CN202926286U - Well mouth safety valve switching device - Google Patents
Well mouth safety valve switching device Download PDFInfo
- Publication number
- CN202926286U CN202926286U CN 201220677122 CN201220677122U CN202926286U CN 202926286 U CN202926286 U CN 202926286U CN 201220677122 CN201220677122 CN 201220677122 CN 201220677122 U CN201220677122 U CN 201220677122U CN 202926286 U CN202926286 U CN 202926286U
- Authority
- CN
- China
- Prior art keywords
- well mouth
- piston
- switching device
- mandrel
- oil
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates an oil field well mouth switching tool, in particular to a well mouth safety valve switching device. According to the technical scheme of the utility model, the well mouth safety valve switching device mainly comprises a mandrel sleeve, a bolt, a piston and a mandrel, wherein the inside of the mandrel sleeve is a cavity; the piston is arranged in the cavity; the piston is fixed on the mandrel sleeve through the bolt; one end of the mandrel sleeve is provided with a screw thread, and the other end of the mandrel sleeve is connected with the mandrel; and one end of the mandrel is provided with a handle; and the other end of the mandrel is provided with a circular head which is matched with the piston. The well mouth safety valve switching device has the beneficial effects that the well mouth safety valve switching device can be applied to oil, gas and water wells provided with well mouth safety valves, and the problems that a hydraulic pressure is unavailable, the well mouth safety valves cannot be opened and the production of the oil, gas and water wells is influenced by breakage of oil windows, body leakage, damages to hydraulically-controlled pipeline joints and the like of the well mouth safety valves are solved.
Description
Technical field
The utility model relates to a kind of oil field shaft mouth switching tools, particularly a kind of well mouth release valve switching device.
Background technology
Ocean platform oil, gas, well production tree all are equipped with the ground well mouth release valve at present, well mouth release valve is installed on the below of production tree total valve, it is the final executing agency in the well head safe system, emergency can be cut off rapidly oil, gas, well oil (gas, water) circulation road, guarantees the production safety of oil, gas, well.Well mouth release valve mainly comprises safety valve and hydraulic unit driver two parts, is the execution unit of aboveground security system.Hydraulic oil enters in the cavity on driver top by liquid controling pipe line, thereby the spring that compresses the bottom is opened valve, and assurance oil, gas, well are normally produced.The controlled pressure pressure release, spring promotes valve rod mechanism valve-off and wellhead assembly, guarantees flow sheet equipment safety.
Oil, gas, well are normal production the time, and fluid control pressure must keep valve body to be in opening.If the breakage of well head safe valve oil window, body seepage, the damage of liquid controling pipe line joint etc. occur, fluid control pressure can occur can not suppress, the problem of the well mouth release valve of not opening causes the production tree pathway closure, impact oil, gas, well production.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of well mouth release valve switching device is provided.
Its technical scheme is: mainly be comprised of top stem casing, bolt, piston, push rod, described top stem casing inside is cavity, is provided with piston in cavity, and piston is bolted on top stem casing; One end of described top stem casing is provided with screw thread, and the other end connects push rod, and an end of push rod is provided with handle, and the other end is provided with round end, coordinates with piston.
One side of above-mentioned piston is provided with groove, matches with the round end of push rod.
The beneficial effects of the utility model are: the oil, gas, the well that can be applicable to be equipped with well mouth release valve, having solved well mouth release valve can not suppress because of the fluid control pressure that the reasons such as oily window breakage, body seepage, the damage of liquid controling pipe line joint cause, the well mouth release valve of not opening, the problem of impact oil, gas, well production.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: top stem casing 1, bolt 2, piston 3, push rod 4, screw thread 5, handle 6.
The specific embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model mainly is comprised of top stem casing 1, bolt 2, piston 3, push rod 4, and described top stem casing 1 inside is cavity, is provided with piston 3 in cavity, and piston 3 is fixed on top stem casing 1 by bolt 2; One end of described top stem casing 1 is provided with screw thread 5, and the other end connects push rod 4, and an end of push rod 4 is provided with handle 6, and the other end is provided with round end, coordinates with piston 3.
One side of above-mentioned piston 3 is provided with groove, matches with the round end of push rod 4.
The utility model links together by screw thread and the well mouth release valve of top stem casing bottom, clockwise rotate the handle of push rod one side, push rod drives lower piston and moves, compression well mouth release valve valve rod, thereby the spring of compression well mouth release valve bottom, open well mouth release valve, open oil, gas, well oil (gas, water) circulation road, assurance oil, gas, well are normally produced.
Rotate counterclockwise handle, push rod drives lower piston to mobile in the other direction, and the spring of well mouth release valve bottom promotes valve rod mechanism and closes well mouth release valve, closes oil, gas, well oil (gas, water) circulation road.
Claims (2)
1. well mouth release valve switching device, it is characterized in that: mainly formed by top stem casing (1), bolt (2), piston (3), push rod (4), described top stem casing (1) inside is cavity, be provided with piston (3) in cavity, piston (3) is fixed on top stem casing (1) by bolt (2); One end of described top stem casing (1) is provided with screw thread (5), and the other end connects push rod (4), and an end of push rod (4) is provided with handle (6), and the other end is provided with round end, coordinates with piston (3).
2. well mouth release valve switching device according to claim 1, it is characterized in that: a side of described piston (3) is provided with groove, matches with the round end of push rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220677122 CN202926286U (en) | 2012-12-11 | 2012-12-11 | Well mouth safety valve switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220677122 CN202926286U (en) | 2012-12-11 | 2012-12-11 | Well mouth safety valve switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926286U true CN202926286U (en) | 2013-05-08 |
Family
ID=48216259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220677122 Expired - Fee Related CN202926286U (en) | 2012-12-11 | 2012-12-11 | Well mouth safety valve switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926286U (en) |
-
2012
- 2012-12-11 CN CN 201220677122 patent/CN202926286U/en not_active Expired - Fee Related
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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: 20130508 Termination date: 20131211 |