CN2878663Y - Constant pressure valve and anti-spray device for bushing - Google Patents
Constant pressure valve and anti-spray device for bushing Download PDFInfo
- Publication number
- CN2878663Y CN2878663Y CN 200620089852 CN200620089852U CN2878663Y CN 2878663 Y CN2878663 Y CN 2878663Y CN 200620089852 CN200620089852 CN 200620089852 CN 200620089852 U CN200620089852 U CN 200620089852U CN 2878663 Y CN2878663 Y CN 2878663Y
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- blowout prevention
- blowout
- valve ball
- 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
Links
Images
Landscapes
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to a sleeve gas pressure fixing valve and blowout prevention device used in oil fields, comprising a blowout prevention ball bed, a blowout prevention ball, a blowout prevention ball shell, an upper shell, a pressing cap, a peak thread, a spring, an upper short connector, an upper valve ball, an upper valve ball bed, a lower short connector, a lower valve ball, a lower valve ball bed, a clamped rim, a steel ring, a lower shell and a thread blockage. The utility model is characterized in that the sleeve gas pressure fixing parts are controlled by the upper valve ball and the lower valve ball that are heated by oil-well yielding liquid, the blowout prevention part is installed after the production valve, after well blowout, sealed by pressure difference. The utility model can prevent the sleeve gas pressure fixing part from being frozen and blocked in winter, the gas pressure can be discharged normally. Meanwhile, while the sucker rod is broken in the oil pumping well, the utility model can play the role of blowout prevention and environmental protection. The utility model has a new and simple structure with excellent effects and can be widely applied in oil fields.
Description
Technical field
The utility model relates to a kind of oil field casing gas constant pressure valve and blowout hookup of being used for.
Background technology
Present sleeve pipe gas constant pressure valve and blowout hookup, major defect is: sleeve pipe gas constant pressure valve does not have companion's heat or accompanies heat not enough, and it is stifled to cause often freeze winter, can not normally put pressure, influence production; Blowout hookup generally adopts ball-and-seat, but resistance is bigger, and inconvenience is installed, and does not have large-scale popularization.
Summary of the invention
Often freeze stifled winter and well head does not have the blowout hookup problem in order to solve present sleeve pipe gas constant pressure valve, the utility model provides a kind of sleeve in oil field gas constant pressure valve and blowout hookup of being used for, adopt this sleeve pipe gas constant pressure valve and blowout hookup, can guarantee that sleeve pipe gas constant pressure valve does not freeze stifled winter, normal level pressure is put pressure, guarantee oil well production, simultaneously, play the sucker rod well head blowout prevention effect of having no progeny.
The technical scheme that its technical problem that solves the utility model adopts is: the blowout prevention ball seat that spray-proof ball, blowout prevention ball cover will be housed connects with the upper shell right-hand member by screw thread, lower valve ball, following short circuit, upper valve ball seat, upper valve ball will be housed successively, go up short circuit, spring and upper shell lower end thread connection, to go on the jackscrew on the upper shell in the top wire hole, first-class pressure cap, left end, lower house left end thread connection on plug and the upper shell, to add ring gasket between upper shell and the lower house at last, got final product by clip is fixing.During use, with the blowout prevention ball seat, lower house left end and production valve, sleeve valve connects, left end connects by clip with the production flow line that enters the station under the upper shell, during the oil well ordinary production, sleeve pipe gas enters lower house by sleeve valve, back down lower valve ball again and enter down short circuit, backing down upper valve ball enters in the upper shell by the hole on the upper valve ball seat wall, enter the production flow line that enters the station after converging with produced liquid in oil well, can pass through the jackscrew control spring, thereby determine that the upper valve ball opening pressure is the oil well casing atmospheric pressure, the assurance oil well is depressed production at the best cover, owing to produced liquid in oil well companion heat is arranged, can guarantee that valve ball and ball seat do not freeze, not stifled.When the pumpingh well polished rod is disconnected, to stand and go up gas flow production valve in each well institute produce oil liquid and the sleeve pipe gas, spray-proof ball relies on the blowout prevention ball seat under differential pressure action, play sealing function, thereby prevents the blowout contaminated environment.The utility model level pressure and blowout prevention part can be separated independent enforcement.
The beneficial effects of the utility model are, can guarantee effectively that sleeve pipe gas level pressure part do not freeze stifledly winter, normally put pressure, guarantee oil well production, simultaneously, during the disconnected accident of rod-pumped well generation sucker rod, also can play the blowout prevention effect, prevent the pollution of the environment.The utility model novel structure, simple, effective.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model general structure schematic diagram.
1. blowout prevention ball seats among the figure, 2. spray-proof ball, 3. blowout prevention ball cover, 4. upper shell, 5. pressure cap, 6. jackscrew, 7. spring is 8. gone up short circuit, 9. upper valve ball, 10. upper valve ball seat, 11. times short circuits, 12. lower valve balls, 13. the lower valve ball seat, 14. clips, 15. steel rings, 16. lower houses, 17. plugs.
The specific embodiment
In the accompanying drawing, blowout prevention ball seat (1) left end is external diameter Φ 120mm standard clip head, and right-hand member has the ladder pin thread, and the end is the valve seat shape; Spray-proof ball (2) is a finished parts; Blowout prevention ball cover (3) is hood-like, and there is negative thread on the left side, has several apertures, right part that the bigger hole of one diameter is arranged on the wall of left side, diameter of phi 60mm, and this hole area is greater than all aperture area sums on the wall; Have than major path in the middle of the upper shell (4), a left side, bottom diameter Φ 100mm, right-hand member internal diameter Φ 62mm, left end, lower end, upper right side have negative thread, bottom righthand side is external diameter Φ 120mm standard clip head, wall upper top and side have two band pin threads to be used for the little outlet of setting pressure table, sample valve, and the top also has outside pin thread, an internal female to be used to install the little outlet of jackscrew (6); Pressure cap (5), jackscrew (6), spring (7) are finished parts; Last short circuit (8) is tubular, internal diameter Φ 20mm, and there is pin thread the lower end; Upper valve ball (9) is a finished parts; Upper valve ball seat (10) is tubular, upper end negative thread, lower end pin thread, and the passage bottom has a sealing to use the sphere step, and several apertures are arranged on the inwall above the step; Following short circuit (11) is tubular, internal diameter Φ 40mm, and upper and lower end has negative thread; Lower valve ball (12) is a finished parts; Lower valve ball seat (13) lower end is external diameter Φ 120mm standard clip head, and there is the ladder pin thread upper end, and the end is the valve seat shape; Clip (14), steel ring (15) are finished parts; Lower house (16) is the threeway shape, internal diameter Φ 62mm, and left end, upper end are external diameter Φ 120mm standard clip head, and right-hand member has negative thread, and upper right quarter and lower left quarter respectively have a band pin thread to be used for the little outlet of setting pressure table, atmospheric valve; Plug (17) is a standard component.
Claims (7)
1, a kind of sleeve pipe gas constant pressure valve and blowout hookup, comprise: the blowout prevention ball seat, spray-proof ball, the blowout prevention ball cover, upper shell, pressure cap, jackscrew, spring, last short circuit, upper valve ball, the upper valve ball seat, following short circuit, lower valve ball, the lower valve ball seat, clip, steel ring, lower house, plug, its connected mode is: spray-proof ball will be housed, the blowout prevention ball seat of blowout prevention ball cover connects with the upper shell right-hand member by screw thread, lower valve ball will be housed successively, following short circuit, the upper valve ball seat, upper valve ball, last short circuit, spring and upper shell lower end thread connection, to go on the jackscrew on the upper shell in the top wire hole, first-class pressure cap, left end on plug and the upper shell, lower house left end thread connection, with having added ring gasket between upper shell and the lower house, fix at last by clip.
2, described a kind of sleeve pipe gas constant pressure valve of root a tree name claim 1 and blowout hookup, it is characterized in that: blowout prevention ball seat left end is the clip head, and right-hand member has the ladder pin thread, and the end is the valve seat shape.
3, described a kind of sleeve pipe gas constant pressure valve of root a tree name claim 1 and blowout hookup, it is characterized in that: the blowout prevention ball cover is hood-like, and there is negative thread on the left side, have on the wall of left side several apertures, right part have an area greater than all aperture area sums on the wall than macropore.
4, described a kind of sleeve pipe gas constant pressure valve of root a tree name claim 1 and blowout hookup, it is characterized in that: have than major path in the middle of the upper shell, left end, lower end, upper right side have negative thread, bottom righthand side is the clip head, there is the little outlet of two band pin threads wall upper top and side, and the top also has the little outlet of an outside pin thread, internal female.
5, described a kind of sleeve pipe gas constant pressure valve of root a tree name claim 1 and blowout hookup, it is characterized in that: the upper valve ball seat is tubular, upper end negative thread, lower end pin thread, the passage bottom has a sealing to use the sphere step, and several apertures are arranged on the inwall above the step.
6, described a kind of sleeve pipe gas constant pressure valve of root a tree name claim 1 and blowout hookup, it is characterized in that: lower valve ball seat lower end is the clip head, and there is the ladder pin thread upper end, and the end is the valve seat shape.
7, described a kind of sleeve pipe gas constant pressure valve of root a tree name claim 1 and blowout hookup, it is characterized in that: lower house is the threeway shape, and left end, upper end are the clip head, and right-hand member has negative thread, and upper right quarter and lower left quarter respectively have the little outlet of a band pin thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089852 CN2878663Y (en) | 2006-03-16 | 2006-03-16 | Constant pressure valve and anti-spray device for bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089852 CN2878663Y (en) | 2006-03-16 | 2006-03-16 | Constant pressure valve and anti-spray device for bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878663Y true CN2878663Y (en) | 2007-03-14 |
Family
ID=37861078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089852 Expired - Fee Related CN2878663Y (en) | 2006-03-16 | 2006-03-16 | Constant pressure valve and anti-spray device for bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878663Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592024A (en) * | 2009-07-15 | 2009-12-02 | 中国海洋石油总公司 | Degassing system for closed production space of oil well |
| CN101705805B (en) * | 2009-11-06 | 2012-08-22 | 田茂文 | Well-head shutoff pressure prevention and casting head gas recovery integrated device |
-
2006
- 2006-03-16 CN CN 200620089852 patent/CN2878663Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592024A (en) * | 2009-07-15 | 2009-12-02 | 中国海洋石油总公司 | Degassing system for closed production space of oil well |
| CN101705805B (en) * | 2009-11-06 | 2012-08-22 | 田茂文 | Well-head shutoff pressure prevention and casting head gas recovery integrated device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206146585U (en) | Universal pressure tapping of quick assembly disassembly | |
| CN2878663Y (en) | Constant pressure valve and anti-spray device for bushing | |
| CN201071707Y (en) | Oil gas anti-theft constant-pressure recovery valve of casing tube | |
| CN205745501U (en) | A kind of electric heater blowoff valve | |
| CN203285389U (en) | Downhole casing gas-release valve capable of backwashing well | |
| CN201857913U (en) | Well washing valve for completion of horizontal well | |
| CN205561961U (en) | Prevent tearing open gas meter connector | |
| CN206175695U (en) | Single cold water mouth | |
| CN202391380U (en) | Anti-theft scavenging joint free of emptying pressure at oil production wellhead | |
| CN201090751Y (en) | Exhaustion water stop valve | |
| CN201687791U (en) | Rectifier valve sealed by spherical surface | |
| CN107191604A (en) | A kind of discharge device | |
| CN201037582Y (en) | Water-hammer eliminator | |
| CN206845909U (en) | A kind of discharge device | |
| CN205806494U (en) | Extension bar antifreezing hydrant | |
| CN2603887Y (en) | Water economizer | |
| CN201715049U (en) | Check ball valve with internal threads | |
| CN203116298U (en) | Multifunctional gas heating water heater valve | |
| CN208669733U (en) | Pressure constant pressure regulating valve and the automotive brake fluid constant pressure oil supply oil piping system for using it | |
| CN104976358A (en) | Fluid valve | |
| CN201412105Y (en) | Clamp flange throttling device | |
| CN205155209U (en) | Sampling valve | |
| CN216240598U (en) | Water trap of natural gas exploitation | |
| CN203067867U (en) | Siphon preventing device | |
| CN201344262Y (en) | Air inlet and outlet valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Jihong Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20140316 |