereby enabling a high temperature and high pressure no-load and load test of the motor 30 and hydraulic pump 40 assembly alone.
In the preferred embodiment shown in fig. 1-3, the rotary sidewall coring device critical component testing apparatus 100 may further include 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 between the hydraulic pump 40 and the transition joint assembly 60 for temperature and pressure testing of the first sealed chamber 10. Thus, the device can be correspondingly adjusted according to the test requirement to simulate the actual working temperature and pressure.
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 being sealingly screwed with a right end of the first chamber housing 11, and an oil outlet hole 14 and an oil return hole (not shown) being formed on the second transition joint 21 at intervals along an axial direction of the second transition joint 21. The second transition joint 21 is formed with a pressure chamber 211 therein, a left side of the pressure chamber 211 is communicated with the inside of the first chamber housing 11, a right side of the pressure chamber 211 is communicated with a right side of the second transition joint 21, a balance piston 212 is disposed in the pressure chamber 211, and the balance piston 212 is disposed to be unable to disengage from the pressure chamber 211.
The balance piston 212 being provided as the non-detachable pressure chamber 211 in the present application means that both ends of the pressure chamber 211 should be provided with a retainer ring 213 that can be used to limit the balance piston 212, so as to ensure that the balance piston 212 cannot be detached from the pressure chamber 211 during the movement. The balance piston 212 mentioned in the present application is also understood to have a relief valve 214 provided thereon. Through the arrangement, the experimental device 100 for testing the key components of the rotary sidewall coring apparatus according to the embodiment of the present application can adjust the pressure in the first sealed chamber 10 through the balance piston 212, so as to correspondingly adjust according to the test requirement and simulate the actual working pressure.
In a preferred embodiment, the return assembly 16 may include a first sub-tubing 161, a return 23, and a second sub-tubing 162 connected in sequence, and the rotary sidewall coring device critical component testing laboratory apparatus 100 may further include 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 assembly 16 is arranged in the second chamber shell 22; and a blocking end cap 24 (shown in fig. 1, 2 and 6), the blocking end cap 24 is in sealing threaded connection with the right end of the second chamber housing 22, and two communication holes 241 are formed in the blocking end cap 24, and the two communication holes 241 are respectively used for setting the pressure gauge 25 and for inputting high pressure medium. Wherein the oil outlet hole 14, the first sub oil pipe 161, the return portion 23, the second sub oil pipe 162, and the oil return hole (not shown) are sequentially communicated. Further, the return portion 23 may be provided as a throttle valve 231 (as in the second embodiment of the experimental apparatus for testing a key component of a rotary sidewall coring apparatus of the present invention shown in fig. 2) or a hydraulic motor 232 (as in the first embodiment of the experimental apparatus for testing a key component of a rotary sidewall coring apparatus of the present invention shown in fig. 1). Preferably, the experimental device 100 for testing key components of the rotary sidewall coring device further comprises a second heating device 27, wherein the second heating device 27 is wound on the outer peripheral wall of the second chamber housing 22 and is used for heating 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 hydraulic rubber pipes or metal pipes. In the second embodiment of the experimental device for testing the key components of the rotary sidewall coring apparatus of the present application shown in fig. 2, when the backflow part 23 is the throttle valve 231, the idle load and load operation test of the power system composed of the motor 30 and the hydraulic pump 40 in the high-temperature and high-pressure environment can be realized by adjusting the opening degree of the throttle valve 231. In the first embodiment of the experimental device for testing key components of the rotary sidewall coring apparatus of the present application shown in fig. 1, when the backflow portion 23 is the hydraulic motor 232, 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 drawing) are sequentially connected in conjunction with the above description in a specific test. By controlling the driving means to be turned on, the motor 30 is started and simultaneously drives the hydraulic pump 40 to rotate. The hydraulic pump 40 can pump hydraulic oil into the oil pipe through the connection pipe 15 and into the hydraulic motor 232, driving the hydraulic motor 232 to rotate. With this arrangement, a high Wen Kongzai test of the hydraulic motor 232 may be achieved. After the connection of the test system is completed, the test system is connected with an external high-pressure water source 26 through the plugging end cover 24, so that the second sealing chamber 20 is filled with high-pressure liquid, the first sealing chamber 10 and the second sealing chamber 20 can keep pressure balance through the balance piston 212, the pressure of two sides can be adjusted according to the test requirement, and the actual working pressure is simulated. With this arrangement, high-temperature high-pressure air load testing of the hydraulic motor 232 can be achieved. In addition, by combining the first sealed chamber 10 and the second sealed chamber 20, it is possible to perform a high-temperature pressure balance test on the hydraulic power system composed of the motor 30, the hydraulic pump 40, and the hydraulic motor 232, and a high-temperature high-pressure balance test on the hydraulic power system composed of the motor 30, the hydraulic pump 40, and the hydraulic motor 232.
In a third embodiment of the rotary sidewall coring apparatus of the present invention illustrated in FIG. 3, the reflow assembly 16 may include a first sub-oil line 161 and a second sub-oil line 162, and the rotary sidewall coring apparatus 100 may further include: the fixed frame 28 is fixedly connected to the right end of the second transition joint 21, and the right end of the fixed frame 28 is used for fixing the hydraulic motor 232; and an electric eddy current brake 90 for connection to hydraulic motor 232. The first sub-oil pipe 161 is used for communicating the oil outlet 14 with the oil inlet of the hydraulic motor 232, and the second sub-oil pipe 162 is used for communicating the oil outlet of the hydraulic motor 232 with an oil return hole (not shown).
The hydraulic motors 232 are all fixedly connected with the fixing frame 28 through motor fixing seats. In this embodiment, the right second chamber housing 22 is removed and the hydraulic motor 232 is connected to the eddy current brake 90. During the rotation of the hydraulic motor 232, the electric vortex brake 90 provides resistance to the hydraulic motor 232, so that the hydraulic power consisting of the motor 30, the hydraulic pump 40 and the hydraulic motor 232 and the system variable load running test can be realized.
It should be noted that, the sealing threaded connection mentioned in the present application includes sealing with a sealing ring at the threaded connection.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
In the description of the present application, it should be understood that the terms "left", "right", "inner", "outer", "axial", and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "plurality" is two or more unless specifically defined otherwise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (7)
1. Experimental device for rotatory wall coring apparatus key parts test, its characterized in that includes first sealed cavity, first sealed cavity includes:
The first chamber shell is internally provided with a motor and a hydraulic pump connected with the motor;
the external joint assembly is connected to the left end of the first chamber shell in a sealing way, and an oil injection hole and a wiring hole which are communicated with the first chamber shell are formed in the external joint assembly; and
The transition joint assembly is connected to the right end of the first chamber shell in a sealing way, 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;
the motor is positioned at the left side of the hydraulic pump and is close to the external joint assembly, the oil filling hole is used for filling hydraulic oil into the first chamber shell, and the wiring hole is used for electrically connecting the motor with an external driving device; 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, the oil outlet hole and the oil return hole are formed on the second transition joint along the axial interval 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, a balance piston is arranged in the pressure chamber, and the balance piston is arranged to be not separated from the pressure chamber; 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 rotary sidewall coring instrument 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 chamber is communicated with the inside of the second chamber shell, and the backflow component is arranged in the second chamber shell; the sealing end cover is in sealing threaded connection with the right end of the second chamber shell, two communication holes are formed in the sealing end cover, and the two communication holes are respectively used for setting a pressure gauge and inputting a high-pressure medium; the oil outlet hole, the first sub oil pipe, the reflux part, the second sub oil pipe and the oil return hole are sequentially communicated; the return is provided as a throttle valve or a hydraulic motor.
2. The experimental device for testing the key components of the rotary sidewall coring apparatus according to claim 1, wherein the external joint assembly comprises an external joint, a double female joint and a first transition joint which are sequentially connected in a sealing manner, the first transition joint and the left end of the first chamber housing form a sealing threaded connection, a pressure-bearing joint is respectively arranged between the external joint and the double female joint and between the first transition joint and the double female joint in a sealing manner, and a connecting wire of the motor sequentially penetrates through the first transition joint, the pressure-bearing joint, the double female joint, the pressure-bearing joint and the internal part of the external joint to be connected with an external driving device.
3. The experimental set for testing critical components of a rotary sidewall coring apparatus of claim 2, wherein said external connector assembly further comprises: the quick-rotation nut is sleeved between the external joint and the double female joint and between the first transition joint and the double female joint, and the external joint and the first transition joint are in threaded connection with the double female joint through the quick-rotation nut; and the clamping 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 clamping springs.
4. The experimental device for testing critical components of a rotary sidewall coring apparatus of 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 apparatus of any one of claims 1-4, wherein said rotary sidewall coring apparatus further comprises a temperature sensor and a pressure sensor disposed within said first chamber housing between said hydraulic pump and said transition joint assembly.
6. The experimental device for testing critical components of a rotary sidewall coring apparatus of claim 1, 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.
7. The experimental device for testing critical components of a rotary sidewall coring apparatus of claim 1, wherein when said return section is configured as a hydraulic motor, said experimental device for testing critical components of a rotary sidewall coring apparatus further comprises: the right end of the fixing frame is used for fixing the hydraulic motor; and the electric vortex brake is used for being connected with the hydraulic motor, wherein the first sub oil pipe is used for communicating the oil outlet hole with the oil inlet hole of the hydraulic motor, and the second sub oil pipe is used for communicating the oil outlet hole of the hydraulic motor with the oil return hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932339.5A CN113758693B (en) | 2021-08-13 | 2021-08-13 | Experimental device for testing key components of rotary sidewall coring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932339.5A CN113758693B (en) | 2021-08-13 | 2021-08-13 | Experimental device for testing key components of rotary sidewall coring instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201087710Y (en) * | 2007-10-19 | 2008-07-16 | 中国海洋石油总公司 | Simulated coring test device |
| CN101446306A (en) * | 2008-11-27 | 2009-06-03 | 中国海洋石油总公司 | Test device for underground hydraulic element |
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| US7191831B2 (en) * | 2004-06-29 | 2007-03-20 | Schlumberger Technology Corporation | Downhole formation testing tool |
| RU2402750C2 (en) * | 2008-09-17 | 2010-10-27 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения имени П.И. Баранова" | Bench for altitude-climatic tests of turboprop and turboshaft engines |
| CN209707125U (en) * | 2019-04-12 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of experimental provision for verifying telescopic tool service performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201087710Y (en) * | 2007-10-19 | 2008-07-16 | 中国海洋石油总公司 | Simulated coring test device |
| CN101446306A (en) * | 2008-11-27 | 2009-06-03 | 中国海洋石油总公司 | Test device for underground hydraulic element |
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