CN204064557U - A kind of wellhead traversing device pick-up unit - Google Patents
A kind of wellhead traversing device pick-up unit Download PDFInfo
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- CN204064557U CN204064557U CN201420413587.4U CN201420413587U CN204064557U CN 204064557 U CN204064557 U CN 204064557U CN 201420413587 U CN201420413587 U CN 201420413587U CN 204064557 U CN204064557 U CN 204064557U
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- flange body
- pressure
- traversing device
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- wellhead traversing
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Abstract
A kind of wellhead traversing device pick-up unit.Belong to oil recovery technique field.It solve the problem lacking comparatively ideal wellhead traversing device pick-up unit at present.The lower end suppressing joint (1) of this pick-up unit is provided with admission piece, and the upper end suppressing joint (1) is connected with pressure-bearing pipe (2), the body of pressure-bearing pipe (2) is connected with tensimeter (3), vent valve (4) and blowdown valve (5); The upper end of pressure-bearing pipe (2) is connected with lower flange body (6), and the upper end of lower flange body (6) is connected with upper flange body (8) by fastening bolt (7), and the seal groove internal fixtion between lower flange body (6) and upper flange body (8) has O-ring seal (9); The endoporus of upper flange body (8) is " convex " shape shoulder hole.The utility model has that structure is simple, handling ease, convenient and practical advantage.
Description
Technical field
The utility model belongs to oil recovery technique field, is specifically related to a kind of device for detecting wellhead traversing device.
Background technology
Submersible electric pump oil extraction system has that discharge capacity is large, lifting pressure head high, is now widely used in oil extraction.Wellhead traversing device is as the vitals of in Electric Submersible Pump System, it for running through tubing hanger and upper flange on oil well with oil submersible pump mouth, and connecting downhole submersible electric machine with oil and aboveground power supply, be responsible for submersible electric machine with oil transmission of electric energy, thus wellhead traversing device needs good sealing and insulativity.In view of the vital role that wellhead traversing device plays in submersible electric pump oil extraction system, and the requirement to its high-pressure tightness and good insulation properties, wellhead traversing device is detected and just seems particularly important.The domestic research carried out in the context of detection of wellhead traversing device is less, does not have comparatively ideal pick-up unit.
Summary of the invention
The purpose of this utility model is to solve the problem lacking comparatively ideal wellhead traversing device pick-up unit at present, and provides a kind of wellhead traversing device pick-up unit.
This wellhead traversing device pick-up unit comprises suppresses joint, and the lower end suppressing joint is provided with admission piece, and the upper end suppressing joint is connected with pressure-bearing pipe, the body of pressure-bearing pipe is connected with tensimeter, vent valve and blowdown valve; The upper end of pressure-bearing pipe is connected with lower flange body, and the upper end of lower flange body is connected with upper flange body by fastening bolt, and the seal groove internal fixtion between lower flange body and upper flange body has O-ring seal; The endoporus of upper flange body is " convex " shape shoulder hole.
The utility model has following beneficial effect:
This wellhead traversing device pick-up unit can simulate the hyperbaric environment at well head place, detects the sealing of wellhead traversing device under hyperbaric environment and insulativity.On the one hand, the sealing between wellhead traversing device and well head can be detected, ensure that down-hole high pressure medium is not leaked to outside well and causes the accident; On the other hand, workman can be facilitated to detect insulativity between wellhead traversing device three-phase and over the ground.The utility model wellhead traversing device pick-up unit is detect wellhead traversing device to provide a kind of new device, has that structure is simple, handling ease, convenient and practical advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-suppress joint; 2-pressure-bearing pipe; 3-tensimeter; 4-vent valve; 5-blowdown valve; 6-lower flange body; 7-fastening bolt; 8-upper flange body; 9-O-ring seal; 10-wellhead traversing device; 11-test pump.
Embodiment
Below in conjunction with Fig. 1, the utility model is described further:
This wellhead traversing device pick-up unit comprises suppresses joint 1, the lower end suppressing joint 1 is provided with admission piece, the upper end suppressing joint 1 is connected with pressure-bearing pipe 2, both connect by thread seal, the body of pressure-bearing pipe 2 is connected with tensimeter 3, vent valve 4 and blowdown valve 5, tensimeter 3, vent valve 4 and blowdown valve 5 all with the intracavity inter-connection of pressure-bearing pipe 2; The upper end of pressure-bearing pipe 2 is connected with lower flange body 6, and both connect by thread seal, and the upper end of lower flange body 6 is connected with upper flange body 8 by fastening bolt 7, and the seal groove internal fixtion between lower flange body 6 and upper flange body 8 has O-ring seal 9; The endoporus of upper flange body 8 is " convex " shape shoulder hole, and namely the upper diameter of this shoulder hole is less than the diameter of its underpart.
This wellhead traversing device pick-up unit is when detecting, first the admission piece suppressing joint 1 is connected with test pump 11 by high-pressure hose, then wellhead traversing device 10 to be checked is placed in upper flange body 8, namely wellhead traversing device 10 is allowed also to stretch out from its upper end through upper flange body 8 with the upper end of cable plug, after again the cable of wellhead traversing device 10 to be checked being carried out tail seal, lower flange body 6 is passed in its lower end and is positioned in pressure-bearing body 5; Then the pressure release value on blowdown valve 5 is set, in pressure-bearing body 5, test(ing) medium with pressure is injected by test pump 11, blowdown valve 5 can control the upper pressure limit in pressure-bearing body 5 automatically, and vent valve 4 can control the gas volume in pressure-bearing body 5, and tensimeter 3 indicates detected pressures.After detected pressures to be achieved, test pump 11 quits work, and observes the leak case at each position of wellhead traversing device 10, detects its sealing; By high-voltage insulating resistance tester and the alternating-current voltage resistance test device insulating property from cable plug shaft mouth test penetration device 10.Wellhead traversing device 10 carries " O " shape O-ring seal, therefore the contact site of wellhead traversing device 10 and the shoulder hole of upper flange body 8 can close contact under the pressure effect in pressure-bearing body 5, thus effectively ensure that the overall tightness of the pick-up unit in testing process.
This wellhead traversing device pick-up unit can simulate the hyperbaric environment at well head place, detects the sealing of wellhead traversing device under hyperbaric environment and insulativity.On the one hand, the sealing between wellhead traversing device and well head can be detected, ensure that down-hole high pressure medium is not leaked to outside well and causes the accident; On the other hand, workman can be facilitated to detect insulativity between wellhead traversing device three-phase and over the ground.The utility model wellhead traversing device pick-up unit is detect wellhead traversing device to provide a kind of new device, has that structure is simple, handling ease, convenient and practical advantage.
Claims (1)
1. a wellhead traversing device pick-up unit, comprise and suppress joint (1), the lower end suppressing joint (1) is provided with admission piece, it is characterized in that: the upper end suppressing joint (1) is connected with pressure-bearing pipe (2), the body of pressure-bearing pipe (2) is connected with tensimeter (3), vent valve (4) and blowdown valve (5); The upper end of pressure-bearing pipe (2) is connected with lower flange body (6), and the upper end of lower flange body (6) is connected with upper flange body (8) by fastening bolt (7), and the seal groove internal fixtion between lower flange body (6) and upper flange body (8) has O-ring seal (9); The endoporus of upper flange body (8) is " convex " shape shoulder hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413587.4U CN204064557U (en) | 2014-07-25 | 2014-07-25 | A kind of wellhead traversing device pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413587.4U CN204064557U (en) | 2014-07-25 | 2014-07-25 | A kind of wellhead traversing device pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064557U true CN204064557U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420413587.4U Active CN204064557U (en) | 2014-07-25 | 2014-07-25 | A kind of wellhead traversing device pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490087A (en) * | 2018-12-26 | 2019-03-19 | 重庆昌瑞电器制造有限公司 | Cable penetration device pressure testing system |
-
2014
- 2014-07-25 CN CN201420413587.4U patent/CN204064557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490087A (en) * | 2018-12-26 | 2019-03-19 | 重庆昌瑞电器制造有限公司 | Cable penetration device pressure testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |