CN2568805Y - Whole blowout preventer for oil field - Google Patents
Whole blowout preventer for oil field Download PDFInfo
- Publication number
- CN2568805Y CN2568805Y CN 02269086 CN02269086U CN2568805Y CN 2568805 Y CN2568805 Y CN 2568805Y CN 02269086 CN02269086 CN 02269086 CN 02269086 U CN02269086 U CN 02269086U CN 2568805 Y CN2568805 Y CN 2568805Y
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- China
- Prior art keywords
- housing
- sealing
- blowout
- flange
- screw mandrel
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- Expired - Fee Related
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Abstract
The utility model relates to a whole blowout preventer for oil fields, which is a medium pressure valve or a high pressure valve used for preventing the blowout of an oil-gas well or controlling the blowout after the blowout occurs. The utility model is composed of a shell body, a sealing gate valve, a screw rod, end flanges, a handle, etc. The shell body is in a structure of which the upper part and the lower part are symmetrical, and the screw rod is positioned on the symmetrical line between the upper end flange and the lower end flange. The utility model has the advantages of convenient and rapid connection with the flange of a wellhead, good sealing property, large through diameter, light weight, quick and convenient open and close, etc. The specific double flange connecting mode can be optionally installed at two directions, and normal workover treatment can be finished after the wellhead is provided with the blowout preventer.
Description
Technical field
The utility model relates to the improvement of a kind of oil well repairing operation with the full envelope shut-in well device that prevents the laggard spray of robbing of generation blowout of oil gas well or generation blowout.
Technical background
At present, widely used full envelope shut-in well device in oil well repairing operation, its structure generally is made up of parts such as housing, upper sealing ring, lower sealing ring, sealing ring, dog screw, flashboard, nut, screw mandrel, sealing mat, end flanges, bearing, studs, nut, clamp nut, handgrip, backing-up screws.When manipulating handgrip rotated, screw mandrel was along with rotation, and the nut that is connected with screw mandrel is in the effect lower edge of screw thread screw mandrel move left and right, and nut drives the flashboard move left and right simultaneously, thereby realized the opening and closing of full envelope shut-in well device.Its major defect is: because housing is asymmetric up and down, adpting flange used studs in two ends is diversified in specifications, and length is different; There is the above-below direction problem in the upper-lower seal ring difference of enclosure interior, thus can not put upside down when installing at the scene, otherwise will not have sealing function, thus cause on-the-spot installation difficulty big, be prone to the maloperation phenomenon is installed; Metallic gasket is only adopted in the sealing of end flanges place, and to the installation requirement harshness of end flanges, periphery is bolt strained inhomogeneous slightly, leakage test be will occur and failure and oil leakage phenomenon suppressed, thereby cause sealing mat to scrap, use once the back just must integral body to scrap at the scene, cause the tremendous economic loss.
Technology contents
The purpose of this utility model is to provide a kind of symmetrical structure up and down that has, and conveniently the scene is installed and used, and the oil field that maloperation can not occur is with sealing the shut-in well device entirely.
The purpose of this utility model is to realize like this, it comprises housing, sealing damper, screw mandrel, end flanges, handgrip, the two ends of housing are flange, sealing damper is arranged in the housing between flange and the flange, one end of sealing damper is provided with screw mandrel, and screw mandrel passes and pass end flanges connection handgrip from the other end of housing, and end flanges is fixedly mounted on the housing, it is characterized in that: housing is a line of symmetry with the axis of screw mandrel, has laterally zygomorphic structure.
The sealing device of above-mentioned sealing damper both sides also is the center line symmetry with the sealing damper.
End flanges and housing junction have metallic gasket.
End flanges and housing junction have metallic gasket, and the peripheral suit sealing ring of metallic gasket.
After adopting technique scheme, advantage of the present utility model is because housing two end flanges and enclosure interior upper-lower seal ring adopt identical symmetrical structure up and down, thereby reach install at the scene and use in safety, convenient, rapidly, maloperation can not appear; Because metallic gasket and sealing ring double seal mode are adopted in the sealing of end flanges place, thereby have improved the success rate of leakage test greatly, have reached good sealing effectiveness, have prolonged the application life of full envelope blowout preventer.Simultaneously the utility model seals blowout preventer entirely and has also that latus rectum is big, in light weight, switch is convenient rapidly, well head installs behind the shut-in well device advantages such as normally workover treatment.
Description of drawings
Fig. 1 is that the utility model device of shunting in a well entirely is in the working state figure of closed condition.
Fig. 2 is that the utility model device of shunting in a well entirely is in the working state figure of open mode.
The specific embodiment
As shown in drawings, a kind of oil field described in the utility model is made up of parts such as housing 1, sealing ring 2, sealing ring 3, dog screw 4, joint ring 5, sealing damper 6, nut 7, screw mandrel 8, sealing mat 9, sealing ring 10, sealing ring 11, studs 12, end flanges 13, nut 14, bearing 15, sealing ring 16, clamp nut 17, backing-up screw 18, sealing ring 19, handgrips 20 with full envelope shut-in well device.Housing 1 has two also symmetrical separately mounting flange 1A, 1B up and down, sealing ring 2 and sealing ring 3 are pressed in the housing 1 by joint ring 5, and by dog screw 4 location, sealing damper 6 is connected as a single entity by nut 7 and screw mandrel 8, flashboard 6 is with nut 7 move left and right under threaded function, and metallic gasket 9, sealing ring 10 are pressed on the housing 1 by end flanges 13.
Housing two ends flange 1A, 1B and enclosure interior joint ring are identical symmetrical structures up and down, with convenient on-the-spot the installation and use, maloperation can not occur; The sealing at end flanges 13 places adopts metallic gasket and sealing ring double seal mode to reach sealing effectiveness, thereby improved the success rate of leakage test greatly, reach good sealing effectiveness, in oil well repairing operation, be used to prevent the generation blowout of oil gas well or the laggard spray of robbing of blowout takes place.
In the work, when the blowout omen appears in the scene, manipulating handgrip 20 rotates screw mandrel 8 immediately, the nut 7 that is connected with screw mandrel 8 simultaneously is under the effect of screw thread, be moved to the left along screw mandrel 8, nut 7 drives flashboard 6 left-hands simultaneously and moves, thereby realizes that the envelope blowout preventer is closed the inner and extraneous contact of oil well entirely, the high pressure sealing that makes oil well inside reaches the purpose that prevents oil gas well generation blowout in four-way flange inside.Carry out the scene robs when spraying when blowout occurring, elder generation's manipulating handgrip rotates screw mandrel, the nut that is connected with screw mandrel simultaneously is under the effect of screw thread, move right along screw mandrel, nut drives flashboard simultaneously and moves right, thereby full envelope shut-in well device is opened, promptly the four-way flange of full envelope shut-in well device with studs and nut and well head linked together then, after being connected firmly immediately manipulating handgrip screw mandrel is rotated, the nut that is connected with screw mandrel simultaneously is under the effect of screw thread, be moved to the left along screw mandrel, nut drives the flashboard left-hand simultaneously and moves, thereby the full envelope shut-in well of realization device is closed inner with the extraneous contact of oil well, the high pressure sealing that makes oil well inside is in four-way flange inside, reach and carry out the purpose that the oil gas well is robbed spray, reduce the personnel casualty accidents that causes owing to blowout, the economic loss that blowout is caused is reduced to minimum.
Claims (4)
1, the full envelope shut-in well device in a kind of oil field, comprise housing (1), sealing damper (6), screw mandrel (8), end flanges (13), handgrip (20), the two ends of housing (1) are flange (1A, 1B), sealing damper (6) is arranged in the housing (1) between flange (1A) and the flange (1B), one end of sealing damper (6) is provided with screw mandrel (8), screw mandrel (8) passes and passes end flanges (13) connection handgrip (20) from the other end of housing (1), end flanges (13) is fixedly mounted on the housing (1), it is characterized in that: housing (1) is a line of symmetry with the axis of screw mandrel (8), have laterally zygomorphic structure, the sealing device of sealing damper (6) both sides is also symmetrical up and down.
2, full envelope shut-in well device according to claim 1, it is characterized in that: the sealing device of sealing damper (6) both sides is the center line symmetry with sealing damper (6) also.
3, full envelope shut-in well device according to claim 1 and 2, it is characterized in that: end flanges (13) has metallic gasket (9) with housing (1) junction.
4, full envelope shut-in well device according to claim 1, it is characterized in that: end flanges (13) has metallic gasket (9), the peripheral suit sealing ring (10) of metallic gasket (9) with housing (1) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269086 CN2568805Y (en) | 2002-08-28 | 2002-08-28 | Whole blowout preventer for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269086 CN2568805Y (en) | 2002-08-28 | 2002-08-28 | Whole blowout preventer for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2568805Y true CN2568805Y (en) | 2003-08-27 |
Family
ID=33734393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02269086 Expired - Fee Related CN2568805Y (en) | 2002-08-28 | 2002-08-28 | Whole blowout preventer for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2568805Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858397B (en) * | 2006-06-09 | 2010-05-12 | 徐元信 | Diameter adjustable blowout preventer for oil field |
| CN106703736A (en) * | 2017-03-20 | 2017-05-24 | 大庆东达节能技术开发服务有限公司 | Anti-theft and pressure maintaining well sealing device for oil field |
| CN110094178A (en) * | 2019-05-31 | 2019-08-06 | 中国石油集团川庆钻探工程有限公司 | Suitable for having the well head reset apparatus and remapping method of bottom flange |
| CN112096334A (en) * | 2020-11-06 | 2020-12-18 | 东营市海天自动化工程有限责任公司 | Combined production tree for production well |
-
2002
- 2002-08-28 CN CN 02269086 patent/CN2568805Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858397B (en) * | 2006-06-09 | 2010-05-12 | 徐元信 | Diameter adjustable blowout preventer for oil field |
| CN106703736A (en) * | 2017-03-20 | 2017-05-24 | 大庆东达节能技术开发服务有限公司 | Anti-theft and pressure maintaining well sealing device for oil field |
| CN110094178A (en) * | 2019-05-31 | 2019-08-06 | 中国石油集团川庆钻探工程有限公司 | Suitable for having the well head reset apparatus and remapping method of bottom flange |
| CN110094178B (en) * | 2019-05-31 | 2024-06-07 | 中国石油集团川庆钻探工程有限公司 | Wellhead resetting device and resetting method suitable for bottomed flange |
| CN112096334A (en) * | 2020-11-06 | 2020-12-18 | 东营市海天自动化工程有限责任公司 | Combined production tree for production well |
| CN112096334B (en) * | 2020-11-06 | 2022-02-08 | 胜利方兰德石油装备股份有限公司 | Combined production tree for production well |
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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 |