CN110566158A - Single stroke oil pipe pressure testing valve - Google Patents

Single stroke oil pipe pressure testing valve Download PDF

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Publication number
CN110566158A
CN110566158A CN201910868948.1A CN201910868948A CN110566158A CN 110566158 A CN110566158 A CN 110566158A CN 201910868948 A CN201910868948 A CN 201910868948A CN 110566158 A CN110566158 A CN 110566158A
Authority
CN
China
Prior art keywords
ball valve
seat ring
valve assembly
sealing
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910868948.1A
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Chinese (zh)
Inventor
张锦锦
石海兵
张亭
杨丽丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoji Changyou Petroleum Equipment Co Ltd
Original Assignee
Baoji Changyou Petroleum Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baoji Changyou Petroleum Equipment Co Ltd filed Critical Baoji Changyou Petroleum Equipment Co Ltd
Priority to CN201910868948.1A priority Critical patent/CN110566158A/en
Publication of CN110566158A publication Critical patent/CN110566158A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00Valve arrangements for boreholes or wells
    • E21B34/06Valve arrangements for boreholes or wells in wells
    • E21B34/12Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Check Valves (AREA)
  • Taps Or Cocks (AREA)

Abstract

The utility model provides a single stroke oil pipe pressure test valve, this single stroke oil pipe pressure test valve is a full latus rectum instrument, through the top connection, ball valve overcoat and spline lock sleeve together the axial reciprocate and promote the operating pin and realize closing and opening the ball valve, can lock closing and opening of ball valve, the back is closed to the ball valve, single stroke oil pipe pressure test valve carries out the pressure testing to working string, the back is opened to the ball valve, make oil pipe post link up from top to bottom, when carrying oil pipe post, liquid in the oil pipe flows in the well, prevent that fluid from being proposed ground, non-staining environment, moreover, the steam generator is simple in structure, high durability and convenient operation.

Description

Single stroke oil pipe pressure testing valve
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a single-stroke oil pipe pressure testing valve.
Background
In the operation of the petroleum industry, according to the operation requirement, in order to achieve the purpose of normal construction, the compressive strength of the underground working pipe column of the operation construction well and the overall sealing performance of the pipe column are often required to be verified, and whether the oil pipe meets the requirement or not is checked. The existing method for testing the pressure of the working pipe column adopts a one-way valve structure, so that the pipe column above a one-way valve is a closed space, the pressure of the working pipe column can be tested, but in the method, after the pressure test is completed, liquid flow can only flow from bottom to top and can not flow from top to bottom, so that positive circulation construction operation can not be carried out, and when the working pipe column is lifted, the liquid in an oil pipe can not flow into a well and can be lifted out of the ground, so that the environmental pollution is caused. There is therefore a need for improvements.
disclosure of Invention
The technical problems solved by the invention are as follows: the invention provides a single-stroke oil pipe pressure testing valve, which is characterized in that an upper joint, a ball valve outer sleeve and a spline lock sleeve axially move up and down together to push an operating pin to close and open a ball valve and lock the opening of the ball valve, the ball valve is closed to realize pressure testing of a working pipe column, the ball valve is opened, an oil pipe column is communicated up and down, when the oil pipe column is lifted, liquid in the oil pipe flows into a well and cannot be lifted out of the ground, the environment is not polluted, the structure is simple, the structural performance is stable, and the use is convenient.
The technical scheme adopted by the invention is as follows: the single-stroke oil pipe pressure testing valve comprises an upper joint, an operation mandrel, a spline lock sleeve, a lower joint and a ball valve assembly; the spline lock sleeve is slidably sleeved in the middle of the outer surface of the operation mandrel, the outer surface of the lower part of the spline lock sleeve is slidably sleeved with a lock block and a shear pin body, the lock block is arranged on the upper part of the shear pin body, a tension spring is sleeved outside the lock block, and the lower end of the operation mandrel is fixedly connected with a lower joint; the ball valve assembly comprises an operating pin, the lower end of the ball valve assembly is fixedly connected with the upper end of an operating mandrel, the upper end of the ball valve assembly is slidably sleeved with an upper connector, the operating pin is in adaptive connection with the ball valve assembly and drives the ball valve assembly to be opened or closed, the operating pin is positioned between a shoulder at the lower end of the upper connector and a shoulder at the upper end of a spline lock sleeve, a ball valve outer cylinder is sleeved outside the ball valve assembly, the upper end of the ball valve outer cylinder is fixedly connected with the upper connector, and the lower end of the ball valve outer cylinder is; the integrated axial of top connection, ball valve urceolus and spline lock tube reciprocates and promotes the action pin and drive the ball valve assembly and close or open, spline lock tube and operation mandrel pass through the screw connection and make the ball valve assembly fix a position and close or open the state, the shear pin body is connected with the operation mandrel through the shear pin, under annular pressure the shear pin is cut off and the shear pin body promotes the locking piece rebound card and goes into the slot on the spline lock tube and realize the locking of opening to the ball valve assembly.
In a preferred mode of the technical scheme, the ball valve assembly further comprises a ball valve component, an upper seat ring and a lower seat ring, the ball valve component is arranged between the upper seat ring and the lower seat ring, the outer parts of the upper seat ring and the lower seat ring are connected through a C-shaped sleeve, a seat spring is arranged between the ball valve component and the lower seat ring, the elastic force of the seat spring is used for compensating a gap of the ball valve assembly through the connection of the C-shaped sleeve to play a sealing role, the lower end of the lower seat ring is fixedly connected with the upper end of an operation mandrel, the upper end of the upper seat ring is sleeved with a joint in a sliding manner, the pin head of the operation pin is inserted into an operation hole in the upper end of the ball valve component, and the operation pin,
To above-mentioned technical scheme's preferred mode, still the sliding sleeve has the locking piece cover on the spline lock tube lower part surface, locking piece cover and shear pin body upper end fixed connection just will lock the piece capping, shear pin body outside sliding sleeve has the shear pin cover.
In a preferable mode of the technical scheme, an upper sealing ball seat hermetically attached to the ball valve assembly is arranged on the upper seat ring, a lower sealing ball seat hermetically attached to the ball valve assembly is arranged on the lower seat ring, and the upper seat ring and the upper sealing ball seat as well as the lower seat ring and the lower sealing ball seat are hermetically connected through O-shaped sealing rings III; the seat spring is arranged between the lower seat ring and the lower sealing ball seat; the two ends of the operation mandrel are fixedly connected with the lower seat ring and the lower joint in a sealing mode through O-shaped sealing rings IV, and the two ends of the outer cylinder of the ball valve are fixedly connected with the upper joint and the spline lock sleeve in a sealing mode through O-shaped sealing rings I.
In a preferable mode of the technical scheme, the upper seat ring and the upper joint as well as the spline lock sleeve and the operation mandrel are in sliding sealing connection through a support seal I and an O-shaped seal ring II; the shear pin body is connected with the operation mandrel in a sliding and sealing mode through two groups of sliding sealing structures, namely a supporting seal II, an O-shaped sealing ring V, a supporting seal III and an O-shaped sealing ring VI.
Compared with the prior art, the invention has the advantages that:
1. The single-stroke oil pipe pressure testing valve in the scheme is a full-bore tool, the upper connector, the ball valve outer sleeve and the spline lock sleeve axially move up and down together to push the operating pin to close and open the ball valve and lock the opening of the ball valve assembly, after the ball valve is closed, the single-stroke oil pipe pressure testing valve tests the pressure of a working pipe column, after the ball valve is opened, the oil pipe column is communicated up and down, and when the oil pipe column is lifted, liquid in the oil pipe flows into a well and cannot be lifted out of the ground, so that the environment is not polluted;
2. This scheme is closed and is opened through the reciprocating motion drive single stroke oil pipe pressure testing valve of working string, when moving in the well, use the screw with the ball valve location at the open or closed position, after the screw is cuted, reciprocating motion will operate the ball valve, the ball valve can be locked in the open position before going out of the well, the shear pin is cut in the annular space pressurization, the shear pin body upwards slides, make the locking piece be absorbed in the slot of spline lock sleeve, the ball valve will be locked and opened, when the tubular column was proposed from the well, discharge liquid in the tubular column, closing and opening and locking simple structure of single stroke oil pipe pressure testing valve, high durability and convenient operation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following examples are given to facilitate a better understanding of the invention, but do not limit the invention. The connection modes of the components in the following embodiments are all conventional connection modes unless otherwise specified; the components used in the following examples are commercially available unless otherwise specified.
In the present invention, without going to the contrary, it is understood that: the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that the terms "mounted," "connected," "disposed," and "provided" are to be construed broadly unless otherwise specifically stated or limited. For example, the connecting and arranging can be fixed, or can be detachable, or integrally connected and arranged. May be a mechanical connection; may be directly connected or may be indirectly connected through other intermediate members. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention is described in detail,
the single-stroke oil pipe pressure testing valve comprises an upper joint 1, an operation mandrel 7, a spline lock sleeve 8, a lower joint 16 and a ball valve assembly. The spline lock sleeve 8 is slidably sleeved in the middle of the outer surface of the operation mandrel 7, a lock block sleeve 12, a lock block 10 and a shear pin body 14 are slidably sleeved on the outer surface of the lower part of the spline lock sleeve 8, the lock block 10 is arranged on the upper part of the shear pin body 14, a tension spring 11 is sleeved outside the lock block 10, the lock block sleeve 12 is fixedly connected with the upper end of the shear pin body 14 through a threaded structure and covers the lock block 10, the lower end of the operation mandrel 7 is fixedly connected with a lower joint 16 through a threaded structure, the upper part of the shear pin body 14 is slidably sleeved outside the spline lock sleeve 8, the lower part of the shear pin body 14 is slidably sleeved outside the operation mandrel 7, the axial sliding of the shear pin body 14 is limited through the upper end surface of the lower joint 16 and the shoulder of the operation mandrel 7, and a shear pin sleeve 13 is sleeved; the ball valve assembly comprises a ball valve component 17, an upper seat ring 3, a lower seat ring 5 and an operating pin 4, wherein the ball valve component 17 is arranged between the upper seat ring 3 and the lower seat ring 5, the outer parts of the upper seat ring 3 and the lower seat ring 5 are connected through a C-shaped sleeve 6, the lower end of the lower seat ring 5 is connected with the upper end of an operating mandrel 7 through a threaded structure, the upper end of the upper seat ring 3 is slidably sleeved with an upper connector 1, a pin head 401 of the operating pin 4 is inserted into an operating hole 1701 at the upper end of the ball valve component 17, the operating pin 4 is tightly attached to the outer parts of the upper seat ring 3 and the lower seat ring 5, the two ends of the operating pin 4 are located between a shoulder at the lower end of the upper connector 1 and a shoulder at the upper end of a spline lock sleeve 8, a ball valve outer cylinder 2 is sleeved outside the ball valve assembly, the upper end of the ball valve outer cylinder 2 is fixedly. The upper connector 1, the ball valve outer cylinder 2 and the spline lock sleeve 8 move up and down axially together to push the operation pin 4 to close and open the ball valve assembly 17, the spline lock sleeve 8 is connected with the operation mandrel 7 through a screw 9 to enable the ball valve assembly 17 to be positioned in a closed or open state, the spline lock sleeve 8 is provided with a screw hole, and the operation mandrel 7 is axially provided with a plurality of clamping grooves matched with the screw 9. The shear pin body 14 is connected with the operation spindle 7 through the shear pin 15, the shear pin hole is formed in the shear pin body 14, a shear pin groove matched and clamped with the shear pin 15 is formed in the operation spindle 7, the shear pin 15 is sheared under annular pressurization, the shear pin body 14 slides upwards to push the lock block 10 to be clamped into the groove 801 in the spline lock sleeve 8, and the ball valve assembly 17 is unlocked and locked.
The upper seat ring 3 is provided with an upper sealing ball seat hermetically attached to the ball valve assembly 17, the lower seat ring 5 is provided with a lower sealing ball seat hermetically attached to the ball valve assembly 17, and the upper seat ring 3 and the upper sealing ball seat as well as the lower seat ring 5 and the lower sealing ball seat are hermetically connected through O-shaped sealing rings III 22; still through seat spring 18 elastic connection between lower seat circle 5 and the lower seal receptacle, operation mandrel 7 both ends all realize through O shape sealing washer IV 23 with lower seat circle 5 and lower clutch 16's sealed fixed connection, ball valve overcoat 2 both ends all realize through O shape sealing washer I20 with the sealed fixed connection of top connection 1 and spline lock sleeve 8.
The upper seat ring 3 and the upper joint 1 and the spline lock sleeve 8 and the operation mandrel 7 are in sliding sealing connection through a support seal I19 and an O-shaped seal ring II 21; the shear pin body 14 and the operation mandrel 7 are connected in a sliding and sealing mode through two groups of sliding sealing structures, namely a supporting seal II 24, an O-shaped sealing ring V25, a supporting seal III 26 and an O-shaped sealing ring VI 27.
The assembly process of the invention: clamping the spline lock sleeve 8 by a vice, sliding the lock block sleeve 12 onto the spline lock sleeve 8, installing the operation mandrel 7 into the spline lock sleeve 8, and sliding the locking mechanisms such as the shear pin sleeve 13, the shear pin body 14, the lock block sleeve 12, the lock block 10, the tension spring 11 and the like onto the spline lock sleeve 8; assembling the lower seat ring 5 to the upper part of the operation mandrel 7, lubricating all parts in the ball valve assembly; fixing a ball valve 17 between an upper seat ring 3 and a lower seat ring 5, enabling the ball valve 17 to be in an open position, fixing a ball valve hole to enable the ball valve to be in a fully open state, hooking a C-shaped sleeve 6 into an upper seat ring groove and a lower seat ring groove, inserting a pin head 401 of an operating pin 4 into an operating hole 1701 at the upper end of the ball valve 17, enabling the operating pin 4 to be tightly attached to the seat rings, enabling the lower part of the operating pin 4 to be in contact with a shoulder of a spline lock sleeve 8, lubricating all ball valve assemblies, sliding an outer ball valve barrel 2 onto the ball valve assemblies, connecting the outer ball valve barrel 2 with the spline lock sleeve 8, connecting an upper connector 1 onto the outer ball valve barrel 2, sliding a lock block sleeve 12 towards the upper connector 1, then using a tension spring 11 to install a lock block mechanism at the upper end of a shear pin body 14, sliding a shear pin sleeve 13 onto the shear pin body 14, sliding each component to the lower end of an operating, a shear pin 15 is inserted into the shear pin body 14, the shear pin 15 is dropped into the shear pin groove by tapping the shear pin body 14 with a hammer, the lock block sleeve 12 is connected to the shear pin body 14, and the lower joint 16 is mounted on the operating spindle 7. Before the pressure testing valve runs in a well, the ball valve 17 is fixed at an opening or closing position, is aligned with a screw hole in the spline lock sleeve 8 and a corresponding groove in the operation mandrel 7, and is inserted with a required screw 9.
The working principle of the invention is as follows: install this single stroke oil pipe pressure testing valve on working string, the tubular column of pushing down makes top connection 1 promote ball valve urceolus 2 promote spline lock sleeve 8 again and cut screw 9, then lift the working string, this single stroke oil pipe pressure testing valve is in tensile state for this effect, and simultaneously, top connection 1, ball valve overcoat 2 and spline lock sleeve 8 are the axial up-shifting together, 8 upper end circular bead of spline lock sleeve promote operating pin 4 to move up, operating pin 4 shifts up pulling ball valve 17 clockwise rotation, realize that ball valve 17 closes, just at this moment can accomplish oil pipe's pressure testing work to the working string pressurization. After the pressure testing is accomplished, transfer tubular column weight, make this single stroke oil pipe pressure testing valve be in compression state, and simultaneously, top connection 1, ball valve overcoat 2 and spline lock tube 8 are the axial together and move down, top connection 1 lower extreme circular bead promotes operating pin 4 and moves down, operating pin 4 moves down and pulls ball valve 17 anticlockwise rotation, realize that ball valve 17 opens, with the ball valve by the locking in the open position before going out the well, so need annular space pressurization to cut shear pin 15, under annular space pressurization effect, shear pin body 14 upwards slides, promote in the slot that the locking piece 10 is absorbed in spline lock tube 8, in case the locking piece 10 is absorbed in the slot, ball valve 17 will be locked and open, when the tubular column was proposed from the well, discharge liquid in the tubular column to the well.
The invention relates to a full-bore tool which can lock the closing and opening of a ball valve, wherein after the ball valve is closed, a single-stroke oil pipe pressure testing valve is used for testing the pressure of a working pipe column, when a leakage point is positioned near the ground, an operator can find a leakage point of an oil pipe, after the ball valve is opened, the oil pipe column is communicated up and down, and when the oil pipe column is lifted, liquid in the oil pipe flows into a well and cannot be lifted out of the ground, so that the environment is not polluted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. single stroke oil pipe pressure test valve, its characterized in that: comprises an upper joint (1), an operation mandrel (7), a spline lock sleeve (8), a lower joint (16) and a ball valve assembly; the spline lock sleeve (8) is in sliding fit with the middle of the outer surface of the operation mandrel (7), a lock block (10) and a shear pin body (14) are in sliding fit with the outer surface of the lower part of the spline lock sleeve (8), the lock block (10) is arranged on the upper part of the shear pin body (14), a tension spring (11) is sleeved outside the lock block (10), and the lower end of the operation mandrel (7) is fixedly connected with a lower connector (16); the ball valve assembly comprises an operating pin (4), the lower end of the ball valve assembly is fixedly connected with the upper end of an operating mandrel (7), an upper connector (1) is slidably sleeved on the upper end of the ball valve assembly, the operating pin (4) is in adaptive connection with the ball valve assembly and drives the ball valve assembly to be opened or closed, the operating pin (4) is positioned between a shoulder at the lower end of the upper connector (1) and a shoulder at the upper end of a spline lock sleeve (8), a ball valve outer cylinder (2) is sleeved outside the ball valve assembly, the upper end of the ball valve outer cylinder (2) is fixedly connected with the upper connector (1), and the lower end of the ball valve outer cylinder is fixedly connected with the; go up joint (1), ball valve urceolus (2) and the integrative axial of spline lock tube (8) and reciprocate and promote operating pin (4) and drive the ball valve assembly and close or open, spline lock tube (8) and operation mandrel (7) are connected through screw (9) and are made the ball valve assembly location close or open the state, it is connected with operation mandrel (7) through shearing round pin (15) to shear round pin body (14), adds under the pressure in the annular space shear pin (15) are sheared and shear round pin body (14) promote locking piece (10) upward movement card and realize opening the locking to the ball valve assembly in slot (801) on spline lock tube (8).
2. The single stroke oil tube pressure test valve of claim 1, wherein: the ball valve assembly also comprises a ball valve component (17), an upper seat ring (3) and a lower seat ring (5), the ball valve component (17) is arranged between the upper seat ring (3) and the lower seat ring (5), the upper seat ring (3) is connected with the lower seat ring (5) through a C-shaped sleeve (6), a seat spring (18) is arranged between the ball valve component (17) and the lower seat ring (5), the elasticity of the seat spring (18) is compensated for the clearance of the ball valve assembly through the connection of the C-shaped sleeve (6) to play a sealing role, the lower end of the lower seat ring (5) is fixedly connected with the upper end of an operation mandrel (7), the upper end of the upper seat ring (3) is glidingly sleeved with a joint (1), a pin head (401) of the operating pin (4) is inserted into an operating hole (1701) at the upper end of the ball valve assembly (17), the operating pin (4) is tightly attached to the outer surfaces of the upper seat ring (3) and the lower seat ring (5).
3. The single stroke oil tube pressure test valve of claim 2, wherein: the spline lock sleeve is characterized in that a lock block sleeve (12) is further arranged on the outer surface of the lower portion of the spline lock sleeve (8) in a sliding mode, the lock block sleeve (12) is fixedly connected with the upper end of the shear pin body (14) and covers the lock block (10), and a shear pin sleeve (13) is arranged on the outer portion of the shear pin body (14) in a sliding mode.
4. The single stroke oil tube pressure test valve of claim 3, wherein: an upper sealing ball seat hermetically attached to the ball valve assembly (17) is arranged on the upper seat ring (3), a lower sealing ball seat hermetically attached to the ball valve assembly (17) is arranged on the lower seat ring (5), and the upper seat ring (3) and the upper sealing ball seat as well as the lower seat ring (5) and the lower sealing ball seat are hermetically connected through O-shaped sealing rings III (22); the seat spring (18) is arranged between the lower seat ring (5) and the lower sealing seat; the two ends of the operation mandrel (7) are fixedly connected with the lower seat ring (5) and the lower connector (16) in a sealing mode through O-shaped sealing rings IV (23), and the two ends of the ball valve outer cylinder (2) are fixedly connected with the upper connector (1) and the spline lock sleeve (8) in a sealing mode through O-shaped sealing rings I (20).
5. The single stroke oil tube pressure test valve of claim 3, wherein: the upper seat ring (3) and the upper joint (1) and the spline lock sleeve (8) and the operation mandrel (7) are in sliding sealing connection through a support seal I (19) and an O-shaped seal ring II (21); the shear pin body (14) is connected with the operation mandrel (7) in a sliding and sealing mode through two groups of sliding sealing structures, namely a supporting seal II (24), an O-shaped sealing ring V (25), a supporting seal III (26) and an O-shaped sealing ring VI (27).
CN201910868948.1A 2019-09-16 2019-09-16 Single stroke oil pipe pressure testing valve Pending CN110566158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910868948.1A CN110566158A (en) 2019-09-16 2019-09-16 Single stroke oil pipe pressure testing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910868948.1A CN110566158A (en) 2019-09-16 2019-09-16 Single stroke oil pipe pressure testing valve

Publications (1)

Publication Number Publication Date
CN110566158A true CN110566158A (en) 2019-12-13

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CN201910868948.1A Pending CN110566158A (en) 2019-09-16 2019-09-16 Single stroke oil pipe pressure testing valve

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Publication number Priority date Publication date Assignee Title
CN115704316A (en) * 2021-08-12 2023-02-17 中国石油化工股份有限公司 Throwing rod type pipe inspection device and application thereof

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CN205297471U (en) * 2015-12-08 2016-06-08 中国石油天然气股份有限公司 Pull-press type full-bore downhole switch valve
US20170335657A1 (en) * 2016-05-18 2017-11-23 DLA-Desheim Systems, Inc. Cement Valve
WO2017204801A1 (en) * 2016-05-25 2017-11-30 Halliburton Energy Services, Inc. Ball mechanism-increased / enhanced initial rotation-opening of ball
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US4522266A (en) * 1982-03-05 1985-06-11 Halliburton Company Downhole tester valve with resilient seals
US4627492A (en) * 1985-09-25 1986-12-09 Halliburton Company Well tool having latching mechanism and method of utilizing the same
US4700782A (en) * 1986-11-07 1987-10-20 Dresser Industries, Inc. Flow control valve for use in oil and gas wells and the like
CN2234503Y (en) * 1995-06-27 1996-09-04 宝鸡石油机械厂 Sliding sleeve balance circular pressure controlled ball test valve
CN201187291Y (en) * 2007-11-13 2009-01-28 宝鸡石油机械有限责任公司 Transposition power mechanism of ring pressure control test valve
CN201593396U (en) * 2010-01-12 2010-09-29 中国石化集团江汉石油管理局井下测试公司 Hydraulic well opening valve
CN202370480U (en) * 2011-12-26 2012-08-08 中国海洋石油总公司 Underground pressure test well opening valve tool suitable for annulus pressurization
CN203362112U (en) * 2013-06-07 2013-12-25 中国石油化工股份有限公司 Full-bore-type voltage-controlled underground well opening valve
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115704316A (en) * 2021-08-12 2023-02-17 中国石油化工股份有限公司 Throwing rod type pipe inspection device and application thereof

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CB03 Change of inventor or designer information

Inventor after: Zhang Jinjin

Inventor after: Zhao Liang

Inventor after: Shi Haibing

Inventor after: Zhang Ting

Inventor after: Yang Lili

Inventor before: Zhang Jinjin

Inventor before: Shi Haibing

Inventor before: Zhang Ting

Inventor before: Yang Lili

CB03 Change of inventor or designer information
CI02 Correction of invention patent application

Correction item: Inventor

Correct: Zhang Jinjin|Zhao Liang|Jing Jianping|Shi Haibing|Zhang Ting|Yang Lili

False: Zhang Jinjin|Zhao Liang|Jing Jianping|Zhang Ting|Yang Lili

Number: 25-02

Volume: 36

CI02 Correction of invention patent application
RJ01 Rejection of invention patent application after publication

Application publication date: 20191213

RJ01 Rejection of invention patent application after publication