CN203175484U - Safety release valve for oil-gas well cable packer - Google Patents
Safety release valve for oil-gas well cable packer Download PDFInfo
- Publication number
- CN203175484U CN203175484U CN 201320170760 CN201320170760U CN203175484U CN 203175484 U CN203175484 U CN 203175484U CN 201320170760 CN201320170760 CN 201320170760 CN 201320170760 U CN201320170760 U CN 201320170760U CN 203175484 U CN203175484 U CN 203175484U
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- valve body
- piston
- gas well
- spring
- plug
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Abstract
A safety release valve for an oil-gas well cable packer comprises a tubular valve body, a piston, a spring and a screwed plug. The upper wall of the valve body is provided with a pressure release hole, one end of the valve body is provided with a connecting port with a flared structure, the inner wall of the connecting port is provided with inner threads, the inner wall of the other end of the valve body is provided with inner threads, the screwed plug is in thread connection with the end, the spring is installed on the upper part of the screwed plug, and the piston is installed on the upper part of the spring; a sealing ring is arranged on the piston, and a seal gasket is arranged in the sealing ring; and an adjusting socket is arranged on the lower end part of the screwed plug. Compared with the prior art, the safety release valve has the advantages of reasonability in design, simplicity in structure, reliability in action, capability of automatically releasing the pressure, and strong practicability.
Description
Technical field
The utility model relates to oil well down-hole boring device technical field, is specifically related to a kind of oil gas well cable-passing packer safety discharging air valve.
Background technology
Down-hole high pressure gas can't be derived when the structure of present oil well boring device, the shortcoming of existence are the vent valve inefficacy, thereby make the operate as normal of oil well produce baneful influence.Chinese patent discloses a kind of standby vent valve of oil gas well cable-passing packer, its application number is 201220421711.2, it is characterized in that: it comprises outer wall, described outer wall has endoporus and is provided with tubing thread in the inboard, front and back end of endoporus, inner hole wall in the tubing thread back of outer wall front end is provided with a block, one end of spring is axially fixed on the described block, piston bush and piston rod are installed in the endoporus successively and described piston bush is positioned at the other end of described spring, the afterbody of piston bush with link to each other by screw thread with the end of piston rod, can be slidingly matched between described piston bush and the outer wall endoporus and between piston rod and the outer wall endoporus, between described piston bush and outer wall endoporus, be provided with sealing ring between piston rod and the outer wall endoporus and between piston bush and the piston rod, have to annotate at described outer wall and press hole and via.Above-mentioned patent has complex structure, needs artificial well head to suppress and does not have a defective such as automatic discharging pressure.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of oil gas well cable-passing packer safety discharging air valve is provided.
Its technical scheme is: a kind of oil gas well cable-passing packer safety discharging air valve comprises valve body, piston, spring and the plug of pipe shape.The tube wall on described valve body top is provided with pressure releasing hole, and an end of valve body is provided with the connector of bell mouth shape structure, and this connector inwall is provided with internal thread, the other end inwall of valve body is provided with internal thread, this end internal thread is installed plug, plug top mounting spring, and piston is installed in spring top; Described piston is provided with joint ring, is provided with sealing ring in the joint ring; The bottom of described plug is provided with to regulate uses screw socket.
Wherein, described joint ring and in the sealing ring established all be made as 1-4 covers.Described adjusting screw socket is crosswise or a word shape otch.Described pressure releasing hole is made as parallel symmetrically arranged 2-4.
The utility model has the following advantages compared with prior art: reasonable in design, simple in structure, do reliable in action and can automatic discharging pressure, practical.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
With reference to Fig. 1, a kind of oil gas well cable-passing packer safety discharging air valve comprises valve body 1, piston 2, spring 3 and the plug 4 of pipe shape.The tube wall on described valve body 1 top is provided with pressure releasing hole 6, one end of valve body 1 is provided with the connector 5 of bell mouth shape structure, these connector 5 inwalls are provided with internal thread, the other end inwall of valve body 1 is provided with internal thread, plug 4 by being threaded and installing on this end internal thread, plug 4 top mounting spring 3, piston 2 is installed in spring 3 tops; Described piston 2 is provided with joint ring, is provided with sealing ring 7 in the joint ring; The bottom of described plug 4 is provided with to regulate uses screw socket.Wherein, described joint ring and in the sealing ring 7 established all be made as 1-4 covers (being 3 covers among the figure).Described adjusting screw socket is crosswise or a word shape otch, and the convenient screwdriver of crosswise or a word shape that uses is regulated.Described pressure releasing hole is made as parallel symmetrically arranged 2-4 (being symmetrical arranged 2 for parallel among the figure).
During use, be connected on the former vent valve by connector 5 and get final product.When former vent valve lost efficacy, pressure can be applied on the piston 2, and when pressure surpassed certain value, piston 2 can overcome the elastic force of spring 3 and move down, and until exposing pressure releasing hole 6 down-hole high pressure gas is derived thus.The screw-in depth of using screwdriver to regulate plug 4 can be regulated automatic discharging pressure pressure.
Claims (4)
1. oil gas well cable-passing packer safety discharging air valve, the valve body, piston, spring and the plug that comprise the pipe shape, it is characterized in that: the tube wall on described valve body top is provided with pressure releasing hole, one end of valve body is provided with the connector of bell mouth shape structure, this connector inwall is provided with internal thread, and the other end inwall of valve body is provided with internal thread, and this end internal thread is installed plug, plug top mounting spring, piston is installed in spring top; Described piston is provided with joint ring, is provided with sealing ring in the joint ring; The bottom of described plug is provided with to regulate uses screw socket.
2. oil gas well cable-passing packer safety discharging air valve according to claim 1 is characterized in that: described joint ring and in the sealing ring established all be made as 1-4 covers.
3. oil gas well cable-passing packer safety discharging air valve according to claim 1, it is characterized in that: described adjusting screw socket is crosswise or a word shape otch.
4. oil gas well cable-passing packer safety discharging air valve according to claim 1, it is characterized in that: described pressure releasing hole is made as parallel symmetrically arranged 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170760 CN203175484U (en) | 2013-04-08 | 2013-04-08 | Safety release valve for oil-gas well cable packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170760 CN203175484U (en) | 2013-04-08 | 2013-04-08 | Safety release valve for oil-gas well cable packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175484U true CN203175484U (en) | 2013-09-04 |
Family
ID=49072199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320170760 Expired - Fee Related CN203175484U (en) | 2013-04-08 | 2013-04-08 | Safety release valve for oil-gas well cable packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975822A (en) * | 2015-06-29 | 2015-10-14 | 上海优强石油科技有限公司 | Deflation valve capable of being installed at any depth of underground |
| CN110821438B (en) * | 2019-12-09 | 2024-04-05 | 天津轻工职业技术学院 | Blowout preventer for rod-driven screw pump oil extraction system |
-
2013
- 2013-04-08 CN CN 201320170760 patent/CN203175484U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975822A (en) * | 2015-06-29 | 2015-10-14 | 上海优强石油科技有限公司 | Deflation valve capable of being installed at any depth of underground |
| CN110821438B (en) * | 2019-12-09 | 2024-04-05 | 天津轻工职业技术学院 | Blowout preventer for rod-driven screw pump oil extraction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140408 |