CN204255623U - A kind of subsurface tool dynamic performance experiment pick-up unit - Google Patents
A kind of subsurface tool dynamic performance experiment pick-up unit Download PDFInfo
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- CN204255623U CN204255623U CN201420687274.8U CN201420687274U CN204255623U CN 204255623 U CN204255623 U CN 204255623U CN 201420687274 U CN201420687274 U CN 201420687274U CN 204255623 U CN204255623 U CN 204255623U
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Abstract
The utility model specifically provides a kind of subsurface tool dynamic performance experiment pick-up unit, comprise wriggling load maintainer, test fixture mechanism and observing and controlling mechanism, wriggling load maintainer is made up of pedestal, loading fluid cylinder assembly, guide rail and the dolly be arranged on guide rail be arranged on pedestal, aligns with the axis of guide rail in the axis of pedestal; Test fixture mechanism is made up of pressure cap, loading short circuit, loading polished rod, Sealed casing pipe, bump joint, variable buckle joint, test casing, blind flange, observing and controlling mechanism comprises three groups of control device and central processing system CPU, often organizes control device and comprises energy storage device, hydraulic pump, ball-and-seat, pressure transducer and blowdown valve.This utility model achieves the Oil/gas Well instruments such as packer and tests at the wriggling of down-hole high pressure operating mode, thus more presses close to the actual working state of instrument in down-hole, and the research and development for subsurface tools such as packers provide experiment porch, solves actual production problem.
Description
Technical field
The utility model is specifically related to a kind of subsurface tool dynamic performance experiment pick-up unit, is mainly applicable to the sealing property of the subsurface tools such as oil, gas, water injection well packer under wriggling state and fatigue behaviour experiment.
Background technology
Packer experimental detection device traditional at present, be generally first be lowered in wellbore hole simulator by packer, fix packer, packer setting, packer upper and lower cavity carries out pressure-bearing experiment.And when carrying out Performance Detection to packer, corresponding test is done mainly for the sealing property under High Temperature High Pressure, as Chinese ZL201120241698 discloses a kind of packer test device, it is applied to the shop experiment of oil field well packer, the wall of lower sub there is a hydraulic joint fixed orifice, tank body is connected at the threaded upper ends of lower sub, the threaded upper ends connected pipes hanging seat of tank body, the wall of tubing hanging seat there is a hydraulic joint fixed orifice, the inwall of tubing hanging seat has a circular conical surface step, the circular conical surface step of tubing hanging seat has the tubing hanger of an annulated column bodily form, tubing hanging seat threaded upper ends connects an annular pressure cap, and the lower end of pressure cap is pressed on the upper surface of tubing hanger, in center pit, oil pipe is had in tubing hanger, the lower end screw thread of oil pipe is fixed with plug, and there is the end plug lower end, and the utility model is the packer set of Simulated Water horizontal well and long horizontal traverse well, and it is mainly a kind of packoff.
In addition, the patent No. is the test unit that CN104048818A discloses the detection of a kind of packer performance, and it comprises: sealing mechanism, comprises the sleeve of seal pack device and the bracing frame of stop sleeve; Travel mechanism, comprises back up pad and is located at along the axially extended upright guide rail of sleeve in back up pad, and the supporting plate be located on upright guide rail that slides; Tension and compression mechanism is located on supporting plate, and comprise for packer provides the telescopic oil cylinder of pulling force or pressure, the movable end of telescopic oil cylinder is provided with and is connected with packer end, is provided with pressure transducer at movable end and packer end connecting place; Twist mechanism, is located on supporting plate, and comprise drive motor, the transmission shaft be connected with drive motor and detect the torsion sensor of twisting resistance, the end of transmission shaft is provided with the adapter sleeve be connected with packer end; TT&C system, is connected with torsion sensor with pressure transducer.This utility model is a kind of device carrying out Performance Detection under indoor are for packer tension and compression, torsion condition.
But, in experimentation, packer is in stationary state all the time, can not move vertically, and under actual working conditions, the tubing string of a few km arrives shaft bottom with under packer, because the factor such as pressure, temperature acts on tubing string and packer, packer is wriggled vertically, and this is also often find the reason place that packer lost efficacy in site operation.For simulation actual working conditions, need to research and develop a kind of subsurface tool dynamic performance experiment device.
Utility model content
The purpose of this utility model overcomes existing packer experimental detection device can not simulate the problem that packer realizes Performance Detection under the working condition of wriggling state.
For this reason, the utility model provides a kind of subsurface tool dynamic performance experiment pick-up unit, comprise wriggling load maintainer, test fixture mechanism and observing and controlling mechanism, described wriggling load maintainer is made up of pedestal, loading fluid cylinder assembly, guide rail and the dolly be arranged on guide rail be arranged on pedestal, described guide rail is arranged on the side of pedestal, aligns with the axis of pedestal in the axis of guide rail;
Described test fixture mechanism is by pressure cap, load short circuit, load polished rod, Sealed casing pipe, bump joint, variable buckle joint, test casing, blind flange forms, described loading short circuit upper end is connected with pressure cap, its lower end is connected with loading polished rod, described loading polished rod upper end is provided with pipe core inlet, described loading polished rod inside is provided with pipe core, this pipe core upper end communicates with pipe core inlet, its lower end extends to and loads polished rod lower surface, described loading polished rod lower end is connected with variable buckle joint, described Sealed casing pipe is socketed on the outer wall of loading polished rod, described Sealed casing pipe upper end is connected with loading fluid cylinder assembly, lower end, Sealed casing pipe lower end joint flange upper end of joint, described bump joint upper end is provided with epicoele inlet opening, described bump joint lower end joint test sleeve upper end, the lower end of described loading polished rod is placed in test casing, described test casing lower end connects blind flange, the center of described blind flange is provided with cavity of resorption inlet opening, this cavity of resorption inlet opening communicates with test casing, described test casing is placed on dolly,
Described observing and controlling mechanism comprises three groups of control device and central processing system CPU, often organize control device and comprise energy storage device, hydraulic pump, ball-and-seat, pressure transducer and blowdown valve, described pressure transducer one end is connected with energy storage device one end by ball-and-seat, the described energy storage device other end is connected with hydraulic pump, the other end of the pressure transducer in described three groups of control device by pipeline respectively with pipe core inlet, epicoele inlet opening is connected with cavity of resorption inlet opening, described blowdown valve is arranged on pipeline, the described hydraulic pump often organized in control device, pressure transducer and blowdown valve are all electrically connected with central processing system CPU.
Described loading fluid cylinder assembly comprises two fluid cylinders, two plungers, terminal pad and loading crossbeams;
Described terminal pad has the flange hole that three horizontal, two, both sides flange hole is connected with two fluid cylinders respectively, and intermediate method flange aperture is connected with Sealed casing pipe;
Described loading crossbeam has the circular hole that three horizontal, two, both sides circular hole is connected with two plungers respectively, and middle circular hole is connected with loading short circuit, loads crossbeam and is fixed by plunger and terminal pad.
Described dolly comprises wheel, the chassis be arranged on wheel, be arranged on that height on chassis regulates cylinder, with the righting roller highly regulating cylinder to be connected and be arranged on the adjusting handle highly regulated between cylinder and righting roller, this dolly has two.
Described loading short circuit is the right cylinder with a step, and there is outer acme thread its upper end, and there is inner trapezoidal thread lower end.
Described loading polished rod be about one all with the right cylinder of outer acme thread.
Described Sealed casing pipe is the cylindrical tube that there is flange a upper end, there is sleeve external thread lower end, is provided with O-ring seal one between its upper flanges center pit and loading polished rod.
Described bump joint is the pipe that there is inner sleeve screw thread a upper end, there is flange lower end.
Described test casing be a upper and lower side all with the pipe of flange, its upper and lower side flange is all fixedly connected with blind flange with end flanges under bump joint with bolted cap (BC) respectively by bolt.
Described variable buckle joint is the pipe that there is inner trapezoidal thread a upper end, there is outer tubing thread lower end, is provided with O-ring seal two between this variable buckle joint and loading polished rod.
Described blind flange is a ring flange with pipe thread central through hole.
The beneficial effects of the utility model: the utility model can realize the Oil/gas Well instruments such as packer and test at the wriggling of down-hole high pressure operating mode, thus more press close to the actual working state of instrument in down-hole, research and development for subsurface tools such as packers provide experiment porch, solve actual production problem.
(1) the utility model can set at subsurface tools such as packers and to its applying power under having pressure differential up and down, make its to-and-fro movement.
(2) the utility model test casing can be changed, and can be replaced by the test casing of different size and length as required, expands the scope of application.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is load maintainer schematic side view of wriggling in the utility model.
Fig. 2 is load maintainer schematic top plan view of wriggling in the utility model.
Fig. 3 is load maintainer terminal pad left view of wriggling in the utility model.
Fig. 4 is load maintainer loading crossbeam left view of wriggling in the utility model.
Fig. 5 is load maintainer dolly left view of wriggling in the utility model.
Fig. 6 is the combination schematic diagram of load maintainer, test fixture mechanism of wriggling in the utility model.
Fig. 7 is the structural representation of test fixture mechanism in the utility model.
Fig. 8 is the principle schematic of observing and controlling mechanism in the utility model.
Description of reference numerals: 1, pedestal; 2, fluid cylinder assembly is loaded; 3, guide rail; 4, dolly; 5, pressure cap; 6, short circuit is loaded; 7, polished rod is loaded; 8, Sealed casing pipe; 9, bump joint; 10, bolted cap (BC); 11, bolt; 12, variable buckle joint; 13, test casing; 14, blind flange; 15, energy storage device; 16, hydraulic pump; 17, ball-and-seat; 18, pressure transducer; 19, blowdown valve; 21, fluid cylinder; 22, plunger; 23, terminal pad; 24, crossbeam is loaded; 41, wheel; 42, chassis; 43, highly cylinder is regulated; 44, adjusting handle; 45, righting roller; 71, pipe core inlet opening; 72, O-ring seal one; 81, O-ring seal two; 91, epicoele inlet opening; 92, cavity of resorption inlet opening.
Embodiment
Embodiment 1:
The problem that packer realizes Performance Detection under the working condition of wriggling state can not be simulated to overcome existing packer experimental detection device, present embodiments provide a kind of as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, subsurface tool dynamic performance experiment pick-up unit shown in Fig. 7 and Fig. 8, comprise wriggling load maintainer, test fixture mechanism and observing and controlling mechanism, described wriggling load maintainer is by pedestal 1, be arranged on the loading fluid cylinder assembly 2 on pedestal 1, guide rail 3 and the dolly 4 arranged on guides 3 form, described guide rail 3 is arranged on the side of pedestal 1, align with the axis of pedestal 1 in the axis of guide rail 3, described guide rail 3 is two i section steel beam compositions, and dolly 4 can be free to slide on guides 3.
Described test fixture mechanism is by pressure cap 5, load short circuit 6, load polished rod 7, Sealed casing pipe 8, bump joint 9, variable buckle joint 12, test casing 13, blind flange 14 forms, described loading short circuit 6 upper end is connected with pressure cap 5, its lower end is connected with loading polished rod 7, described loading polished rod 7 upper end is provided with pipe core inlet 71, described loading polished rod 7 inside is provided with pipe core, this pipe core upper end communicates with pipe core inlet 71, its lower end extends to and loads polished rod 7 lower surface, described loading polished rod 7 lower end is connected with variable buckle joint 12, described Sealed casing pipe 8 is socketed on the outer wall of loading polished rod 7, described Sealed casing pipe 8 upper end is connected with loading fluid cylinder assembly 2, joint flange joint 9 upper end, lower end, Sealed casing pipe 8 lower end, described bump joint 9 upper end is provided with epicoele inlet opening 91, joint test sleeve pipe 13 upper end, described bump joint 9 lower end, the lower end of described loading polished rod 7 is placed in test casing 13, described test casing 13 lower end connects blind flange 14, the center of described blind flange 14 is provided with cavity of resorption inlet opening 92, this cavity of resorption inlet opening 92 communicates with test casing 13, described test casing 13 is placed on dolly 4.
Described observing and controlling mechanism comprises three groups of control device and central processing system CPU, often organize control device and comprise energy storage device 15, hydraulic pump 16, ball-and-seat 17, pressure transducer 18 and blowdown valve 19, described pressure transducer 18 one end is connected with energy storage device 15 one end by ball-and-seat 17, described energy storage device 15 other end is connected with hydraulic pump 16, the other end of the pressure transducer 18 in described three groups of control device by pipeline respectively with pipe core inlet 71, epicoele inlet opening 91 is connected with cavity of resorption inlet opening 92, described blowdown valve 19 is arranged on pipeline, the described hydraulic pump 16 often organized in control device, pressure transducer 18 and blowdown valve 19 are all electrically connected with central processing system CPU.
In this utility model, central processing system CPU will control the action of each observing and controlling components and parts after the pressure sensor data of collection and the comparison of program setting parameter.When the wriggling due to test instrument to cause in test casing 13 or pipe core inlet opening 71 pressure change, central processing system CPU controls blowdown valve 19 or hydraulic pump 16 and energy storage device 15 and works, and carries out pressure release or ftercompction operation, warranty test pressure steady.
Embodiment 2:
On the basis of embodiment 1, described loading fluid cylinder assembly 2 comprises two fluid cylinders, 21, two plungers 22, terminal pad 23 and loads crossbeam 24; Described terminal pad 23 has the flange hole that three horizontal, two, both sides flange hole is connected with two fluid cylinders 21 respectively, and intermediate method flange aperture is connected with Sealed casing pipe 8; Described loading crossbeam 24 has the circular hole that three horizontal, two, both sides circular hole is connected with two plungers 22 respectively, and middle circular hole is connected with loading short circuit 6, loads crossbeam 24 and is fixed by plunger 22 and terminal pad 23.
Described dolly 4 comprises wheel 41, the chassis 42 be arranged on wheel 41, be arranged on that height on chassis 42 regulates cylinder 43, with the righting roller 45 highly regulating cylinder 43 to be connected and be arranged on the adjusting handle 44 highly regulated between cylinder 43 and righting roller 45, this dolly 4 has two.
And described loading short circuit 6 is the right cylinder with a step, there is outer acme thread its upper end, and there is inner trapezoidal thread lower end.Described loading polished rod 7 be about one all with the right cylinder of outer acme thread.Described Sealed casing pipe 8 is cylindrical tube that there is flange a upper end, there is sleeve external thread lower end, is provided with O-ring seal 2 81 between its upper flanges center pit and loading polished rod 7; Sealed casing pipe 8 upper flanges is connected with the terminal pad 23 of wriggling loading structure.Described bump joint 9 is pipes that there is inner sleeve screw thread a upper end, there is flange lower end.Described test casing 13 be a upper and lower side all with the pipe of flange, its upper and lower side flange is all fixedly connected with blind flange 14 with bump joint 9 times end flanges with bolted cap (BC) respectively by bolt; Experimentally need, the test casing 13 of different size and length can be changed.Described variable buckle joint 12 is pipes that there is inner trapezoidal thread a upper end, there is outer tubing thread lower end, is provided with O-ring seal 1 between this variable buckle joint 12 upper end and loading polished rod 7; Variable buckle joint 12 lower end joint test instrument.Described blind flange 14 is a ring flange with pipe thread central through hole.
First test instrument is connected to the lower end of variable buckle joint 12 during the experiment of this utility model, then the lower end of the upper end of test casing 13 and bump joint 9 is connected, test fixture mechanism is placed in the righting roller 45 of dolly 4, the height highly regulating cylinder 43 is regulated by adjusting handle 44, make test fixture mechanism concentric with the intermediate method flange aperture of wriggling loading structure terminal pad 23, with bolt, it is connected with terminal pad 23, adjustment loads crossbeam 24, make to load short circuit 6 and enter the interstitial hole loading crossbeam 24, tighten pressure cap 5, loading short circuit 6 is fixed on and loads on crossbeam 24, pipe core inlet opening 71, epicoele inlet opening 91, cavity of resorption inlet opening 92 are connected respectively on corresponding hydraulic line.
Send instruction by central processing system CPU and make pipe core inlet opening 71 feed liquor, after reaching certain pressure, set test instrument; Afterwards, central processing system CPU controls to make epicoele inlet opening 91 and cavity of resorption inlet opening 92 feed liquor respectively, stops feed liquor (epicoele, cavity of resorption test pressure value scope 0-70MPa) after reaching setting test pressure; Now, Long-distance Control loads fluid cylinder assembly 2 and applies power to loading polished rod 7, makes to load polished rod 7 motoring ring test instrument and moves reciprocatingly, simulate the wriggling operating mode with pressure of actual tubing string.Because liquid is incompressible, when test instrument to-and-fro movement, the two-way pressure of instrument can change, and now central processing system CPU controls blowdown valve 19 or hydraulic pump 16 according to pressure monitoring situation and energy storage device 15 works.When the pressure of monitoring is higher than setting test pressure, control blowdown valve 19 and open, slow pressure release is to test pressure; When monitor pressure lower than setting test pressure time, control energy storage dress, 15 and hydraulic pump 16 work make pressure rise to test pressure.
In sum, the utility model can realize the Oil/gas Well instruments such as packer and test at the wriggling of down-hole high pressure operating mode, thus more press close to the actual working state of instrument in down-hole, the research and development for subsurface tools such as packers provide experiment porch, solve actual production problem.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.
Claims (10)
1. a subsurface tool dynamic performance experiment pick-up unit, comprises wriggling load maintainer, test fixture mechanism and observing and controlling mechanism, it is characterized in that:
Described wriggling load maintainer is made up of pedestal (1), the loading fluid cylinder assembly (2) be arranged on pedestal (1), guide rail (3) and the dolly (4) be arranged on guide rail (3), described guide rail (3) is arranged on the side of pedestal (1), aligns with the axis of pedestal (1) in the axis of guide rail (3);
Described test fixture mechanism is by pressure cap (5), load short circuit (6), load polished rod (7), Sealed casing pipe (8), bump joint (9), variable buckle joint (12), test casing (13), blind flange (14) forms, described loading short circuit (6) upper end is connected with pressure cap (5), its lower end is connected with loading polished rod (7), described loading polished rod (7) upper end is provided with pipe core inlet (71), described loading polished rod (7) inside is provided with pipe core, this pipe core upper end communicates with pipe core inlet (71), its lower end extends to and loads polished rod (7) lower surface, described loading polished rod (7) lower end is connected with variable buckle joint (12), described Sealed casing pipe (8) is socketed on the outer wall of loading polished rod (7), described Sealed casing pipe (8) upper end is connected with loading fluid cylinder assembly (2), joint flange joint (9) upper end, Sealed casing pipe (8) lower end, described bump joint (9) upper end is provided with epicoele inlet opening (91), joint test sleeve pipe (13) upper end, described bump joint (9) lower end, the lower end of described loading polished rod (7) is placed in test casing (13), described test casing (13) lower end connects blind flange (14), the center of described blind flange (14) is provided with cavity of resorption inlet opening (92), this cavity of resorption inlet opening (92) communicates with test casing (13), described test casing (13) is placed on dolly (4),
Described observing and controlling mechanism comprises three groups of control device and central processing system CPU, often organize control device and comprise energy storage device (15), hydraulic pump (16), ball-and-seat (17), pressure transducer (18) and blowdown valve (19), described pressure transducer (18) one end is connected with energy storage device (15) one end by ball-and-seat (17), described energy storage device (15) other end is connected with hydraulic pump (16), the other end of the pressure transducer (18) in described three groups of control device by pipeline respectively with pipe core inlet (71), epicoele inlet opening (91) is connected with cavity of resorption inlet opening (92), described blowdown valve (19) is arranged on pipeline, the described hydraulic pump (16) often organized in control device, pressure transducer (18) and blowdown valve (19) are all electrically connected with central processing system CPU.
2. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, is characterized in that: described loading fluid cylinder assembly (2) comprises two fluid cylinders (21), two plungers (22), terminal pads (23) and loads crossbeam (24);
Described terminal pad (23) has the flange hole that three horizontal, two, both sides flange hole is connected with two fluid cylinders (21) respectively, and intermediate method flange aperture is connected with Sealed casing pipe (8);
Described loading crossbeam (24) has the circular hole that three horizontal, two, both sides circular hole is connected with two plungers (22) respectively, and middle circular hole is connected with loading short circuit (6); Load crossbeam (24) to be fixed by plunger (22) and terminal pad (23).
3. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, it is characterized in that: described dolly (4) comprises wheel (41), the chassis (42) be arranged on wheel (41), be arranged on that height on chassis (42) regulates cylinder (43), with the righting roller (45) highly regulating cylinder (43) to be connected and be arranged on the adjusting handle (44) highly regulated between cylinder (43) and righting roller (45), this dolly (4) has two.
4. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, is characterized in that: described loading short circuit (6) is the right cylinder with a step, and there is outer acme thread its upper end, and there is inner trapezoidal thread lower end.
5. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, is characterized in that: described loading polished rod (7) be about one all with the right cylinder of outer acme thread.
6. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, it is characterized in that: described Sealed casing pipe (8) is the cylindrical tube that there is flange a upper end, there is sleeve external thread lower end, between its upper flanges center pit and loading polished rod (7), be provided with O-ring seal two (81).
7. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, is characterized in that: described bump joint (9) is the pipe that there is inner sleeve screw thread a upper end, there is flange lower end.
8. the subsurface tool dynamic performance experiment pick-up unit as described in claim 1 or 7, it is characterized in that: described test casing (13) be a upper and lower side all with the pipe of flange, its upper and lower side flange is all fixedly connected with blind flange (14) with end flanges under bump joint (9) with bolted cap (BC) respectively by bolt.
9. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, it is characterized in that: described variable buckle joint (12) is the pipe that there is inner trapezoidal thread a upper end, there is outer tubing thread lower end, between this variable buckle joint (12) and loading polished rod (7), be provided with O-ring seal one (72).
10. subsurface tool dynamic performance experiment pick-up unit as claimed in claim 1, is characterized in that: described blind flange (14) is a ring flange with pipe thread central through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687274.8U CN204255623U (en) | 2014-11-14 | 2014-11-14 | A kind of subsurface tool dynamic performance experiment pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687274.8U CN204255623U (en) | 2014-11-14 | 2014-11-14 | A kind of subsurface tool dynamic performance experiment pick-up unit |
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| Publication Number | Publication Date |
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| CN204255623U true CN204255623U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420687274.8U Withdrawn - After Issue CN204255623U (en) | 2014-11-14 | 2014-11-14 | A kind of subsurface tool dynamic performance experiment pick-up unit |
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| CN (1) | CN204255623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374559A (en) * | 2014-11-14 | 2015-02-25 | 中国石油天然气股份有限公司 | Downhole tool dynamic property test detecting device |
| CN106812519A (en) * | 2016-12-28 | 2017-06-09 | 中国石油天然气股份有限公司 | The experimental rig of downhole tool and the test system of downhole tool |
-
2014
- 2014-11-14 CN CN201420687274.8U patent/CN204255623U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374559A (en) * | 2014-11-14 | 2015-02-25 | 中国石油天然气股份有限公司 | Downhole tool dynamic property test detecting device |
| CN104374559B (en) * | 2014-11-14 | 2017-04-05 | 中国石油天然气股份有限公司 | A kind of downhole tool dynamic performance experiment detection means |
| CN106812519A (en) * | 2016-12-28 | 2017-06-09 | 中国石油天然气股份有限公司 | The experimental rig of downhole tool and the test system of downhole tool |
| CN106812519B (en) * | 2016-12-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Testing device for downhole tool and testing system for downhole tool |
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Granted publication date: 20150408 Effective date of abandoning: 20170405 |