CN216240542U - Pressure relief tool for wellhead of screw pump well - Google Patents
Pressure relief tool for wellhead of screw pump well Download PDFInfo
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- CN216240542U CN216240542U CN202123079891.9U CN202123079891U CN216240542U CN 216240542 U CN216240542 U CN 216240542U CN 202123079891 U CN202123079891 U CN 202123079891U CN 216240542 U CN216240542 U CN 216240542U
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Abstract
The utility model discloses a screw pump wellhead pressure relief tool, which comprises: the pressure relief main body is T-shaped and comprises a transverse main body and a longitudinal main body; the bypass is welded on the longitudinal main body, one end of the connecting rod extends out of the transverse main body, and the end head of the connecting rod is connected with an operating hand wheel; the other end of the transverse main body is welded with an inner polygonal sleeve, the spring is arranged in the transverse main body and sleeved into one side of the connecting rod, and the sealing filler passes through the connecting rod and is arranged in a filler box in the transverse main body; the stuffing box is positioned on one side of the transverse main body close to the operating hand wheel; the gland penetrates through the connecting rod to be in threaded connection with the packing box, so that the sealing packing is compressed, and the inner cavity of the main body is sealed. The pressure relief tool for the wellhead of the screw pump well provided by the utility model effectively solves the problem that pressure cannot be relieved during maintenance of equipment at the wellhead of the screw pump well, and can effectively control the pressure of an oil pipe, and the effect is obvious.
Description
Technical Field
The utility model relates to the technical field of oil extraction equipment in oil fields, in particular to a wellhead pressure relief tool of a screw pump well.
Background
At present, in screw pump well equipment maintenance construction, when operations such as maintenance of a blowout preventer, replacement of a flange jackscrew and the like are carried out, a socket wrench is required to detach a wellhead oil pipe emptying plug, and due to no valve control, once the bottom hole pressure is too high, a large amount of oil can be leaked out and cannot be controlled, so that maintenance delay is caused, the downtime is increased, and the oil well yield is influenced. Not only has potential safety hazard, but also can cause serious pollution to the environment.
Disclosure of Invention
Technical problem to be solved
The utility model provides a wellhead pressure relief tool for a screw pump well, which aims to solve the problems of high difficulty and high risk in pressure relief of an oil pipe at the wellhead of the screw pump well in the prior art.
(II) technical scheme
In order to solve the problems, the utility model provides a screw pump wellhead pressure relief tool, which comprises: the pressure relief device comprises a pressure relief main body, a bypass, an inner pentagonal sleeve, a connecting rod, a spring, sealing packing, a gland and an operating hand wheel;
the pressure relief main body is T-shaped and comprises a transverse main body and a longitudinal main body; the bypass is welded on the longitudinal main body and used for installing a valve and a pipeline and controlling the pressure of the oil pipe;
a connecting rod is transversely arranged in the transverse main body, one end of the connecting rod extends out of the transverse main body, and the end head of the connecting rod is connected with an operating hand wheel; the operating hand wheel is rotated to drive the connecting rod to rotate so as to detach the outer pentagonal plug on the oil pipe emptying pipe;
an inner pentagonal sleeve is welded at the other end of the connecting rod and sleeved into an outer pentagonal plug in the middle of a well head oil pipe emptying pipe through the inner pentagonal sleeve;
the spring is arranged in the transverse main body and sleeved into one side of the connecting rod, and the sealing filler passes through the connecting rod and is arranged in a filler box in the transverse main body;
the stuffing box is positioned on one side of the transverse main body close to the operating hand wheel;
the gland penetrates through the connecting rod to be in threaded connection with the packing box, so that the sealing packing is compressed, and the inner cavity of the main body is sealed.
Preferably, the operating hand wheel is sleeved in the connecting rod and fixedly connected with the connecting rod through a locking nut.
Preferably, the longitudinal body is integrally provided with the transverse body, and the longitudinal body is connected to the middle of the transverse body.
Preferably, the tail end of the longitudinal main body is provided with an internal thread which is connected with an external thread of a vent pipe of the wellhead oil pipe.
Preferably, the spring is in close proximity to the sealing packing.
Preferably, the structure of the inner polygonal sleeve is matched with the structure of the outer polygonal plug in the middle of the oil pipe emptying pipe.
(III) advantageous effects
The pressure relief tool for the wellhead of the screw pump well effectively solves the problem that pressure cannot be relieved when equipment at the wellhead of the screw pump well is maintained. In the equipment maintenance process, the tool is installed on the oil pipe emptying pipe, the pressure of the oil pipe can be effectively controlled, the benefit is obvious, and the tool can be popularized in the oil field range.
Drawings
FIG. 1 is a schematic structural view of a wellhead pressure relief tool of a screw pump well according to an embodiment of the utility model.
Wherein: 1-a body; 2-bypass; 3-inner pentagonal sleeve; 4-a connecting rod; 5-a spring; 6-sealing packing; 7-pressing the cover; 8-operating the hand wheel.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, the present invention provides a tool for relieving pressure at a wellhead of a screw pump well, comprising:
the pressure relief device comprises a pressure relief main body, a bypass, an inner pentagonal sleeve, a connecting rod, a spring, sealing packing, a gland and an operating hand wheel;
the pressure relief main body is T-shaped and comprises a transverse main body and a longitudinal main body; the longitudinal main body and the transverse main body are integrally arranged, and the longitudinal main body is connected to the middle part of the transverse main body; the tail end of the longitudinal main body is provided with an internal thread which is connected with an external thread of a well head oil pipe emptying pipe.
The bypass is welded on the longitudinal main body and used for installing a valve and a pipeline and controlling the pressure of the oil pipe;
a connecting rod is transversely arranged in the transverse main body, one end of the connecting rod extends out of the transverse main body, and the end head of the connecting rod is connected with an operating hand wheel; the operating hand wheel is rotated to drive the connecting rod to rotate so as to detach the outer pentagonal plug on the oil pipe emptying pipe;
an inner pentagonal sleeve is welded at the other end of the connecting rod and sleeved into an outer pentagonal plug in the middle of a well head oil pipe emptying pipe through the inner pentagonal sleeve;
the spring is arranged in the transverse main body and sleeved into one side of the connecting rod, and can buffer the pressure after the plug is removed. The sealing filler is arranged in a filler box in the transverse main body through the connecting rod; the spring is next to the sealing packing.
The stuffing box is positioned on one side of the transverse main body close to the operating hand wheel;
the gland penetrates through the connecting rod to be in threaded connection with the packing box, so that the sealing packing is compressed, and the inner cavity of the main body is sealed.
The operating hand wheel is sleeved into the connecting rod and fixedly connected with the connecting rod through a locking nut.
The structure of the inner polygonal sleeve in the embodiment is matched with the structure of the outer polygonal plug in the middle of the oil pipe emptying pipe.
In practical application, the inner polygonal sleeve can be an inner pentagonal sleeve or an inner hexagonal sleeve. The outer polygonal plug in the middle of the oil pipe emptying pipe matched with the outer polygonal plug can adopt an outer pentagonal plug or an outer hexagonal plug.
The sealing filler passes through the connecting rod and is loaded into the main body filler box, the gland passes through the connecting rod and is in threaded connection with the main body filler box, the sealing filler is compressed, the inner cavity of the main body can be sealed, liquid is prevented from overflowing, the operating hand wheel is sleeved on the connecting rod and is fixed through the locking nut, and the rotating hand wheel drives the connecting rod and the inner pentagonal sleeve to unload the outer pentagonal plug.
One end of the connecting rod is connected with the inner pentagonal sleeve, the other end of the connecting rod is connected with the operating hand wheel, and the connecting rod is driven to dismount the outer pentagonal plug on the oil pipe emptying pipe by rotating the operating hand wheel. The sealing packing of the inner cavity of the main body is compressed by the pressing cover to seal the inner cavity of the main body to prevent liquid from overflowing, and after the outer pentagonal plug is disassembled by the operating hand wheel, well liquid flows out through the bypass and is controlled to be orderly discharged by the valve.
Before maintenance of wellhead equipment, the tool is installed on a vent pipe of a wellhead oil pipe, a control valve is installed, a connecting rod is pushed to enable an inner pentagonal sleeve to be sleeved into a pentagonal plug, an operating rod is rotated to detach an outer pentagonal plug, and liquid enters an inner cavity of a main body to be effectively controlled to overflow. Through field experiment, screw rod well head pressure release instrument has reached anticipated effect, the unable problem of pressure release when effectively having solved screw pump well head equipment maintenance. In the equipment maintenance process, the tool is installed on the oil pipe emptying pipe, the pressure of the oil pipe can be effectively controlled, the effect is obvious, and the tool can be popularized in the oil field range.
The above embodiments are only for illustrating the utility model and are not to be construed as limiting the utility model, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, therefore, all equivalent technical solutions also belong to the scope of the utility model, and the scope of the utility model is defined by the claims.
Claims (6)
1. The utility model provides a screw pump well head pressure relief tool which characterized in that includes: the pressure relief device comprises a pressure relief main body, a bypass, an inner pentagonal sleeve, a connecting rod, a spring, sealing packing, a gland and an operating hand wheel;
the pressure relief main body is T-shaped and comprises a transverse main body and a longitudinal main body; the bypass is welded on the longitudinal main body and used for installing a valve and a pipeline and controlling the pressure of the oil pipe;
a connecting rod is transversely arranged in the transverse main body, one end of the connecting rod extends out of the transverse main body, and the end head of the connecting rod is connected with an operating hand wheel; the operation hand wheel is rotated to drive the connecting rod to rotate so as to detach the outer polygonal plug on the oil pipe emptying pipe;
an inner polygonal sleeve is welded at the other end of the connecting rod and sleeved into an outer polygonal plug in the middle of a well head oil pipe emptying pipe through the inner polygonal sleeve;
the spring is arranged in the transverse main body and sleeved into one side of the connecting rod, and the sealing filler passes through the connecting rod and is arranged in a filler box in the transverse main body;
the stuffing box is positioned on one side of the transverse main body close to the operating hand wheel;
the gland penetrates through the connecting rod to be in threaded connection with the packing box, so that the sealing packing is compressed, and the inner cavity of the main body is sealed.
2. A screw pump well wellhead pressure relief tool as claimed in claim 1, wherein the operating hand wheel is sleeved into a connecting rod and fixedly connected by a locking nut.
3. The tool of claim 1, wherein the longitudinal body is integral with the transverse body, and the longitudinal body is attached to a middle portion of the transverse body.
4. The tool of claim 1, wherein the longitudinal body terminates in an internal thread that is configured to engage an external thread on a wellhead tubing vent.
5. A screw pump well wellhead pressure relief tool as claimed in claim 1, wherein said spring is in close proximity to a seal packing.
6. A screw pump well wellhead pressure relief tool as claimed in claim 1 wherein the inner polygonal sleeve is of a configuration to match the configuration of the outer polygonal plug in the middle of the tubing vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123079891.9U CN216240542U (en) | 2021-12-09 | 2021-12-09 | Pressure relief tool for wellhead of screw pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123079891.9U CN216240542U (en) | 2021-12-09 | 2021-12-09 | Pressure relief tool for wellhead of screw pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216240542U true CN216240542U (en) | 2022-04-08 |
Family
ID=80962370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123079891.9U Active CN216240542U (en) | 2021-12-09 | 2021-12-09 | Pressure relief tool for wellhead of screw pump well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216240542U (en) |
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2021
- 2021-12-09 CN CN202123079891.9U patent/CN216240542U/en active Active
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