CN2546625Y - Protector for often shut-down well - Google Patents
Protector for often shut-down well Download PDFInfo
- Publication number
- CN2546625Y CN2546625Y CN 02211801 CN02211801U CN2546625Y CN 2546625 Y CN2546625 Y CN 2546625Y CN 02211801 CN02211801 CN 02211801 CN 02211801 U CN02211801 U CN 02211801U CN 2546625 Y CN2546625 Y CN 2546625Y
- Authority
- CN
- China
- Prior art keywords
- relief valve
- pressure relief
- valve
- well
- spring
- 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
Disclosed is a protecting device of a constantly closed well, comprising a flange body and a plurality of screws which are arranged on the periphery of the flange and are corresponding to the flange on the wellhead. The utility model is characterized in that a pressure relief valve and a safety valve are sequentially arranged on the flange body; a spring arranged on a spring base is arranged in the pressure relief valve; a connecting stop hole of a pressure relief supporting rod is arranged on the pressure relief valve; a safety valve is arranged on one side of the pressure relief valve and a spring is arranged in the safety valve. The utility model has the advantages that because of the design of the pressure relief valve and the safety valve, the constantly closed well is equipped with a protecting device to ensure the operational safety of workers when the production of the constantly closed well is resumed; the environment pollution caused by the overflow of the oil is also avoided; the pressure range of the pressure relief valve can be designed according to the actual situation of the oil well. Besides the advantages above, the utility model is theft proof if the flange body is made of epoxy resins materials when producing. The protecting effect for the oil well becomes better.
Description
Technical field: the utility model relates to a kind of oil field often shut-down well (abandoned well, often shut-down well, bailing well, often drive a well between stopping) and water injection well or the water supply well protector similar to this type of situation.
Background technology: the oil field of the prior art often shut-down well overwhelming majority does not have protector, the wind and weather between often, and sandstone cause damage to the oil field often shut-down well, and some oil wells of also thoroughly not scrapping also often have some oil to flow out contaminated environment from pipeline.Especially between often stopping, drive a well, drop into a large amount of manpower financial capacities when producing once more and just can resume production, caused unnecessary waste.In recent years, have a small part oil well to be provided with protector, but this protector is to adopt metal material to make, and except that losing easily, more mainly is the function that it does not have pressure release and pressure measurement, has a lot of unsafe factors.Resume production at oil well, the workman often because the pressure of down-hole crosses that senior general's protective cover is gone out and the overflowing of oil, not only causes personnel's injures and deaths but also has caused the pollution of environment in operating process.
Summary of the invention: the purpose of this utility model is the deficiency at above-mentioned technology, and provides a kind of often shut-down well protector with pressure release and pressure measurement safety protection function to people.This protector mainly comprises flange body (5), on the periphery of flange body (5), be provided with a plurality of and the corresponding screw of wellhead flange (3), concrete structure is: be provided with relief valve (1) and safety valve (2) on the flange body (5) successively, establish spring (7) in the relief valve (1), spring (7) is located on the spring base (4), also be provided with the pressure release push rod on the relief valve (1) and connect seam (6), a side of relief valve (1) is provided with safety valve (2), establishes spring (8) in the safety valve (2).
The utility model has the advantages that: owing to adopted the design of pressure release and safety valve, make often shut-down well have safety device, guaranteed the safety of often shut-down well when the workman that resumes production operates effectively, also prevented since oil overflow pollution to surrounding environment.The pressure limit that its relief valve is suitable for can be according to the actual conditions design of oil well.When producing,, except that having above-mentioned advantage, also can prevent stolenly, strengthen protection oil well as flange body being adopted epoxide resin material make.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Specific embodiment:
With reference to Fig. 1,2, this often shut-down well protector mainly comprises flange body 5, on the periphery of flange body 5, be provided with a plurality of and the corresponding screw 3 of wellhead flange, concrete structure is: be provided with relief valve 1 and safety valve 2 on the flange body 5 successively, establish spring 7 in the relief valve 1, spring 7 is located on the spring base 4, also is provided with the pressure release push rod on the relief valve 1 and connects seam 6, side at relief valve 1 is provided with safety valve 2, establishes spring 8 in the safety valve 2.Operating principle: when safety valve reached the pressure of setting, safety valve was opened automatically, and the protection oil well is kept the pressure of a safety.When often shut-down well is worked once more, open relief valve, be convenient to operation, also can insert the connection seam by the pressure in the relief valve measuring well simultaneously with being connected to manometric pressure release push rod.
Claims (1)
1, a kind of often shut-down well protector, mainly comprise flange body (5), on the periphery of flange body (5), be provided with a plurality of and the corresponding screw of wellhead flange (3), it is characterized in that: be provided with relief valve (1) and safety valve (2) on the flange body (5) successively, establish spring (7) in the relief valve (1), spring (7) is located on the spring base (4), also is provided with the pressure release push rod on the relief valve (1) and connects seam (6), side at relief valve (1) is provided with safety valve (2), establishes spring (8) in the safety valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211801 CN2546625Y (en) | 2002-05-17 | 2002-05-17 | Protector for often shut-down well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211801 CN2546625Y (en) | 2002-05-17 | 2002-05-17 | Protector for often shut-down well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2546625Y true CN2546625Y (en) | 2003-04-23 |
Family
ID=33691616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211801 Expired - Fee Related CN2546625Y (en) | 2002-05-17 | 2002-05-17 | Protector for often shut-down well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2546625Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836278A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | Flange with pressure relief function for low-pressure boiler |
-
2002
- 2002-05-17 CN CN 02211801 patent/CN2546625Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836278A (en) * | 2012-11-27 | 2014-06-04 | 大连经济技术开发区圣洁真空技术开发有限公司 | Flange with pressure relief function for low-pressure boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |