CN111980608B - Oil pipe blocking valve taking and delivering device and wellhead component replacement method - Google Patents
Oil pipe blocking valve taking and delivering device and wellhead component replacement method Download PDFInfo
- Publication number
- CN111980608B CN111980608B CN202010931686.1A CN202010931686A CN111980608B CN 111980608 B CN111980608 B CN 111980608B CN 202010931686 A CN202010931686 A CN 202010931686A CN 111980608 B CN111980608 B CN 111980608B
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- oil pipe
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- blocking valve
- oil
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000003129 oil well Substances 0.000 claims description 35
- 241000191291 Abies alba Species 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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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)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a taking and delivering device of an oil pipe blocking valve and a replacement method of a wellhead component, wherein the taking and delivering device of the oil pipe blocking valve comprises a connecting rod; the connecting rod can be connected with a central pipe of the oil pipe blocking valve and is used for driving the central pipe to rotate and pulling the oil pipe blocking valve through the central pipe; the outer wall of the connecting rod is provided with a clamping part, so that the connecting rod can be clamped on an external environment component through the clamping part. The oil pipe plugging valve has the advantages of reasonable design and simple operation, can prevent blowout during oil testing, and can prevent the oil pipe from plugging the valve and falling off, thereby reducing the safety risk of well control and ensuring the aging of oil testing.
Description
Technical Field
The invention relates to the technical field of exploitation of petroleum and natural gas, in particular to a taking and delivering device of an oil pipe blocking valve and a wellhead component replacement method.
Background
In the exploitation process of petroleum or natural gas, due to the particularity of the oil testing process, frequent wellhead replacement operation occurs during oil testing, when the wellhead is replaced, the wellhead is in an open state, once blowout occurs, no means can be used for controlling blowout, and the wellhead replacement operation becomes the biggest potential safety hazard during oil testing.
Chinese patent CN201460800U discloses that a recoverable oil pipe blocking valve can realize blowout prevention in the oil pipe, provides temporary well control measures, but in the oil pipe blocking valve taking and sending process, there is a well falling risk, leads to carrying out salvage operation, repeatedly reloading the wellhead, repeatedly tripping the tubular column, but increases well control safety risk, labor intensity and oil testing timeliness.
Disclosure of Invention
The invention aims to provide a taking and delivering device of an oil pipe blocking valve and a wellhead component replacing method, which can prevent the oil pipe blocking valve from falling off in the taking and delivering process of the oil pipe blocking valve, further reduce the safety risk of well control and ensure the timeliness of oil testing.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the oil pipe blocking valve taking and conveying device includes one connecting rod;
the connecting rod can be connected with a central tube of the oil tube blocking valve and is used for driving the central tube to rotate and pass through the center Guan Dila of the oil tube blocking valve;
the outer wall of the connecting rod is provided with a clamping part, so that the connecting rod can be clamped on an external environment component through the clamping part.
Preferably, the telescopic shaft also comprises a sleeve, a telescopic shaft and a positioning component;
The connecting rod is fixedly connected with the sleeve, the axes of the connecting rod and the sleeve are coincident, and one end of the sleeve, which is far away from the connecting rod, is provided with an opening;
The telescopic shaft comprises a sliding part and a connecting part which are fixed together, the sliding part is positioned in the sleeve, the connecting part extends out of the opening of the sleeve and can be connected with a central tube of the oil pipe blocking valve, and the sliding part can slide in the sleeve along the axial direction of the sleeve so as to change the distance between the connecting part and the opening;
The positioning member is capable of fixing the sliding portion within the sleeve when the sliding portion moves to a target position within the sleeve.
Preferably, the positioning component is a screw;
The side wall of the sleeve is provided with a positioning screw hole matched with the screw, the screw is in threaded connection with the positioning screw hole, is abutted against the surface of the sliding part through screwing in the positioning screw hole, and presses the sliding part against the inner wall of the sleeve.
Preferably, the number of the positioning screw holes is more than two, and the more than two positioning screw holes are sequentially distributed at intervals along the axial direction of the sleeve.
Preferably, the device also comprises a flat key;
The sliding part is characterized in that a first key groove matched with the flat key is formed in the outer wall of the sliding part, a second key groove matched with the flat key is formed in the inner wall of the sleeve, and the flat key is located in the first key groove and the second key groove so as to enable the sliding part and the sleeve to be positioned relatively along the circumferential direction of the sleeve.
Preferably, the device further comprises a connecting joint;
The connecting joint is detachably connected to the connecting part, and external threads are arranged on the outer wall of the connecting joint
The oil pipe blocking valve comprises a connecting cylinder which is detachably connected to the central pipe, an inner thread which is matched with an outer thread on the outer wall of the outer connecting joint is arranged on the inner wall of the connecting cylinder, and the connecting joint can be in threaded connection in the connecting cylinder so as to connect the connecting part with the central pipe.
Preferably, the device further comprises an extension rod;
The oil pipe blocking valve is characterized in that a clamping groove is formed in the extension rod, a clamping hook is arranged at one end, far away from the oil pipe blocking valve, of the connecting rod, and the clamping hook can be clamped in the clamping groove, so that the extension rod can be clamped and fixed at one end of the oil pipe blocking valve of the connecting rod.
A method for replacing a wellhead component, for replacing a blowout preventer provided at a wellhead of an oil well with a christmas tree, a delivery device for an oil pipe choke valve using any of the above technical features;
The method comprises the following steps:
S200, extending an oil pipe blocking valve into an oil pipe, and enabling the oil pipe blocking valve to block an inner cavity of the oil pipe by rotating a central pipe of the oil pipe blocking valve;
S300, connecting the oil pipe and the oil pipe hanger together through a connecting part, wherein the connecting part is provided with a connecting channel capable of communicating the inner cavity of the oil pipe with the inner hole of the oil pipe hanger;
S600, the connecting rod stretches into the inner hole of the oil pipe hanger, and passes through the access channel in the connecting part to enter the inner cavity of the oil pipe to be connected with the central pipe of the oil pipe blocking valve, and meanwhile, the clamping part on the connecting rod in the access device is clamped at one side of the oil pipe hanger far away from the oil pipe;
S700, extending the oil pipe from the inner hole of the blowout preventer into the oil well, and enabling the oil pipe hanger to pass through the inner hole of the blowout preventer to be seated on the wellhead of the oil well;
S800, detaching the blowout preventer from the wellhead of the oil well, and then installing the Christmas tree on the wellhead of the oil well;
s900, driving the central tube of the oil tube blocking valve to rotate through the taking and delivering device, enabling the oil tube blocking valve to unblock the inner cavity of the oil tube, and then lifting the oil tube blocking valve out of the inner hole of the christmas tree through the taking and delivering device.
Preferably, the taking and delivering device comprises a sleeve, a telescopic shaft and a positioning component;
The connecting rod is fixedly connected with the sleeve, the axes of the connecting rod and the sleeve are coincident, and one end of the sleeve, which is far away from the connecting rod, is provided with an opening;
The telescopic shaft comprises a sliding part and a connecting part which are fixed together, the sliding part is positioned in the sleeve, the connecting part is positioned outside the opening of the sleeve and is connected with a central tube of the oil pipe blocking valve, and the sliding part can slide in the sleeve along the axial direction of the sleeve so as to change the distance between the connecting part and the opening;
The positioning member is capable of fixing the sliding portion within the sleeve when the sliding portion moves to a target position within the sleeve;
step S600 is preceded by step S500: the position of the sliding part in the sleeve is adjusted, and then the sliding part is fixed in the sleeve by the positioning component.
Preferably, the taking and delivering device further comprises a connecting joint;
The connecting joint is detachably connected to the connecting part, and external threads are arranged on the outer wall of the connecting joint
The oil pipe blocking valve comprises a connecting cylinder detachably connected to the central pipe, an inner thread matched with an outer thread on the outer wall of the outer connecting joint is arranged on the inner wall of the connecting cylinder, and the connecting joint can be in threaded connection in the connecting cylinder so as to connect the connecting part with the central pipe;
step S200 is preceded by step S100 of connecting the connecting cylinder with the central tube;
Step S500 is preceded by step S400 of fixedly connecting the connection joint to the connection part;
the connecting rod in step S600 is screwed to the connecting cylinder connected to the center tube through the connecting joint connected to the connecting portion.
A method of exchanging wellhead components for a blowout preventer for a christmas tree disposed at a wellhead of an oil well, the wellhead of the oil well having a tubing hanger in an inner bore of the christmas tree, the oil well having a tubing connected to the tubing hanger by a connecting component, wherein the connecting component has a connection passageway capable of communicating an inner bore of the tubing with an inner bore of the tubing hanger, characterized in that:
a delivery device for the oil line choke valve using any of the above technical features;
The method comprises the following steps:
S100', connecting a connecting rod in the access device with a central tube of an oil tube blocking valve;
s200', driving the oil pipe blocking valve to extend into the inner hole of the Christmas tree through the connecting rod, sequentially penetrating through the inner hole of the oil pipe hanger, enabling the access channel to enter the inner cavity of the oil pipe, and enabling the clamping part on the connecting rod to be clamped on the oil pipe hanger;
S300', driving the central tube to rotate through the connecting tube so that the oil tube blocking valve blocks an inner cavity of the oil tube;
S400', detaching the Christmas tree from the wellhead of the oil well, and then installing the blowout preventer on the wellhead of the oil well;
s500', pulling the oil pipe blocking valve, the oil pipe, the connecting component and the oil pipe hanger out of the inner hole of the blowout preventer through the connecting pipe.
According to the oil pipe blocking valve taking and delivering device, the clamping part is arranged on the outer wall of the connecting rod, so that the connecting rod can be clamped on an external environment component through the clamping part, the oil pipe blocking valve can be prevented from falling off in the taking and delivering process, the well control safety risk is further reduced, and the oil testing timeliness is guaranteed.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a device for removing a blocking valve of an oil pipe according to the first embodiment;
FIG. 2 is a schematic diagram showing a connection state between the oil pipe blocking valve and the taking device of the oil pipe blocking valve in FIG. 1;
FIG. 3 is a flow chart of a method of replacing wellhead components in a second embodiment;
fig. 4 is a flowchart of a method for replacing a wellhead member according to the third embodiment.
In the figure: 1-connecting rods; 11-a clamping part; 12-clamping hooks; 2-a sleeve; 21-opening; 22-positioning screw holes; 23-a second keyway; 3-a telescopic shaft; 31-a sliding part; 311-first keyway; 32-a connection; 4-an oil pipe blocking valve; 41-a central tube; 42-connecting the cylinders; 5-flat key; 6-connection joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following describes in further detail the device for taking out and feeding an oil pipe blocking valve and the method for replacing a wellhead member according to the present invention with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 and 2, a device for taking and delivering an oil pipe blocking valve comprises a connecting rod 1. The connecting rod 1 can be connected with the central tube 41 of the oil tube blocking valve 4 to drive the central tube 41 to rotate and pull the oil tube blocking valve 4 through the central tube 41. The outer wall of the connecting rod 1 is provided with a clamping part 11, so that the connecting rod 1 can be clamped on an external environment component through the clamping part 11, and the environment component can be a tubing hanger which is set at the wellhead of the oil well. In practical manufacturing, the clamping part 11 can be an annular protrusion extending coaxially with the connecting rod. The oil pipe blocking valve 4 can be used for blocking or unblocking the oil pipe when the connecting rod 1 drives the central pipe 41 to rotate. By adopting the technical scheme, in the process of taking and delivering the oil pipe blocking valve 4, the connecting rod is clamped and fixed on an external environment component (such as an oil pipe hanger) through the clamping part 11, so that the phenomenon that the oil pipe blocking valve 4 falls off and falls into an oil well in the working process is avoided, the safety risk of well control is reduced, and the oil testing aging is ensured.
Further, as shown in fig. 1 and 2, the telescopic shaft further comprises a sleeve 2, a telescopic shaft 3 and a positioning member (not shown). The connecting rod 1 is fixedly connected with the sleeve 2, the axes of the connecting rod 1 and the sleeve 2 are coincident, and one end of the sleeve 2 far away from the connecting rod 1 is provided with an opening 21. The fixed connection between the connecting rod 1 and the sleeve 2 may be any connection manner, such as a key connection or a welding connection, and no matter which connection manner is adopted, it must be ensured that the connecting rod 1 can drive the sleeve 2 to rotate, that is, the connecting rod 1 can transmit torque to the sleeve 2. The telescopic shaft 3 includes a sliding portion 31 and a connecting portion 32 fixed together, the sliding portion 31 being located inside the sleeve 2, the connecting portion 32 extending outside the opening 21 of the sleeve 2 and being capable of being connected with the center tube 41 of the oil tube blocking valve 4, the sliding portion 31 being capable of sliding inside the sleeve 2 in the axial direction of the sleeve 2 to change the distance between the connecting portion 32 and the opening 21. When the sliding portion 31 moves to the target position within the sleeve 2, the positioning member can fix the sliding portion 31 within the sleeve 2. By adopting the technical scheme, the distance between the connecting part 32 and the opening 21 can be adjusted by adjusting the position of the sliding part 31 in the sleeve 2, and the whole length of the access device can be adjusted according to actual working requirements. When the positioning member fixes the sliding portion 31 in the sleeve 2, the connecting rod 1 can transmit torque to the connecting portion 32 through the sleeve 2 to rotate the central tube 41. In actual production, any means such as a snap fit or a screw connection may be employed between the connection portion 32 and the center tube 41 to achieve the object of the present invention, so long as torque can be transmitted between them.
Specifically, the positioning member is a screw. As shown in fig. 1, a positioning screw hole 22 is provided in the side wall of the sleeve 2, which is matched with a screw that is screwed into the positioning screw hole 22, abuts against the surface of the sliding portion 31 by screwing into the positioning screw hole 22, and presses the sliding portion 31 against the inner wall of the sleeve 2. Further, the number of the positioning screw holes 22 is more than two, and the more than two positioning screw holes 22 are sequentially distributed at intervals along the axial direction of the sleeve 2.
As an alternative embodiment, as shown in fig. 1, a flat key 5 is also included. A first key groove 311 matched with the flat key 5 is provided on the outer wall of the sliding part 31, a second key groove 23 matched with the flat key 5 is provided on the inner wall of the sleeve 2, and the flat key 5 is positioned in the first key groove 311 and the second key groove 23 so as to relatively position the sliding part 31 and the sleeve 2 along the circumferential direction of the sleeve 2. This ensures a reliable transmission of torque between the sleeve 2 and the telescopic shaft 3.
Further, as shown in fig. 1 and 2, the connector further comprises a connecting joint 6. The connection terminal 6 is detachably connected to the connection portion 32. Any connection manner that can be achieved, such as a key connection or welding, between the connection joint 6 and the connection portion 32 is required, and no matter which connection manner is adopted, it is necessary to ensure that the connection portion 32 can drive the connection joint 6 to rotate, that is, the connection portion 32 can transmit torque to the connection joint 6. The external thread is arranged on the outer wall of the connecting joint 6, the oil pipe blocking valve 4 comprises a connecting cylinder 42 which is detachably connected to the central pipe 41, wherein any connection mode which can be realized by key connection or welding and the like can be adopted between the connecting cylinder and the central pipe 41, and no matter which connection mode is adopted, the connecting cylinder 42 must be ensured to drive the central pipe 41 to rotate, namely the connecting cylinder 42 can transmit torque to the central pipe 41. The inner wall of the connecting cylinder 42 is provided with an internal thread matching the external thread on the outer wall of the external connection fitting 6, and the connection fitting 6 can be screwed into the connecting cylinder 42 to connect the connection portion 32 with the central tube 41. The sample receiving device can drive the connecting cylinder 42 to drive the central tube 41 to rotate through the connecting joint 6 so as to realize the plugging or unblocking of the oil pipe by the oil pipe plugging valve 4.
It should be noted that such a solution is convenient to connect the connecting portion 32 and the central tube 41 together, but the rotational driving of the central tube 41 is only performed in one direction, so that it is suitable for performing only the plugging operation or only the deblocking operation.
Preferably, the oil pipe blocking valve further comprises an extension rod (not shown), wherein a clamping groove is formed in the extension rod, a clamping hook is arranged at one end, far away from the oil pipe blocking valve 4, of the connecting rod 1, and the clamping hook can be clamped in the clamping groove, so that the extension rod can be clamped at one end, clamped at the oil pipe blocking valve 4, of the connecting rod 1, and the extension rod can drive the connecting rod 1 to rotate. In this way, the connecting rod 1 can be rotationally driven at a position relatively far from the connecting rod 1, and the adaptability to work is stronger.
Example two
A method of replacing a wellhead member for replacing a blowout preventer provided at a wellhead of an oil well with a christmas tree, using the delivery device (hereinafter referred to as a delivery device) of the tubing plug valve described in embodiment one;
As shown in fig. 3, the method comprises the steps of: s200, extending an oil pipe blocking valve into the oil pipe, and enabling the oil pipe blocking valve to block an inner cavity of the oil pipe by rotating a central pipe of the oil pipe blocking valve; s300, connecting the oil pipe and the oil pipe hanger together through a connecting part, wherein the connecting part is provided with a connecting channel which can communicate the inner cavity of the oil pipe with the inner hole of the oil pipe hanger; s600, extending the connecting rod into the inner hole of the oil pipe hanger, enabling the connecting rod to penetrate through the access channel in the connecting part and enter the inner cavity of the oil pipe to be connected with the central pipe of the oil pipe blocking valve, and enabling the clamping part on the connecting rod in the taking and conveying device to be clamped at one side of the oil pipe hanger far away from the oil pipe; s700, extending an oil pipe into the oil well from the inner hole of the blowout preventer, and enabling an oil pipe hanger to pass through the inner hole of the blowout preventer to be sealed on the wellhead of the oil well; s800, detaching the blowout preventer from the wellhead of the oil well, and then installing the Christmas tree on the wellhead of the oil well; s900, driving a central tube of the oil tube blocking valve to rotate through a taking and delivering device, enabling the oil tube blocking valve to unblock an inner cavity of the oil tube, and then lifting the oil tube blocking valve out of an inner hole of the christmas tree through the taking and delivering device.
The four-way valve is arranged at the wellhead of the oil well in actual work, the tubing hanger can be directly sealed on the four-way valve in the step S700, at the moment, the inner cavity of the tubing and the wellhead are sealed through the tubing plug valve, and sealing is realized through the sealing of the tubing hanger between the outer wall of the tubing and the wellhead, so that blowout can be prevented in the operation process. The sealing effect of the tubing hanger on the four-way valve is not the invention point of the invention, but is a prior art, and the invention only uses the prior art and does not intend to improve the prior art, so the specific manner of setting the tubing hanger is not described in detail herein.
The clamping part on the connecting rod in the taking and conveying device is clamped at one side of the tubing hanger, far away from the tubing, of the tubing hanger in the step S600, so that the phenomenon that the tubing plug valve falls off and falls into an oil well can be avoided in the operation process, the well control safety risk is reduced, and the oil testing timeliness is guaranteed. In step S300, the connection between the connection member and the oil pipe and the tubing hanger may be threaded, but the connection is not limited thereto, and any connection method capable of achieving the object of the present invention may be used.
Further, the fetching and delivering device comprises a sleeve, a telescopic shaft and a positioning component, wherein the connecting rod is fixedly connected with the sleeve, the axes of the sleeve and the telescopic shaft coincide, and one end, far away from the connecting rod, of the sleeve is provided with an opening. The telescopic shaft comprises a sliding part and a connecting part which are fixed together, the sliding part is positioned in the sleeve, the connecting part is positioned outside the opening of the sleeve and is connected with the central tube of the oil tube blocking valve, and the sliding part can slide in the sleeve along the axial direction of the sleeve so as to change the distance between the connecting part and the opening. The positioning member is capable of fixing the sliding portion in the sleeve when the sliding portion moves to the target position in the sleeve;
as shown in fig. 3, step S600 includes step S500: the position of the sliding part in the sleeve is adjusted, and then the sliding part is fixed in the sleeve by a positioning component. The connecting part of the telescopic rod can be stretched into the oil pipe to make a position mark, and then the position of the sliding part in the sleeve is adjusted according to the position mark so as to adapt to the requirement of the receiving work.
As an embodiment, the taking-out and delivering device further comprises a connecting joint;
the connecting joint is detachably connected to the connecting part, and external threads are arranged on the outer wall of the connecting joint
The oil pipe blocking valve comprises a connecting cylinder detachably connected to the central pipe, an inner thread matched with an outer thread on the outer wall of the outer connecting joint is arranged on the inner wall of the connecting cylinder, and the connecting joint can be in threaded connection in the connecting cylinder so as to connect the connecting part with the central pipe;
As shown in fig. 3, step S200 is preceded by step S100 of connecting the connecting tube with the central tube; step S500 is preceded by step S400 of fixedly connecting the connecting joint to the connecting part; in step S600, the connecting rod is screwed to the connecting tube connected to the center tube via the connecting joint connected to the connecting portion. By adopting the mode, the connection between the connecting part and the central pipe can be simpler and faster, and the technical scheme can only drive the central pipe to be screwed in one direction, and the oil pipe blocking valve can be unblocked by adopting the scheme in the embodiment of the invention only by way of example, and the blocking operation of the oil pipe blocking valve in the step S200 can be performed by other tools.
Example III
A method for replacing wellhead components for replacing a christmas tree arranged at the wellhead of an oil well with a blowout preventer, wherein in the inner bore of the christmas tree the wellhead of the oil well is provided with a tubing hanger, and in the oil well is provided with a tubing connected with the tubing hanger by a connecting component, wherein the connecting component is provided with a connecting channel capable of communicating the inner bore of the tubing with the inner bore of the tubing hanger,
A pick-up device (hereinafter referred to as a pick-up device) using the oil pipe blocking valve described in the first embodiment;
as shown in fig. 4, the method comprises the steps of: s100', connecting a connecting rod in the access device with a central tube of the oil tube blocking valve; s200', driving an oil pipe blocking valve to extend into an inner hole of the Christmas tree through a connecting rod, sequentially penetrating through the inner hole of the oil pipe hanger, connecting a channel, entering into the inner cavity of the oil pipe, and enabling a clamping part on the connecting rod to be clamped on the oil pipe hanger; s300', driving the central tube to rotate through the connecting tube so that the oil tube blocking valve blocks the inner cavity of the oil tube; s400', detaching the Christmas tree from the wellhead of the oil well, and then installing a blowout preventer on the wellhead of the oil well; s500', pulling the oil pipe blocking valve, the oil pipe, the connecting component and the oil pipe hanger out of the inner hole of the blowout preventer through the connecting pipe.
Through adopting the technical scheme that makes the joint portion card on the connecting rod on the tubing hanger in step S200', can avoid oil pipe choke valve to appear droing and falling the phenomenon emergence in the oil well in the operation process, reduced well control security risk, guaranteed the time spent in testing oil. It should be noted that the connection between the connecting rod and the central tube in the step S100' may be a clamping connection or other connection methods, so long as the connecting rod can drive the central tube to rotate, and the plugging operation of the oil pipe plug valve is achieved.
The embodiment of the invention has the advantages of reasonable design and simple operation, can prevent blowout during oil testing, can prevent the oil pipe from blocking the valve and falling off, further reduces the safety risk of well control, and ensures the aging of oil testing.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. The utility model provides a get send device of oil pipe choke valve which characterized in that:
Comprises a connecting rod (1);
the connecting rod (1) can be connected with a central tube (41) of the oil tube blocking valve (4) and is used for driving the central tube (41) to rotate and pulling the oil tube blocking valve (4) through the central tube (41);
A clamping part (11) is arranged on the outer wall of the connecting rod (1) so that the connecting rod (1) can be clamped on an external environment component through the clamping part (11);
the telescopic shaft also comprises a sleeve (2), a telescopic shaft (3) and a positioning component;
The connecting rod (1) is fixedly connected with the sleeve (2), the axes of the connecting rod and the sleeve are coincident, and an opening (21) is formed in one end, far away from the connecting rod (1), of the sleeve (2);
The telescopic shaft (3) comprises a sliding part (31) and a connecting part (32) which are fixed together, wherein the sliding part (31) is positioned inside the sleeve (2), the connecting part (32) extends out of the opening (21) of the sleeve (2) and can be connected with a central tube (41) of the oil pipe blocking valve (4), and the sliding part (31) can slide in the sleeve (2) along the axial direction of the sleeve (2) so as to change the distance between the connecting part (32) and the opening (21);
the positioning member is capable of fixing the sliding portion (31) within the sleeve (2) when the sliding portion (31) moves to a target position within the sleeve (2);
The positioning component is a screw;
A positioning screw hole (22) matched with the screw is formed in the side wall of the sleeve (2), the screw is connected in the positioning screw hole (22) in a threaded mode, the screw is abutted to the surface of the sliding part (31) through screwing in the positioning screw hole (22), and the sliding part (31) is pressed against the inner wall of the sleeve (2);
Also comprises a flat key (5);
Be provided with on the outer wall of sliding part (31) with flat key (5) assorted first keyway (311) be provided with on the inner wall of sleeve (2) with flat key (5) assorted second keyway (23), flat key (5) are located first keyway (311) with in second keyway (23), in order to with sliding part (31) with sleeve (2) are followed circumference relative positioning of sleeve (2).
2. The oil pipe blocking valve taking and delivering device according to claim 1, wherein:
the number of the positioning screw holes (22) is more than two, and the more than two positioning screw holes (22) are sequentially distributed at intervals along the axial direction of the sleeve (2).
3. The oil pipe blocking valve taking and delivering device according to claim 1, wherein:
Also comprises a connecting joint (6);
The connecting joint (6) is detachably connected to the connecting part (32), and external threads are arranged on the outer wall of the connecting joint (6);
The oil pipe blocking valve (4) comprises a connecting cylinder (42) which is detachably connected to the central pipe (41), an inner thread which is matched with an outer thread on the outer wall of the connecting joint (6) is arranged on the inner wall of the connecting cylinder (42), and the connecting joint (6) can be in threaded connection in the connecting cylinder (42) so as to connect the connecting part (32) with the central pipe (41).
4. A device for removing and delivering an oil pipe blocking valve according to any one of claims 1 to 3, wherein:
The device also comprises an extension rod;
The oil pipe blocking valve is characterized in that a clamping groove is formed in the extension rod, a clamping hook (12) is arranged at one end, away from the oil pipe blocking valve (4), of the connecting rod (1), and the clamping hook (12) can be clamped in the clamping groove, so that the extension rod can be clamped and fixed at one end of the oil pipe blocking valve (4) of the connecting rod (1).
5. A method of replacing a wellhead component for replacing a blowout preventer disposed at a wellhead of an oil well with a christmas tree, characterized by:
a pick-up device using the oil pipe blocking valve according to any one of claims 1 to 4;
The method comprises the following steps:
S200, extending an oil pipe blocking valve into an oil pipe, and enabling the oil pipe blocking valve to block an inner cavity of the oil pipe by rotating a central pipe of the oil pipe blocking valve;
S300, connecting the oil pipe and the oil pipe hanger together through a connecting part, wherein the connecting part is provided with a connecting channel capable of communicating the inner cavity of the oil pipe with the inner hole of the oil pipe hanger;
S600, the connecting rod stretches into the inner hole of the oil pipe hanger, and passes through the access channel in the connecting part to enter the inner cavity of the oil pipe to be connected with the central pipe of the oil pipe blocking valve, and meanwhile, the clamping part on the connecting rod in the access device is clamped at one side of the oil pipe hanger far away from the oil pipe;
S700, extending the oil pipe from the inner hole of the blowout preventer into the oil well, and enabling the oil pipe hanger to pass through the inner hole of the blowout preventer to be seated on the wellhead of the oil well;
S800, detaching the blowout preventer from the wellhead of the oil well, and then installing the Christmas tree on the wellhead of the oil well;
s900, driving the central tube of the oil tube blocking valve to rotate through the taking and delivering device, enabling the oil tube blocking valve to unblock the inner cavity of the oil tube, and then lifting the oil tube blocking valve out of the inner hole of the christmas tree through the taking and delivering device.
6. The method of replacing a wellhead member according to claim 5, wherein:
the taking and conveying device comprises a sleeve, a telescopic shaft and a positioning component;
The connecting rod is fixedly connected with the sleeve, the axes of the connecting rod and the sleeve are coincident, and one end of the sleeve, which is far away from the connecting rod, is provided with an opening;
The telescopic shaft comprises a sliding part and a connecting part which are fixed together, the sliding part is positioned in the sleeve, the connecting part is positioned outside the opening of the sleeve and is connected with a central tube of the oil pipe blocking valve, and the sliding part can slide in the sleeve along the axial direction of the sleeve so as to change the distance between the connecting part and the opening;
The positioning member is capable of fixing the sliding portion within the sleeve when the sliding portion moves to a target position within the sleeve;
step S600 is preceded by step S500: adjusting the position of the sliding part in the sleeve, and then fixing the sliding part in the sleeve by using the positioning component;
The taking and conveying device further comprises a connecting joint;
The connecting joint is detachably connected to the connecting part, and external threads are arranged on the outer wall of the connecting joint
The oil pipe blocking valve comprises a connecting cylinder detachably connected to the central pipe, an inner thread matched with an outer thread on the outer wall of the connecting joint is arranged on the inner wall of the connecting cylinder, and the connecting joint can be in threaded connection in the connecting cylinder so as to connect the connecting part with the central pipe;
step S200 is preceded by step S100 of connecting the connecting cylinder with the central tube;
Step S500 is preceded by step S400 of fixedly connecting the connection joint to the connection part;
the connecting rod in step S600 is screwed to the connecting cylinder connected to the center tube through the connecting joint connected to the connecting portion.
7. A method of exchanging wellhead components for a blowout preventer for a christmas tree disposed at a wellhead of an oil well, the wellhead of the oil well having a tubing hanger in an inner bore of the christmas tree, the oil well having a tubing connected to the tubing hanger by a connecting component, wherein the connecting component has a connection passageway capable of communicating an inner bore of the tubing with an inner bore of the tubing hanger, characterized in that:
a pick-up device using the oil pipe blocking valve according to any one of claims 1 to 4;
The method comprises the following steps:
s100', connecting a connecting rod in the access channel with a central tube of an oil tube blocking valve;
s200', driving the oil pipe blocking valve to extend into the inner hole of the Christmas tree through the connecting rod, sequentially penetrating through the inner hole of the oil pipe hanger, enabling the access channel to enter the inner cavity of the oil pipe, and enabling the clamping part on the connecting rod to be clamped on the oil pipe hanger;
S300', driving the central tube to rotate through the connecting tube so that the oil tube blocking valve blocks an inner cavity of the oil tube;
S400', detaching the Christmas tree from the wellhead of the oil well, and then installing the blowout preventer on the wellhead of the oil well;
s500', pulling the oil pipe blocking valve, the oil pipe, the connecting component and the oil pipe hanger out of the inner hole of the blowout preventer through the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010931686.1A CN111980608B (en) | 2020-09-08 | 2020-09-08 | Oil pipe blocking valve taking and delivering device and wellhead component replacement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010931686.1A CN111980608B (en) | 2020-09-08 | 2020-09-08 | Oil pipe blocking valve taking and delivering device and wellhead component replacement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111980608A CN111980608A (en) | 2020-11-24 |
| CN111980608B true CN111980608B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010931686.1A Active CN111980608B (en) | 2020-09-08 | 2020-09-08 | Oil pipe blocking valve taking and delivering device and wellhead component replacement method |
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| CN (1) | CN111980608B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460800U (en) * | 2009-07-01 | 2010-05-12 | 中国石油天然气股份有限公司 | Recoverable oil pipe plugging valve |
| CN205477528U (en) * | 2016-01-13 | 2016-08-17 | 宝鸡瑞通石油装备有限公司 | Novel well head coupling blocks up valve |
| CN108119077A (en) * | 2016-11-29 | 2018-06-05 | 中国石油天然气股份有限公司 | Well washing valve for under-pressure operation |
| CN110735618A (en) * | 2018-07-19 | 2020-01-31 | 中国石油天然气股份有限公司 | Oil extraction and water injection string |
| CN212406644U (en) * | 2020-09-08 | 2021-01-26 | 中石化石油工程技术服务有限公司 | Fetching and delivering device of oil pipe blocking valve |
-
2020
- 2020-09-08 CN CN202010931686.1A patent/CN111980608B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460800U (en) * | 2009-07-01 | 2010-05-12 | 中国石油天然气股份有限公司 | Recoverable oil pipe plugging valve |
| CN205477528U (en) * | 2016-01-13 | 2016-08-17 | 宝鸡瑞通石油装备有限公司 | Novel well head coupling blocks up valve |
| CN108119077A (en) * | 2016-11-29 | 2018-06-05 | 中国石油天然气股份有限公司 | Well washing valve for under-pressure operation |
| CN110735618A (en) * | 2018-07-19 | 2020-01-31 | 中国石油天然气股份有限公司 | Oil extraction and water injection string |
| CN212406644U (en) * | 2020-09-08 | 2021-01-26 | 中石化石油工程技术服务有限公司 | Fetching and delivering device of oil pipe blocking valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111980608A (en) | 2020-11-24 |
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