CN205743818U - Wellhead blowout preventer - Google Patents
Wellhead blowout preventer Download PDFInfo
- Publication number
- CN205743818U CN205743818U CN201520847384.0U CN201520847384U CN205743818U CN 205743818 U CN205743818 U CN 205743818U CN 201520847384 U CN201520847384 U CN 201520847384U CN 205743818 U CN205743818 U CN 205743818U
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- CN
- China
- Prior art keywords
- blowout preventer
- valve
- wellhead
- wellhead blowout
- ball base
- 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 discloses a kind of wellhead blowout preventer.Described wellhead blowout preventer is used for oil field shaft mouth replacing with pressure wellhead equipment, described wellhead blowout preventer is arranged between wellhead flange and production tree, it is characterized in that, described wellhead blowout preventer includes body, seal, upper ball base, lower ball base, ball valve, short sleeve, drain valve and injection valve, described drain valve and injection valve are symmetrically set in the both sides of described body, described upper ball base and described lower ball base clamp described ball valve and are located at the center of described body, and described seal is fixed described short sleeve and run through described body and described ball valve.The wellhead blowout preventer that this utility model provides uses ball valve sealing, prevents and control the generation of gas blowout accident, and this structure operation is simple, saves construction cost, improves production efficiency.
Description
Technical field
This utility model relates to oilfield, particularly relates to a kind of wellhead blowout preventer.
Background technology
Prior art oil field shaft mouth replacing with pressure wellhead equipment, needs first by wellhead sealing, and operation element amount is big, cost is high for this, waste time and energy, and there is the biggest potential safety hazard.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of wellhead blowout preventer.
The wellhead blowout preventer that this utility model provides includes for oil field shaft mouth replacing with pressure wellhead equipment, described wellhead blowout preventer is arranged between wellhead flange and production tree, described wellhead blowout preventer includes body, seal, upper ball base, lower ball base, ball valve, short sleeve, drain valve and injection valve, described drain valve and injection valve are symmetrically set in the both sides of described body, described upper ball base and described lower ball base clamp described ball valve and are located at the center of described body, and described seal is fixed described short sleeve and run through described body and described ball valve.
In a kind of preferred embodiment of the present utility model, also including that trapezoidal cushion rubber and disc spring, described trapezoidal cushion rubber are fixed described ball valve and be located between described upper ball base and described lower ball base, described disc spring is located on short sleeve and connects described upper ball base and described lower ball base.
In a kind of preferred embodiment of the present utility model, also include that plug, circlip for hole and balanced valve, described plug and circlip for hole are respectively arranged on the both sides of described body, seal described balanced valve be located at described internal.
In a kind of preferred embodiment of the present utility model, also include shelves silk, valve rod and direction board, described shelves silk, valve rod and direction board are disposed far from one end of described balanced valve, described shelves silk and the direction board described valve rod of sealing to be run through described body and is partly located at described ball valve.
In a kind of preferred embodiment of the present utility model, also include that multiple O shape cushion rubber, the plurality of O shape cushion rubber are respectively arranged in the gap of described body.
In a kind of preferred embodiment of the present utility model, described O shape cushion rubber is nitrile rubber.
In a kind of preferred embodiment of the present utility model, described wellhead blowout preventer is connected by greasing with described production tree.
In a kind of preferred embodiment of the present utility model, also include greasing flange, described wellhead flange and described greasing Flange joint.
In a kind of preferred embodiment of the present utility model, described ball valve is provided with through hole and ball valve plug, and described ball valve plug is plugged in described through hole.
Compared to prior art, the wellhead blowout preventer that this utility model provides uses ball valve sealing, prevents and control the generation of gas blowout accident, and this structure operation is simple, saves construction cost, improves production efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the planar structure schematic diagram of the wellhead blowout preventer that this utility model provides；
Fig. 2 is the profile in the face of wellhead blowout preventer K-K shown in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Please refer to Fig. 1 and Fig. 2, the wellhead blowout preventer that this utility model provides includes that described wellhead blowout preventer is arranged between wellhead flange and production tree for oil field shaft mouth replacing with pressure wellhead equipment.
Described wellhead blowout preventer includes body 1, seal 2, upper ball base 3, lower ball base 8, ball valve 4, short sleeve 16, drain valve 18 and injection valve 17, described drain valve 18 and injection valve 17 are symmetrically set in the both sides of described body 1, described upper ball base 3 and described lower ball base 8 clamp described ball valve 4 and are located at the center of described body 1, described seal 2 fixes described short sleeve 16, and described short sleeve 16 runs through described body 1 and described ball valve 4.
Preferably, described wellhead blowout preventer also includes trapezoidal cushion rubber 7, disc spring 9, includes plug 10, circlip for hole 6, balanced valve 5, shelves silk 13, valve rod 12 and direction board 11, described trapezoidal cushion rubber 7 is fixed described ball valve 4 and is located between described upper ball base 3 and described lower ball base 8, and described disc spring 9 is located on short sleeve 16 and connects described upper ball base 3 and described lower ball base 8；Described plug 10 and circlip for hole 6 are respectively arranged on the both sides of described body 1, seal described balanced valve 5 and are located in described body 1；Described shelves silk 13, valve rod 12 and direction board 11 are disposed far from one end of described balanced valve 5, and described shelves silk 13 and direction board 11 seal described valve rod 12, and described valve rod 12 runs through described body 1 and part is located at described ball valve 4.
Preferably, described wellhead blowout preventer also includes multiple O shape cushion rubber, the plurality of O shape cushion rubber is respectively arranged in the gap of described body, further, described O shape cushion rubber is first cushion rubber the 19, second cushion rubber the 20, the 3rd cushion rubber the 21, the 4th cushion rubber the 22, the 5th cushion rubber the 23, the 6th cushion rubber 24, and described first cushion rubber 19, described 3rd cushion rubber 21, described 4th cushion rubber 22 seal described short sleeve 16 and described body 1；Described second cushion rubber 20 seals described plug 10 and described body 1；Described 5th cushion rubber 23 seals described circlip for hole 6 and described body 1；Described 6th cushion rubber 24 seals described valve rod 12 and described body 1.
Preferably, also include that the first screw 14 and the second screw 15, described first screw 14 and the second screw 15 are fixed described shelves silk 13 and be located at described body 1.
In a kind of preferred embodiment of the present utility model, described O shape cushion rubber is nitrile rubber.
Further, described wellhead blowout preventer is connected by greasing with described production tree；Also include greasing flange (figure does not regards), described wellhead flange and described greasing Flange joint.
In the present embodiment, described ball valve is provided with through hole and ball valve plug (figure does not regards), when described ball valve is closed, described ball valve plug is plugged in described through hole, when described ball valve is opened, is taken out by described ball valve plug in described through hole, increase well head flow, reduce pressure.
When needing replacing wellhead equipment with pressure, when ball valve is opened, internal water pressure testing 70MPa keeps not dropping for 30 minutes, and when ball valve is closed, bottom water pressure testing 20MPa keeps not dropping for 30 minutes.
In sum, the wellhead blowout preventer that this utility model provides uses ball valve sealing, prevents and control the generation of gas blowout accident, and this structure operation is simple, saves construction cost, improves production efficiency.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (9)
1. a wellhead blowout preventer, for oil field shaft mouth replacing with pressure wellhead equipment, described wellhead blowout preventer is arranged between wellhead flange and production tree, it is characterized in that, described wellhead blowout preventer includes body, seal, upper ball base, lower ball base, ball valve, short sleeve, drain valve and injection valve, described drain valve and injection valve are symmetrically set in the both sides of described body, described upper ball base and described lower ball base clamp described ball valve and are located at the center of described body, and described seal is fixed described short sleeve and run through described body and described ball valve.
Wellhead blowout preventer the most according to claim 1, it is characterized in that, also including that trapezoidal cushion rubber and disc spring, described trapezoidal cushion rubber are fixed described ball valve and be located between described upper ball base and described lower ball base, described disc spring is located on short sleeve and connects described upper ball base and described lower ball base.
Wellhead blowout preventer the most according to claim 1, it is characterised in that also include that plug, circlip for hole and balanced valve, described plug and circlip for hole are respectively arranged on the both sides of described body, seal described balanced valve be located at described internal.
Wellhead blowout preventer the most according to claim 3, it is characterized in that, also include that shelves silk, valve rod and direction board, described shelves silk, valve rod and direction board are disposed far from one end of described balanced valve, described shelves silk and the direction board described valve rod of sealing and run through described body and be partly located at described ball valve.
Wellhead blowout preventer the most according to claim 1, it is characterised in that also include that multiple O shape cushion rubber, the plurality of O shape cushion rubber are respectively arranged in the gap of described body.
Wellhead blowout preventer the most according to claim 5, it is characterised in that described O shape cushion rubber is nitrile rubber.
Wellhead blowout preventer the most according to claim 1, it is characterised in that described wellhead blowout preventer is connected by greasing with described production tree.
Wellhead blowout preventer the most according to claim 1, it is characterised in that also include greasing flange, described wellhead flange and described greasing Flange joint.
Wellhead blowout preventer the most according to claim 1, it is characterised in that described ball valve is provided with through hole and ball valve plug, described ball valve plug is plugged in described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847384.0U CN205743818U (en) | 2015-10-29 | 2015-10-29 | Wellhead blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847384.0U CN205743818U (en) | 2015-10-29 | 2015-10-29 | Wellhead blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205743818U true CN205743818U (en) | 2016-11-30 |
Family
ID=57387311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520847384.0U Expired - Fee Related CN205743818U (en) | 2015-10-29 | 2015-10-29 | Wellhead blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205743818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257236A (en) * | 2015-10-29 | 2016-01-20 | 宝鸡巨基机械制造有限公司 | Wellhead blowout preventer |
-
2015
- 2015-10-29 CN CN201520847384.0U patent/CN205743818U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257236A (en) * | 2015-10-29 | 2016-01-20 | 宝鸡巨基机械制造有限公司 | Wellhead blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20181029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |