CN110056325B - Pressure testing device and method for sucker rod pump oil production well mouth facility - Google Patents
Pressure testing device and method for sucker rod pump oil production well mouth facility Download PDFInfo
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- CN110056325B CN110056325B CN201910218925.6A CN201910218925A CN110056325B CN 110056325 B CN110056325 B CN 110056325B CN 201910218925 A CN201910218925 A CN 201910218925A CN 110056325 B CN110056325 B CN 110056325B
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000010985 leather Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003129 oil well Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 238000012856 packing Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 8
- 238000010998 test method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a pressure test device and a pressure test method for wellhead facilities of a sucker rod pump production well, which can realize the purpose of testing the wellhead facilities under low discharge capacity in the process of lifting a sucker rod, such as: the pressure testing of the well mouth of the components and devices such as the big four-way of the well mouth, the blowout preventer, the blowout pipeline and the like can be realized, thereby achieving the purposes of improving the operation timeliness and reducing the labor intensity of workers. The pressure test device comprises a pressure test sealing mechanism and a pipe rod connector, wherein the pressure test sealing mechanism is connected with the pipe rod connector through a reducing connector, a sealing ball and a circulation hole are arranged in the pipe rod connector, and the pipe rod connector can be connected with an underground sucker rod and an underground oil pipe; the pressure test sealing mechanism is provided with a leather cup and an oil pipe hanger, a tension cone and a force application pipe body are arranged between the oil pipe hanger and the leather cup, and the tension cone can move along the force application pipe body, expand the leather cup and seal the inner cavity of the downhole casing. The problem that pressure testing can not be carried out on well mouth facilities in the pumping rod lifting process in the prior art is solved, the operation timeliness is effectively improved, and the potential safety hazard of well control accidents is reduced.
Description
Technical Field
The invention relates to a pressure test device and a pressure test method for a wellhead of a petroleum industry production well, in particular to a pressure test device and a pressure test method for wellhead facilities of a sucker rod pump production well, which can realize the purpose of testing the wellhead facilities under low discharge capacity in the process of lifting a sucker rod, such as: the pressure testing of the well mouth of the components and devices such as the big four-way of the well mouth, the blowout preventer, the blowout pipeline and the like can be realized, thereby achieving the purposes of improving the operation timeliness and reducing the labor intensity of workers.
Background
Because the oil production well of the sucker rod pump in the petroleum industry does not have a special well mouth pressure test device, the sucker rod in the well can not test the pressure of well mouth facilities, because the sucker rod in the well can not be hung and the annular space between the oil pipe and the sleeve can not be sealed, the pressure test vehicle can be utilized to respectively test the pressure of the well mouth facilities after all the sucker rods are pulled out.
At present, in the process of pump inspection operation of a sucker rod pump oil production well in the petroleum industry, firstly, well killing fluid is injected into a stratum, then all sucker rods must be pulled out, a flange on a large four-way joint of a well head is disassembled, a well sealer is installed, and pressure testing can be respectively carried out on the joint of the large four-way joint of the well head, a casing short joint, the well sealer and a blowout manifold.
According to the current well control management regulations: after the blowout preventer is installed, construction can be carried out according to the pressure test standard strictly and after the pressure test is qualified, and the construction is not forbidden. If the operation time of the sucker rod is prolonged to night, the pressure test can be carried out on the wellhead facility only by the next day under the condition that the pressure test vehicle can not test the pressure in the well. Thus, the phenomenon of malfunction can occur, and the long-time shutdown at night can be caused. The long-time shutdown not only wastes time and reduces the operation timeliness, but also delays the next procedure, and the well killing fluid pollutes the stratum for a long time and can generate adverse effects on the yield of the oil well.
Therefore, it is very necessary to develop a pressure testing device which can perform well head facilities at any time in the process of pumping the sucker rod.
Disclosure of Invention
The invention aims to provide a pressure testing device and a pressure testing method for wellhead facilities of a sucker rod pump production well, which solve the problem that the pressure testing of the wellhead facilities cannot be carried out in the sucker rod lifting process in the prior art, thereby achieving the purposes of improving the operation time efficiency, reducing the operation cost and reducing the labor intensity of workers.
In order to achieve the purpose, the technical solution of the invention is as follows:
the pressure test device of the sucker rod pump oil production well mouth facility comprises a pressure test sealing mechanism and a pipe rod connector, wherein the pressure test sealing mechanism is connected with the pipe rod connector through a reducing connector, a sealing ball and a circulation hole are arranged in the pipe rod connector, and the pipe rod connector can be connected with an underground sucker rod and an oil pipe; the pressure test sealing mechanism is provided with a leather cup and an oil pipe hanger, a communicating hole is arranged in the body of the oil pipe hanger, a tension cone and a force application pipe body are arranged between the oil pipe hanger and the leather cup, and the tension cone can move along the force application pipe body, expand the leather cup and seal the inner cavity of the downhole casing.
A pressure test method is used for a pressure test device of a sucker rod pump oil production well wellhead facility, and comprises the following steps:
A. disassembling an upper flange of a large four-way of a wellhead, and mounting a semi-full sealing blowout preventer in a reversing manner according to an operation standard;
B. the well sucker rod is used for pulling out the original well inner oil pipe hanger, the pressure test device of the well mouth facility is lifted by the lifting short joint and is connected with the well sucker rod through the sucker rod connecting hoop;
C. the oil pipe is connected with an oil pipe in the well through an oil pipe connecting thread;
D. slowly lowering the pressure testing device of the wellhead facility, and hanging and seating the oil pipe into the large four-way of the wellhead;
E. manually rotating the operating end to enable the connecting body to drive the tensioning cone to move downwards and enter the leather cup to expand the tensioning cone, and sealing the inner cavity of the underground casing pipe;
F. closing a semi-seal flashboard of the semi-full seal blowout preventer, and pumping liquid into the casing valve for pressurization;
G. the pressure is pressed according to the rated pressure of the semi-full-sealing blowout preventer, the pressure is stabilized for 15 minutes, the pressure drop is less than 0.7 Mpa, and the sealing performance of a semi-sealing flashboard, a large four-way joint of a well mouth, a casing short joint and a blowout manifold of the semi-full-sealing blowout preventer is verified;
H. and (3) releasing the pressure, opening a semi-seal flashboard of the semi-full-seal blowout preventer, detaching the lifting short circuit, closing the full-seal flashboard of the semi-full-seal blowout preventer, continuously pumping liquid from the casing valve for pressurization, pressurizing according to the rated pressure of the semi-full-seal blowout preventer, stabilizing the pressure for 15 minutes, judging that the pressure drop is less than 0.7 Mpa, and verifying the sealing performance of the full-seal flashboard of the semi-full-seal blowout preventer.
The invention has the following remarkable using effects: the invention can flexibly arrange the pressure testing time of the wellhead facility, can test the pressure at any time in the process of starting the sucker rod, can conveniently arrange the pressure testing time in the daytime and avoid the nighttime, and effectively prevents various defects of pressure testing at night. The invention connects the pipe rod connector below the pressure test sealing mechanism, the pipe rod connector can be connected with the sucker rod and the oil pipe, and one end of the pipe rod connector is dual-purpose. The sealing ball seat in the pipe rod joint body can block a circulation hole and a down-flow passage of liquid, so that pressure test failure caused by the loss of an oil pipe connected below is prevented; when pressure exists in the oil pipe, the pressure can be released to the ground through the circulating hole. The pressure test sealing mechanism is provided with a tension cone, and the tension cone can be expanded to prevent liquid from being lost during pressure test by manually rotating the force application screw rod. The pressure testing device can be connected with the pipe columns of different types in the well through the reducer joints of different types or sizes, the problem that pressure testing cannot be carried out on well mouth facilities in the pumping rod process in the prior art is solved, the operation timeliness is effectively improved, well control safety accident potential is reduced, and the operation well occupying time is reduced. Meanwhile, the invention has convenient use and simple pressure test procedure, effectively reduces the labor intensity of workers, has obvious use effect and can obtain obvious economic benefit.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention is described in detail below with reference to the attached drawings, but the present invention is not limited thereto. Other equivalent variations using the present invention are intended to fall within the scope of the present invention.
Referring to fig. 1, the pressure testing device of the sucker rod pump production well mouth facility comprises a pressure testing sealing mechanism and a pipe rod connector, wherein the pressure testing sealing mechanism is connected with the pipe rod connector through a reducer union 15, a sealing ball 13 and a circulation hole 12 are arranged in the pipe rod connector, and the pipe rod connector can be connected with a sucker rod and an oil pipe in the well; the pressure test sealing mechanism is provided with a leather cup 8 and an oil pipe hanger 1, a communication hole 3 is arranged in the body of the oil pipe hanger 1, a tension cone 7 and a force application pipe body 19 are arranged between the oil pipe hanger 1 and the leather cup 8, and the tension cone 7 can move along the force application pipe body 19, expand the leather cup 8 and seal the inner cavity of a downhole casing.
The force application pipe body 19 is provided with an axial sliding groove, a force application screw 5 and a connector 6 are arranged in the pipe body, the connector 6 is installed outside the force application screw 5 through threads and connected with the tension cone 7 and can move along the axial sliding groove of the force application pipe body 19, so that the tension cone 7 can enter and exit the leather cup 8, and the leather cup 8 can be expanded and retracted.
The central hole of the connecting body 6 is provided with threads to be connected with the force application screw 5, the periphery of the body of the connecting body 6 is at least provided with two connecting rods, and the connecting rods can penetrate through the axial sliding grooves of the force application pipe body 19 to be connected with the tensioning cone 7.
The upper end of the force application screw rod 5 is an operation end 20, the lower end of the force application screw rod is provided with a limiting nut 18 and a locking pin 17, and the operation end 20 can be provided with a force application handle, a force application hand wheel, a wrench or a force application lever; and a retaining ring 4 is also arranged on the rod body of the force application screw rod 5 between the connecting body 6 and the operating end 20. The lower end of the force application screw 5 is provided with a limit nut 18 and a through hole which can be provided with a locking pin 17 for limiting the connecting body 6.
The baffle rings 4 are fixed on two sides of a baffle ring mounting table of the force application screw 5, and the baffle rings 4 can be fixed between the pipe orifice at the upper end of the force application pipe body 19 and the step of the inner cavity of the tubing hanger 1 or the baffle rings 4 are fixed in the pipe orifice at the upper end of the force application pipe body 19. After the baffle ring 4 is installed, the force application screw rod 5 can rotate but cannot move up and down, and the baffle ring 4 and the upper end pipe orifice of the force application pipe body 19 are fixed in a threaded connection mode, a welding mode and a radial screw fixing mode.
Two ends of the force application pipe body 19 are provided with external threads and are respectively connected with the oil pipe hanger 1 and the leather cup seat 16, and one end of the force application pipe body 19 connected with the leather cup seat 16 is also provided with a tensioning cone limiting table which can limit the downward moving stroke of the tensioning cone 7; the length of the axial sliding groove in the force application pipe body 19 is larger than the depth of the cup body of the cup 8, and the lower inner cavity of the cup seat 16 is in threaded connection with the reducer union 15.
The upper part body of the tensioning cone 7 is connected with the connecting body 6, the outer diameter of the lower part body of the tensioning cone is larger than the inner diameter of the leather cup 8, and the outer circle of the lower part of the tensioning cone is a cone-shaped body which is convenient to insert into the leather cup 8.
One end of the pipe rod connector is a reducing connector connecting end 14, the other end of the pipe rod connector is a sucker rod connecting hoop 11, and an inner cavity of the sucker rod connecting hoop 11 is provided with sucker rod connecting threads; be equipped with ball seat 9 in the body of pipe pole connector, body lower part excircle is equipped with oil pipe connecting thread 10, and ball sealer 13 installs in the top of ball seat 9, and circulation hole 12 link up from the slant in the pipe pole connector body in ball seat 9 and the sucker rod coupling 11 outside, and circulation hole 12 is equipped with two at least. The sucker rod connecting thread in the sucker rod connecting hoop 11 can be connected with a sucker rod in the well, and the oil pipe connecting thread 10 on the excircle of the lower part of the pipe rod connector body can be connected with an oil pipe in the well. The sealing ball 13 can block the circulation hole 2, so that pressure testing liquid can not flow downwards, pressure testing failure caused by leakage of an oil pipe connected below the pipe rod connector is prevented, and on the other hand, when pressure exists in the oil pipe, the pressure can be released to the ground through the circulation hole 12.
The outer circle of the oil pipe hanger 1 is a non-equal-diameter outer circle, the outer circle of the upper part is a conical body, the outer circle of the lower part is a cylinder, the communication holes 3 are axial through holes and are arranged in the conical body on the outer side of the cylinder, and at least two communication holes 3 are arranged; the conical body of the excircle of the upper part of the tubing hanger 1 is matched with the conical inner cavity of the large four-way of the wellhead, and at least one sealing ring 2 is arranged in the conical body.
The pressure testing method of the pressure testing device for the sucker rod pump oil production well mouth facility comprises the following steps:
A. disassembling an upper flange of a large four-way of a wellhead, and mounting a semi-full sealing blowout preventer in a reversing manner according to an operation standard;
B. the well sucker rod is used for pulling out the original well inner oil pipe hanger, the pressure test device of the well mouth facility is lifted by a lifting short joint and is connected with the well sucker rod through a sucker rod connecting hoop 11;
C. the oil pipe is connected with an oil pipe in the well through an oil pipe connecting thread 10;
D. slowly lowering the pressure testing device of the wellhead facility, and placing the tubing hanger 1 into the large four-way of the wellhead;
E. manually rotating the operation end 20 to enable the connecting body 6 to drive the tensioning cone 7 to descend, enter the leather cup 8 and expand the tensioning cone, and seal the inner cavity of the downhole sleeve;
F. closing a semi-seal flashboard of the semi-full seal blowout preventer, and pumping liquid into the casing valve for pressurization; liquid pumped from the casing valve enters the force application pipe body 19 and the reducer union 15 through the communication hole 3 and the axial sliding grooves in the force application pipe body 19, so that the upper space and the lower space of the oil pipe hanger 1 are completely filled with the liquid, the sealing ball 13 in the pipe rod union body is forced to be seated in the ball seat 9, and the circulation hole 12 is blocked;
G. according to the rated pressure of the semi-full-sealing blowout preventer, the pressure is stabilized for 15 minutes, the pressure drop is less than 0.7 Mpa, the semi-sealing flashboard, the large four-way of the wellhead, the casing short circuit and the sealing performance of the blowout manifold of the semi-full-sealing blowout preventer are verified, such as: the semi-full blowout preventer with the pressure of 21Mpa needs to be pressurized, and the semi-full blowout preventer with the pressure of 35Mpa needs to be pressurized;
H. and (3) releasing the pressure, opening a semi-seal flashboard of the semi-full-seal blowout preventer, detaching the lifting short circuit, closing the full-seal flashboard of the semi-full-seal blowout preventer, continuously pumping liquid from the casing valve for pressurization, pressurizing according to the rated pressure of the semi-full-seal blowout preventer, stabilizing the pressure for 15 minutes, judging that the pressure drop is less than 0.7 Mpa, and verifying the sealing performance of the full-seal flashboard of the semi-full-seal blowout preventer.
After the pressure test of the wellhead facility is qualified, the normal construction procedure can be continued.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Many variations, combinations, and modifications of the aspects disclosed herein are possible and are within the scope of the invention, which is, therefore, not to be limited by the above description.
Claims (9)
1. The pressure test device of the sucker rod pump oil production well mouth facility is characterized by comprising a pressure test sealing mechanism and a pipe rod connector, wherein the pressure test sealing mechanism is connected with the pipe rod connector through a reducing connector; the pressure test sealing mechanism is provided with a leather cup and an oil pipe hanger, a communicating hole is arranged in the body of the oil pipe hanger, a tension cone and a force application pipe body are arranged between the oil pipe hanger and the leather cup, the tension cone can move along the force application pipe body to expand the leather cup, and the leather cup seals the inner cavity of the downhole casing; the force applying pipe body is provided with an axial chute, a force applying screw rod and a connector are arranged in the force applying pipe body, the connector is installed outside the force applying screw rod through threads and connected with the tensioning cone, and the connector can move along the axial chute of the force applying pipe body to enable the tensioning cone to enter and exit the leather cup.
2. The pressure testing device of the wellhead facility of the sucker rod pump oil production well as defined in claim 1, wherein the central hole of the connecting body is provided with threads to connect with the force application screw, the body of the connecting body is provided at least two connecting rods at the periphery thereof, and the connecting rods can pass through the axial sliding grooves of the force application tube body to connect with the tension cone.
3. The pressure test device of the sucker-rod pump oil production well head facility according to claim 1 or 2, wherein the upper end of the force application screw rod is an operation end, the lower end of the force application screw rod is provided with a limit nut and a locking pin, and the operation end can be provided with a force application handle, a force application hand wheel, a wrench or a force application lever; and a retaining ring is also arranged on the rod body of the force application screw rod between the connecting body and the operating end.
4. The pressure testing apparatus of the wellhead installation of sucker-rod pump production well according to claim 3, wherein the retainer rings are fixed on both sides of the retainer ring mounting table of the force application screw, and the retainer rings can be fixed between the upper end orifice of the force application pipe body and the step of the inner cavity of the tubing hanger or fixed in the upper end orifice of the force application pipe body.
5. The pressure test device of the wellhead facility of the sucker rod pump oil production well as defined in claim 4, wherein the two ends of the force application tube body are provided with external threads and are respectively connected with the tubing hanger and the leather cup seat, and one end of the force application tube body connected with the leather cup seat is also provided with a tensioning cone limiting table; the length of the axial sliding groove in the force application pipe body is larger than the depth of the cup body of the leather cup, and the lower inner cavity of the leather cup seat is in threaded connection with the reducer union.
6. The pressure testing device of the sucker rod pump production well head facility as claimed in claim 3, wherein the upper body of the tension cone is connected to the connecting body, the outer diameter of the lower body of the tension cone is larger than the inner diameter of the packing cup, and the outer circle of the lower body is a cone.
7. The pressure test device of sucker-rod pump oil well wellhead equipment according to claim 1, wherein one end of the pipe rod connector is a reducer union connecting end, the other end is a sucker rod connecting hoop, and an inner cavity of the sucker rod connecting hoop is provided with a sucker rod connecting thread; be equipped with the ball seat in the body of tubular pole connector, body lower part excircle is equipped with oil pipe connecting thread, and the top at the ball seat is installed to the ball sealer, and the slant link up in the tubular pole connector body in circulation hole outside ball seat and sucker rod coupling, and the circulation hole is equipped with two at least.
8. The pressure test apparatus for a wellhead installation of a sucker rod pump production well according to claim 5, wherein the outer circumference of the tubing hanger is a non-equal diameter outer circumference, the upper outer circumference is a cone, the lower outer circumference is a cylinder, the communication holes are axial through holes provided in the cone outside the cylinder, and at least two of the communication holes are provided; the conical body of the excircle of the upper part of the tubing hanger is matched with the conical inner cavity of the large four-way of the wellhead, and at least one sealing ring is arranged in the conical body.
9. A method for testing a pressure in a sucker rod pump production well head facility according to claim 1, comprising the steps of:
A. disassembling an upper flange of a large four-way of a wellhead, and mounting a semi-full sealing blowout preventer in a reversing manner according to an operation standard;
B. the well sucker rod is used for pulling out the original well inner oil pipe hanger, the pressure test device of the well mouth facility is lifted by the lifting short joint and is connected with the well sucker rod through the sucker rod connecting hoop;
C. the oil pipe is connected with an oil pipe in the well through an oil pipe connecting thread;
D. slowly lowering the pressure testing device of the wellhead facility, and hanging and seating the oil pipe into the large four-way of the wellhead;
E. manually rotating the operating end to enable the connecting body to drive the tensioning cone to move downwards and enter the leather cup to expand the tensioning cone, and sealing the inner cavity of the underground casing pipe;
F. closing a semi-seal flashboard of the semi-full seal blowout preventer, and pumping liquid into the casing valve for pressurization;
G. the pressure is pressed according to the rated pressure of the semi-full-sealing blowout preventer, the pressure is stabilized for 15 minutes, the pressure drop is less than 0.7 Mpa, and the sealing performance of a semi-sealing flashboard, a large four-way joint of a well mouth, a casing short joint and a blowout manifold of the semi-full-sealing blowout preventer is verified;
H. and (3) releasing the pressure, opening a semi-seal flashboard of the semi-full-seal blowout preventer, detaching the lifting short circuit, closing the full-seal flashboard of the semi-full-seal blowout preventer, continuously pumping liquid from the casing valve for pressurization, pressurizing according to the rated pressure of the semi-full-seal blowout preventer, stabilizing the pressure for 15 minutes, judging that the pressure drop is less than 0.7 Mpa, and verifying the sealing performance of the full-seal flashboard of the semi-full-seal blowout preventer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218925.6A CN110056325B (en) | 2019-03-21 | 2019-03-21 | Pressure testing device and method for sucker rod pump oil production well mouth facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218925.6A CN110056325B (en) | 2019-03-21 | 2019-03-21 | Pressure testing device and method for sucker rod pump oil production well mouth facility |
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| CN110056325A CN110056325A (en) | 2019-07-26 |
| CN110056325B true CN110056325B (en) | 2021-04-20 |
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| CN201910218925.6A Active CN110056325B (en) | 2019-03-21 | 2019-03-21 | Pressure testing device and method for sucker rod pump oil production well mouth facility |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114458213B (en) * | 2021-11-16 | 2023-07-18 | 中国海洋石油集团有限公司 | Combined wellhead pressure testing mandrel and using method thereof |
| CN116481931B (en) * | 2023-06-26 | 2023-09-22 | 沧州市德泰克钻井装备有限公司 | Multistage blowout preventer shutoff pressure testing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7004252B2 (en) * | 2003-10-14 | 2006-02-28 | Schlumberger Technology Corporation | Multiple zone testing system |
| CN201068795Y (en) * | 2007-07-31 | 2008-06-04 | 梁伟成 | Wellhead pressure test device |
| CN202788728U (en) * | 2012-07-18 | 2013-03-13 | 中国石油化工股份有限公司 | Cup sealing device for pressure test of blowout preventers |
| CN103573205B (en) * | 2012-07-18 | 2015-12-09 | 中国石油化工股份有限公司 | A kind of blowout preventer pressure-testing sealing cup seal apparatus |
| CN105257280A (en) * | 2015-11-05 | 2016-01-20 | 大庆鸿润源石油科技开发有限公司 | Lifting pressure testing device |
-
2019
- 2019-03-21 CN CN201910218925.6A patent/CN110056325B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7004252B2 (en) * | 2003-10-14 | 2006-02-28 | Schlumberger Technology Corporation | Multiple zone testing system |
| CN201068795Y (en) * | 2007-07-31 | 2008-06-04 | 梁伟成 | Wellhead pressure test device |
| CN202788728U (en) * | 2012-07-18 | 2013-03-13 | 中国石油化工股份有限公司 | Cup sealing device for pressure test of blowout preventers |
| CN103573205B (en) * | 2012-07-18 | 2015-12-09 | 中国石油化工股份有限公司 | A kind of blowout preventer pressure-testing sealing cup seal apparatus |
| CN105257280A (en) * | 2015-11-05 | 2016-01-20 | 大庆鸿润源石油科技开发有限公司 | Lifting pressure testing device |
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| CN110056325A (en) | 2019-07-26 |
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