CN201318148Y - Manual double ram blowout preventer - Google Patents
Manual double ram blowout preventer Download PDFInfo
- Publication number
- CN201318148Y CN201318148Y CNU2008202325506U CN200820232550U CN201318148Y CN 201318148 Y CN201318148 Y CN 201318148Y CN U2008202325506 U CNU2008202325506 U CN U2008202325506U CN 200820232550 U CN200820232550 U CN 200820232550U CN 201318148 Y CN201318148 Y CN 201318148Y
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- CN
- China
- Prior art keywords
- well
- seal assembly
- flashboard
- manual double
- oil
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a manual double ram blowout preventer for the oil industry, which is installed on a well mouth in running and pulling an oil pipe and empty well operations, wherein when blowout premonitions or blowouts are generated, and the purpose of sealing oil lantern ring space or sealing wells is realized through operating the device manually. The device comprises a body, a lateral door, an upper flange and a lower flange, wherein an oil lantern ring space seal assembly and an empty well seal assembly are laminated and installed in the body, the upper end and the lower end of the body are respectively provided with the upper flange and the lower flange, and the upper flange and the lower flange are well mouth flanges and are convenient for connecting with the well mouth and installing other devices. The manual double ram blowout preventer for the oil industry not only can seal the oil lantern ring-shaped space, but also can seal empty wells on one well sealing device, and has simple structure, reliable sealing and strong practicability. Feed screws and shaft sleeves have self-locking performance, and after each flash-board is closed, automatic retreating of the flash-board can not be generated to affect the well sealing effect.
Description
Technical field
The utility model relates to oil well workover equipment, particularly manual double disc blowout hookup, when removing oil pipe and empty well operation, be installed in well head, when blowout omen or blowout take place when, the purpose that realizes sealing oil jacket annular space or shut-in well by this device of manually-operated.
Background technology
At present, in the light maintenance operation in oil field, remove in oil pipe or the empty well upkeep operation, without workover platform, directly at shaft mouth operation.For preventing blowout, need to prepare two kinds of blowout hookups, when in the well oil pipe being arranged, need to install the blowout hookup of sealing oil pipe and sleeve pipe annular space, in the oil pipe upper end blowout prevention valve is installed and is carried out blowout prevention; During empty well, full envelope blowout hookup then to be installed carry out blowout prevention.Sometimes just only prepare a kind of blowout hookup, only full envelope blowout hookup is installed at well head.If blowout takes place, as oil pipe is arranged in the well, then oil pipe to be hung over well head with hanger and could use full envelope blowout hookup sealing well head, realize shut-in well.Above-mentioned blowout prevention method wastes time and energy, and loses the best opportunity of closing well easily.Therefore, in the light maintenance operation, press for a kind of being directly installed on and to seal the blowout hookup that the oil jacket annular space can seal empty well again on the well head, preferably manual blowout hookup.Because in the light maintenance operation, the operating personnel closes so this blowout hookup need not power directly at shaft mouth operation, is directly closed the most direct, convenient, reliable by operation manually.
Summary of the invention
The purpose of this utility model is to provide manual double disc blowout hookup, is directly installed on the well head, by manual operation, can seal the annular space of oil pipe and sleeve pipe, can seal empty well again, and is easy to operate, safe and reliable.
The purpose of this utility model is achieved in that manual double disc blowout hookup comprises body, side door, upper flange and lower flange, with oil jacket annular space seal assembly with the empty well seal assembly is stacked is installed in the body, the upper/lower terminal of body is installed flange and lower flange respectively, upper flange and lower flange are wellhead flange, so that be connected with well head and other device is installed.
After adopting technique scheme, advantage of the present utility model is: the front end that partly seals flashboard glue core and partly seal flashboard of oil jacket annular space seal assembly is provided with axial deep-slotted chip breaker, is convenient to hold tightly oil pipe in order to seal the annular space of oil pipe and sleeve pipe; The blind rams glue core of empty well seal assembly and the front end of blind rams are the planes, after two blind rams are involutory, and the sealing empty well.Two-layer up and down, about two covers partly to seal the mobile of flashboard and blind rams be to realize by relatively moving of leading screw and axle sleeve.On same shut-in well device, oil sets annular space can be sealed and empty well can be sealed again, simple in structure, sealing is reliable, manual operation direct convenience, safe and reliable, practical.The cooperation of leading screw, axle sleeve has self-locking performance, after each flashboard cuts out, can not produce retreating voluntarily of flashboard and influences the shut-in well effect.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, manual double disc blowout hookup, comprise body 2, side door 1, upper flange 3 and lower flange 11, with oil jacket annular space seal assembly with the empty well seal assembly is stacked is installed in the body 2, the upper/lower terminal of body 2 is installed flange 3 and lower flange 11 respectively.The illustrated upper strata of this accompanying drawing is an oil jacket annular space seal assembly, and lower floor is the empty well seal assembly.Oil jacket annular space seal assembly comprises half envelope flashboard glue core 4, partly seals flashboard 5, axle sleeve 6 and leading screw 8, partly seals the front end that flashboard glue core 4 is installed in half envelope flashboard 5, and leading screw 8 cooperates with axle sleeve 6, with axle sleeve 6 with partly seal flashboard 5 and be connected.The front end that partly seals flashboard glue core 4 and partly seal flashboard 5 is provided with axial deep-slotted chip breaker, is convenient to hold tightly oil pipe, sealing oil jacket annular space.The empty well seal assembly comprises blind rams glue core 10, blind rams 9, axle sleeve 6 and leading screw 8, and blind rams glue core 10 is installed in the front end of blind rams 9, and leading screw 8 cooperates with axle sleeve 6, and axle sleeve 6 is connected with blind rams 9.The front end of blind rams glue core 10 and blind rams 9 is planes, is convenient to seal empty well.Oil jacket annular space seal assembly and empty well seal assembly symmetry are installed in the body 2.
In the light maintenance operation, the lower flange 11 of this device is connected with well head.When down-hole pressure changes and the blowout sign occurs when oil pipe is arranged in the well, rotate this leading screw that installs two upper lateral parts 8, internal thread by axle sleeve 6 is realized moving radially, and the flashboard 5 of partly sealing that promotes both sides is held oil pipe tightly to central motion, realizes the sealing of oil pipe and casing annulus.Sealing in the plug valve realization oil pipe is installed in tubing coupling then.Side door seal 7 plays the effect of sealing side door 1.When no oil pipe in the well and down-hole pressure changes when the blowout sign occurring, the blind rams 9 that the leading screw 8 that rotates both sides, this device bottom simultaneously promotes both sides moves to the center, after the blind rams glue core 10 for the treatment of both sides compresses relatively, realize the sealing of pit shaft and reach the purpose of shut-in well blowout prevention.
Claims (6)
1, manual double disc blowout hookup, comprise body (2), side door (1), upper flange (3) and lower flange (11), it is characterized in that oil jacket annular space seal assembly and the empty well seal assembly is stacked is installed in the body (2), the upper/lower terminal of body (2) is installed flange (3) and lower flange (11) respectively.
2, manual double disc blowout hookup according to claim 1, it is characterized in that oil jacket annular space seal assembly comprises half envelope flashboard glue core (4), partly seals flashboard (5), axle sleeve (6) and leading screw (8), partly seal the front end that flashboard glue core (4) is installed in half envelope flashboard (5), leading screw (8) cooperates with axle sleeve (6), with axle sleeve (6) with partly seal flashboard (5) and be connected.
3, manual double disc blowout hookup according to claim 2, the front end that it is characterized in that half envelope flashboard glue core (4) and partly seal flashboard (5) is provided with axial deep-slotted chip breaker.
4, manual double disc blowout hookup according to claim 1, it is characterized in that the empty well seal assembly comprises blind rams glue core (10), blind rams (9), axle sleeve (6) and leading screw (8), blind rams glue core (10) is installed in the front end of blind rams (9), leading screw (8) cooperates with axle sleeve (6), and axle sleeve (6) is connected with blind rams (9).
5, manual double disc blowout hookup according to claim 4 is characterized in that the front end of blind rams glue core (10) and blind rams (9) is the plane.
6, manual double disc blowout hookup according to claim 1 is characterized in that oil jacket annular space seal assembly and empty well seal assembly symmetry are installed in the body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202325506U CN201318148Y (en) | 2008-12-17 | 2008-12-17 | Manual double ram blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202325506U CN201318148Y (en) | 2008-12-17 | 2008-12-17 | Manual double ram blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318148Y true CN201318148Y (en) | 2009-09-30 |
Family
ID=41196914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202325506U Expired - Fee Related CN201318148Y (en) | 2008-12-17 | 2008-12-17 | Manual double ram blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318148Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806859A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Double-wedge-disc blowout prevention device with high practicability |
| CN104213863B (en) * | 2014-09-05 | 2016-08-03 | 胜利油田北方实业集团有限责任公司 | Water injection well oil jacket plugging device |
-
2008
- 2008-12-17 CN CNU2008202325506U patent/CN201318148Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806859A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Double-wedge-disc blowout prevention device with high practicability |
| CN104213863B (en) * | 2014-09-05 | 2016-08-03 | 胜利油田北方实业集团有限责任公司 | Water injection well oil jacket plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20111217 |