CN2551758Y - Annular blowout preventer for well drilling - Google Patents
Annular blowout preventer for well drilling Download PDFInfo
- Publication number
- CN2551758Y CN2551758Y CN 02232890 CN02232890U CN2551758Y CN 2551758 Y CN2551758 Y CN 2551758Y CN 02232890 CN02232890 CN 02232890 CN 02232890 U CN02232890 U CN 02232890U CN 2551758 Y CN2551758 Y CN 2551758Y
- Authority
- CN
- China
- Prior art keywords
- housing
- piston
- top cover
- glue core
- dust ring
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 15
- 239000003292 glue Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract 2
- 241000237858 Gastropoda Species 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 235000017771 Acacia greggii Nutrition 0.000 description 3
- 241000372389 Anigozanthos humilis Species 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Earth Drilling (AREA)
Abstract
An annular blowout preventer for well drilling relates to oil well drilling control equipment, and belongs to an oil well drilling accessory device. The main problem of solving is, current annular preventer seals unreliable, dismouting inconvenient when changing the part. The annular blowout preventer mainly comprises a shell, a piston, a rubber core, a supporting cylinder and a dust ring, wherein the piston, the rubber core, the supporting cylinder and the dust ring are arranged in the shell. The blowout preventer is used in oil drilling engineering.
Description
Technical field
The utility model relates to a kind of oil drilling control appliance, belongs to the oil drilling fixture.
Background technology
If in drilling process when running into high-pressure oil-gas layer, just well kick or gas blowout accident may take place.Former because of not being equipped with preventer or repeatedly blowout out of control accident taking place because of preventer loses efficacy, bring about great losses, therefore in the oil drilling engineering, must be equipped with preventer, when needs, can in time seal well head, to guarantee the safety of drill-well operation personnel and equipment.At present at the preventer that uses, still have some imperfection parts, as seal unreliablely, top cover is damaged easily, and the sealing position is often leaked; Top cover and housing directly connect with king-bolt, need bigger power just can unclamp or tighten these bolts when dismounting or installation, not only time-consuming but also require great effort, it is very inconvenient that top cover damages the back disassembling, assembling and replacing, when operating pressure was higher, the structure of this preventer also was difficult to satisfy load bearing requirements.
The utility model content
The purpose of this utility model provide a kind of seal reliable, can quickly dismantled, drilling well annular preventer easy to use.
Technical solution of the present utility model is to realize like this, a kind of drilling well annular preventer, constitute by housing and the piston, glue core, support tube and the dust ring that are installed in the housing, top cover is installed in the upper end of housing, by briquetting and screw they are bound up, its special character is, top cover is fixed on the housing by rest shoe, and rest shoe is installed in the groove of housing by pawl valve snail nail.
In above-mentioned technical solution, its special character is, between top cover and glue core wear strip is installed.
In above-mentioned technical solution, its special character is that also the lower end of glue core is the type conical bench shape, and the glue core is installed in support tube and piston top, and support tube is screwed on housing, has measured hole on top cover.
In above-mentioned technical solution, its special character also is, between housing and piston dust ring is installed, and sealing ring is housed respectively between top cover, dust ring and piston, between housing and the piston sealing ring is housed.
The beneficial effects of the utility model are, fix by rest shoe between (1) top cover and the housing, and cap lock is fixed on the housing, can make the rest shoe locking or throw off by chuck screw and interior bolt thereof, can realize the dismounting of top cover convenient and strength-savingly.(2) between top cover and glue core, have wear strip, can prevent that top cover from damaging, after wear strip damages, only need to change the little wear strip of volume, do not need to change the very big top cover of volume.(3) lower end of glue core is the type conical bench shape, under the promotion of piston, crimp takes place easily, and the spill-out of distortion back fluid sealant is little, and the damaged condition of glue core is just little.Can keep reliable sealing effect.(4) on top cover, have measured hole, can pass through this hole measurement position of piston easily,, further calculate the residual life of plastic emitting core perhaps from the visual observation position of piston.
Description of drawings
Accompanying drawing is the structural representation that partly cuts open of the present utility model.
The specific embodiment
When high-pressure and hydraulic oil by under import and export 19 and enter in the housing 9, high-pressure and hydraulic oil promotes piston 23 and moves upward, glue core 1 is under the impetus of the piston 23 upper end stairstepping conical surfaces, laterally push glue core 1, glue core 1 is shunk to the center, up to drilling rod tightly being embraced (when in the preventer drilling rod being arranged) or being utilized glue core 1 directly to seal the central through hole of preventer (when in the preventer drilling rod being arranged), so just realized plugging action.When high-pressure and hydraulic oil enters in the housing 9 by last import and export 15, high-pressure and hydraulic oil promotes piston 23 and moves downward, and glue core 1 opens by the elasticity of self, and falls after rise downwards, realizes opening the process of glue core.Have measured hole 5 on top cover 4 tops, there is sealing thread in the aperture, and measurer can arrive the upper end of piston 23 by this hole, can externally measure or observe position of piston, uses easily.
Claims (5)
1. drilling well annular preventer, by housing (9) and be installed in piston (23), glue core (1), support tube (25) and dust ring (17) formation in the housing (9), top cover (4) is installed in the upper end of housing (9), by briquetting (8) and screw (7) they are bound up, it is characterized in that, top cover (4) by and rest shoe (10) be fixed on the housing (9), rest shoe (10) is installed in the groove of housing (9) by bolt (14).
2. a kind of drilling well annular preventer according to claim 1 is characterized in that, between top cover (4) and glue core (1) wear strip (2) is installed.
3. a kind of drilling well annular preventer according to claim 1 and 2 is characterized in that,
1. glue core (1) lower end is the type conical bench shape, and glue core (1) is installed in support tube (25) and piston (23) top, and support tube (25) is fixed on the housing (9) with screw (24);
2. on top cover (4), has measured hole (5).
4. a kind of drilling well annular preventer according to claim 1 and 2, it is characterized in that, between housing (9) and piston (23), dust ring (17) is installed, sealing ring (27,18) is housed respectively between top cover (4), dust ring (17) and piston (23), between housing (9) and the piston (23) sealing ring (16) is housed.
5. a kind of drilling well annular preventer according to claim 3, it is characterized in that, between housing (9) and piston (23), dust ring (17) is installed, sealing ring (27,18) is housed respectively between top cover (4), dust ring (17) and piston (23), between housing (9) and the piston (23) sealing ring (16) is housed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02232890 CN2551758Y (en) | 2002-05-23 | 2002-05-23 | Annular blowout preventer for well drilling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02232890 CN2551758Y (en) | 2002-05-23 | 2002-05-23 | Annular blowout preventer for well drilling |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2551758Y true CN2551758Y (en) | 2003-05-21 |
Family
ID=33708166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 02232890 Expired - Lifetime CN2551758Y (en) | 2002-05-23 | 2002-05-23 | Annular blowout preventer for well drilling |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2551758Y (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103850662A (en) * | 2014-02-27 | 2014-06-11 | 中国海洋石油总公司 | Underwater annular preventer |
CN104653142A (en) * | 2013-11-22 | 2015-05-27 | Zp因特莱茨有限责任公司 | Spherical-annular blowout preventer having a plurality of pistons |
US9109421B2 (en) | 2008-12-18 | 2015-08-18 | Hydril USA Distribution LLC | Deformation resistant opening chamber head and method |
CN106065769A (en) * | 2016-08-12 | 2016-11-02 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Drilling and repairing well annular preventer |
CN110080711A (en) * | 2019-05-27 | 2019-08-02 | 河北博路天宝石油设备制造有限公司 | A kind of ram preventer with combined type side door |
CN110637144A (en) * | 2017-05-17 | 2019-12-31 | 动压控制有限责任公司 | Rotary drive actuator for annular wellbore pressure control device |
CN110821437A (en) * | 2019-11-21 | 2020-02-21 | 青岛理工大学 | Double-cylinder double-ring plug type liquid-drive annular blowout prevention shaft pushing device |
CN112647886A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Annular blowout preventer for oil field well mouth |
CN113137203A (en) * | 2021-05-27 | 2021-07-20 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
CN113250640A (en) * | 2021-05-25 | 2021-08-13 | 吴佳毅 | Annular blowout preventer |
-
2002
- 2002-05-23 CN CN 02232890 patent/CN2551758Y/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9109421B2 (en) | 2008-12-18 | 2015-08-18 | Hydril USA Distribution LLC | Deformation resistant opening chamber head and method |
CN104653142A (en) * | 2013-11-22 | 2015-05-27 | Zp因特莱茨有限责任公司 | Spherical-annular blowout preventer having a plurality of pistons |
CN103850662A (en) * | 2014-02-27 | 2014-06-11 | 中国海洋石油总公司 | Underwater annular preventer |
CN103850662B (en) * | 2014-02-27 | 2016-04-27 | 中国海洋石油总公司 | One is annular preventer under water |
CN106065769A (en) * | 2016-08-12 | 2016-11-02 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Drilling and repairing well annular preventer |
CN110637144A (en) * | 2017-05-17 | 2019-12-31 | 动压控制有限责任公司 | Rotary drive actuator for annular wellbore pressure control device |
CN110080711A (en) * | 2019-05-27 | 2019-08-02 | 河北博路天宝石油设备制造有限公司 | A kind of ram preventer with combined type side door |
CN110821437A (en) * | 2019-11-21 | 2020-02-21 | 青岛理工大学 | Double-cylinder double-ring plug type liquid-drive annular blowout prevention shaft pushing device |
CN112647886A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Annular blowout preventer for oil field well mouth |
CN112647886B (en) * | 2020-12-31 | 2022-07-05 | 江苏信得石油机械股份有限公司 | Annular blowout preventer for oil field well mouth |
CN113250640A (en) * | 2021-05-25 | 2021-08-13 | 吴佳毅 | Annular blowout preventer |
CN113137203A (en) * | 2021-05-27 | 2021-07-20 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
CN113137203B (en) * | 2021-05-27 | 2022-02-11 | 青海九零六工程勘察设计院 | Well head blowout prevention protection structure for underground water drilling process |
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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 | ||
CX01 | Expiry of patent term |
Expiration termination date: 20120523 Granted publication date: 20030521 |