CN201180514Y - Multifunctional gripper pipe blowout preventer - Google Patents
Multifunctional gripper pipe blowout preventer Download PDFInfo
- Publication number
- CN201180514Y CN201180514Y CNU2008200334816U CN200820033481U CN201180514Y CN 201180514 Y CN201180514 Y CN 201180514Y CN U2008200334816 U CNU2008200334816 U CN U2008200334816U CN 200820033481 U CN200820033481 U CN 200820033481U CN 201180514 Y CN201180514 Y CN 201180514Y
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- flashboard
- semi
- enclosed
- assembly
- flashboard assembly
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Abstract
The utility model provides a multifunction gripper tube blowout preventer, comprising a shell, a totally enclosed flashboard assembly and semi-enclosed flashboard assemblies; one set of the totally enclosed flashboard assembly and two sets of the semi-enclosed flashboard assemblies are arranged on the upper, middle and lower parts of a main passage of the shell; and the front end of a semi-enclosed flashboard of one set of the semi-enclosed flashboard assembly has a semicircular hollow cavity the inner wall of which is provided with convex and concave teeth. The multifunction gripper tube blowout preventer adopts one set of the totally enclosed flashboard assembly and two sets of the semi-enclosed flashboard assemblies, and the convex and concave teeth are arranged on the inner wall of the semicircular hollow cavity on the front end of the flashboard in the one set of the semi-enclosed flashboard assembly, thereby the multifunction gripper tube blowout preventer has the functions of totally enclosing and semi enclosing an oil well and fixing an oil pipe, has a compact structure and convenient operation, and effectively improves work efficiency.
Description
Technical field
The utility model relates to a kind of oilfield control appliance, particularly a kind of multifunction card pipe preventer.
Background technology
In oilfield drilling and maintenance process, well kick and gas blowout accident happen occasionally, and must use preventer to seal well head, to guarantee the safety of operating personnel and equipment.The existing double ram type preventer of Shi Yonging, it mainly is made up of housing, half-closed type flashboard assembly and full-enclosed type flashboard assembly, half-closed type flashboard assembly and full-enclosed type flashboard assembly is installed respectively in the main channel of housing is from top to bottom constituted double ram type preventer.When in the well head oil pipe being arranged, adopt half-closed type flashboard assembly, hold oil pipe tightly, form sealing; When in the well head during no oil pipe, then adopt full-enclosed type flashboard assembly that well head is sealed.Since in oil recovery process, the reciprocating motion of sucker rod, the reciprocal operation of Chou You lifting each time all can make tubing vibration and wriggling, causes pumping efficiency low, and oil pipe produces fatigue damage, thereby has shortened the application life of sucker rod and oil pipe.At present,, adopt slips or anchor fluke formula anchor usually, but its structure is comparatively complicated, use inconvenience in order to make the relative fixed of oil pipe.
The utility model content
For overcoming the deficiencies in the prior art part, the utility model provide a kind of rational in infrastructure, be convenient to the multifunction card pipe preventer operating, increase work efficiency, not only have the sealing well head, prevent the function of well kick blowout, and have the fixedly function of oil pipe.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises housing, full-enclosed type flashboard assembly and half-closed type flashboard assembly; One cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies are the upper, middle and lower distribution and are installed in the housing main channel, and wherein the front end semicircular cavities inwall that partly seals flashboard of a cover half-closed type flashboard assembly is provided with shaggy tooth.When in the well head oil pipe being arranged, adopt half-closed type flashboard assembly, hold oil pipe tightly, form sealing; When in the well head during no oil pipe, then adopt full-enclosed type flashboard assembly that well head is sealed; When carrying out oil producing operation fixedly during oil pipe, then adopt half-closed type flashboard assembly that flashboard has shaggy tooth with oil pipe screens, fixing, thereby reach half envelope, full oil sealing well and the fixing function of oil pipe.
The beneficial effects of the utility model are: owing to adopted a cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies, and wherein the flashboard front end semicircular cavities inwall of a cover half-closed type flashboard assembly is provided with shaggy tooth, thereby has full envelope, half oil sealing well and the fixing function of oil pipe; And compact conformation is convenient to operation, has improved operating efficiency effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1 is that housing, 2 is that main channel, 3 is that full-enclosed type flashboard assembly, 4 is that half-closed type flashboard assembly, 5 is that half-closed type flashboard assembly, 5-1 are that half envelope flashboard, 5-2 are shaggy tooth.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
The utility model comprises: housing 1, full-enclosed type flashboard assembly 3 and half-closed type flashboard assembly 4,5; One cover full-enclosed type flashboard assembly 3 and two cover half-closed type flashboard assemblies 4,5 are the three layers of distribution in upper, middle and lower and are installed in the main channel 2 of housing 1, and the front end semicircular cavities inwall that partly seals flashboard 5-1 that wherein is in the half-closed type flashboard assembly 5 of lower floor is provided with shaggy tooth 5-2.
During use, at first the utility model is installed on the well head of oil well.When needs during with the oil well complete closed, the both sides blind rams of full-enclosed type flashboard assembly 3 is moved to 2 centers, main channel, blind rams until both sides contacts, and applies the preceding sealing crimp that a point load makes the blind rams front end again, thereby realizes complete closed.When oil pipe is arranged in the oil well, when needing the oil sealing well, the flashboard that partly seals that then promotes partly to seal flashboard assembly 4 moves to 2 centers, main channel, partly sealing flashboard until both sides contacts, apply the interior preceding sealing 3-1 crimp of semi-circular arc sky that a point load makes half envelope flashboard again, pack tightly oil pipe, thereby realize half envelope.When needs fixedly oil pipe, prevent that it is up and down during play, the flashboard 5-1 that partly seals that then promotes half-closed type flashboard assembly 5 moves to main logical tired 2 centers, partly sealing flashboard 5-1 until both sides contacts, apply the shaggy tooth 5-2 chucking oil pipe on the front end semicircular cavities inwall that a point load makes half envelope flashboard 5-1 again, thereby make oil pipe screens, fixing.
Claims (1)
1, multifunction card pipe preventer comprises housing, full-enclosed type flashboard assembly and half-closed type flashboard assembly; It is characterized in that: a cover full-enclosed type flashboard assembly and two cover half-closed type flashboard assemblies are the upper, middle and lower distribution and are installed in the housing main channel, and wherein the front end semicircular cavities inwall that partly seals flashboard of a cover half-closed type flashboard assembly is provided with shaggy tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200334816U CN201180514Y (en) | 2008-03-25 | 2008-03-25 | Multifunctional gripper pipe blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200334816U CN201180514Y (en) | 2008-03-25 | 2008-03-25 | Multifunctional gripper pipe blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180514Y true CN201180514Y (en) | 2009-01-14 |
Family
ID=40250015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200334816U Expired - Lifetime CN201180514Y (en) | 2008-03-25 | 2008-03-25 | Multifunctional gripper pipe blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180514Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400656A (en) * | 2011-10-31 | 2012-04-04 | 盐城市大冈石油工具厂有限责任公司 | Dual-seal connected blowout preventer |
| CN107355205A (en) * | 2017-08-08 | 2017-11-17 | 广州海洋地质调查局 | A kind of hydraulic slotted liner technique method of semisubmersible drilling platform or drill ship |
| CN108412447A (en) * | 2018-03-02 | 2018-08-17 | 中国石油集团川庆钻探工程有限公司 | Wellhead device for emergency of out-of-control blowout of oil and gas well |
| CN112483036A (en) * | 2020-12-14 | 2021-03-12 | 盐城市大冈石油工具厂有限责任公司 | Barrier-free circulating operation blowout preventer |
-
2008
- 2008-03-25 CN CNU2008200334816U patent/CN201180514Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400656A (en) * | 2011-10-31 | 2012-04-04 | 盐城市大冈石油工具厂有限责任公司 | Dual-seal connected blowout preventer |
| CN107355205A (en) * | 2017-08-08 | 2017-11-17 | 广州海洋地质调查局 | A kind of hydraulic slotted liner technique method of semisubmersible drilling platform or drill ship |
| CN108412447A (en) * | 2018-03-02 | 2018-08-17 | 中国石油集团川庆钻探工程有限公司 | Wellhead device for emergency of out-of-control blowout of oil and gas well |
| CN112483036A (en) * | 2020-12-14 | 2021-03-12 | 盐城市大冈石油工具厂有限责任公司 | Barrier-free circulating operation blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |
|
| CX01 | Expiry of patent term |