CN102704885A - Multipurpose well shutting device - Google Patents
Multipurpose well shutting device Download PDFInfo
- Publication number
- CN102704885A CN102704885A CN2012102006516A CN201210200651A CN102704885A CN 102704885 A CN102704885 A CN 102704885A CN 2012102006516 A CN2012102006516 A CN 2012102006516A CN 201210200651 A CN201210200651 A CN 201210200651A CN 102704885 A CN102704885 A CN 102704885A
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- Prior art keywords
- well
- housing
- multipurpose
- pressure
- shutting device
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Abstract
The invention discloses a multipurpose well shutting device, which comprises a shell, wherein the inside of the upper end of the shell is provided with a sealing rubber core by a locking flange, and a bypass flange is arranged on the shell. The multipurpose well shutting device has the advantages that the multipurpose well shutting device has both a sealing function and a bypass function and is provided with a pressure relieving device, well kick and well blowout can be prevented, corresponding equipment, such as manifolds, can be connected to carry out operations of various modes, and the multipurpose well shutting device does not need to be removed and can release pressure when well pressure is unstable to control the well pressure.
Description
Technical field
The present invention relates to a kind of blowout preventer.
Background technology
In oil gas well development and maintenance process; Blowout preventer is a common tool, when multiple workover treatment form replaces, because existing blowout preventer can not directly be connected with manifold; When accomplishing different workover treatment task; Often will dismantle the blowout preventer task that fulfils assignment, troublesome poeration pollutes raised platform around a well easily.
Summary of the invention
Technical problem to be solved by this invention is: a kind of multipurpose blowout preventer easy to use is provided.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: the multipurpose blowout preventer comprises: housing, be provided with packing unit in the inside, upper end of said housing through the locking flange, and housing is provided with the bypass flange.
In order to solve the problems of the technologies described above better; The further technical scheme that the present invention adopts is: on described housing, be respectively arranged with the interface channel and the discharge channel that are interconnected; Housing between interface channel and the discharge channel is provided with pressure-relief valve; Described interface channel is connected with the cavity of enclosure interior, communicates in cavity and the well, and discharge channel and well are interlinked to the outside.
Advantage of the present invention is: above-mentioned multipurpose blowout preventer, have sealing and bypass function simultaneously, and have pressure relief device again; Can prevent the well kick blowout, can connect relevant devices such as manifold again, carry out the various ways operation; Need not dismounting, can also press release pressure when unstable at well, control well is pressed.
Description of drawings
Fig. 1 is the structural representation of multipurpose blowout preventer of the present invention.
Among the figure: 1, housing, 2, the locking flange, 3, packing unit, 4, the bypass flange, 5, interface channel, 6, discharge channel, 7, pressure-relief valve, 8, cavity, 9, working string.
The specific embodiment
Describe particular content of the present invention in detail below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, the multipurpose blowout preventer comprises: housing 1, be provided with packing unit 3 in the inside, upper end of said housing 1 through locking flange 2, and housing 1 is provided with bypass flange 4.On described housing 1, be respectively arranged with the interface channel 5 and discharge channel 6 that are interconnected; Housing 1 between interface channel 5 and the discharge channel 6 is provided with pressure-relief valve 7; Described interface channel 5 is connected with housing 1 inner cavity 8; Communicate in cavity 8 and the well, discharge channel 6 is interlinked to the outside with well.
Use in the manufacture process, housing 1 can adopt alloy steel to forge, and compressive resistance is high, and security performance is good, and packing unit 3 can adopt the Elastic Steel skeleton, wear-resistant, withstand voltage, high resiliency performance that glue has.
During operate as normal, packing unit 3 is held working string 9 automatically tightly, arrives the purpose of shut-in well, presses unstable at well; Willing can damage packing unit 3 time, scalable pressure-relief valve 7 makes the cavity 8 in the housing 1 be connected with discharge channel 6 through interface channel 5; Make release pressure in the well, control well is pressed, in the time of need carrying out other workover treatment task; As long as be connected with manifold through bypass flange 4, convenient and swift, improved operating efficiency.
Claims (2)
1. multipurpose blowout preventer, comprising: housing (1) is characterized in that: innerly in the upper end of said housing (1) be provided with packing unit (3) through locking flange (2), housing (1) is provided with bypass flange (4).
2. according to the described multipurpose blowout preventer of claim 1; It is characterized in that: on described housing (1), be respectively arranged with the interface channel (5) and the discharge channel (6) that are interconnected; Housing (1) between interface channel (5) and the discharge channel (6) is provided with pressure-relief valve (7); The inner cavity (8) of described interface channel (5) and housing (1) is connected, and communicates in cavity (8) and the well, and discharge channel (6) and well are interlinked to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102006516A CN102704885A (en) | 2012-06-18 | 2012-06-18 | Multipurpose well shutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102006516A CN102704885A (en) | 2012-06-18 | 2012-06-18 | Multipurpose well shutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102704885A true CN102704885A (en) | 2012-10-03 |
Family
ID=46897912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102006516A Pending CN102704885A (en) | 2012-06-18 | 2012-06-18 | Multipurpose well shutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102704885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032044A (en) * | 2012-12-17 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multipurpose well shutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0801705A1 (en) * | 1995-01-13 | 1997-10-22 | Hydril Company | Low profile and lightweight high pressure blowout preventer |
| CN1254052A (en) * | 1999-11-24 | 2000-05-24 | 四川石油管理局 | Drilling rotary blowout preventer |
| CN2635898Y (en) * | 2003-08-08 | 2004-08-25 | 刘景三 | Self-sealing packer |
| CN200955370Y (en) * | 2006-07-12 | 2007-10-03 | 新疆石油管理局钻井工艺研究院 | Rotary control head for drilling well |
| CN202645488U (en) * | 2012-06-18 | 2013-01-02 | 盐城华亚石油机械制造有限公司 | Multipurpose well packer |
-
2012
- 2012-06-18 CN CN2012102006516A patent/CN102704885A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0801705A1 (en) * | 1995-01-13 | 1997-10-22 | Hydril Company | Low profile and lightweight high pressure blowout preventer |
| CN1254052A (en) * | 1999-11-24 | 2000-05-24 | 四川石油管理局 | Drilling rotary blowout preventer |
| CN2635898Y (en) * | 2003-08-08 | 2004-08-25 | 刘景三 | Self-sealing packer |
| CN200955370Y (en) * | 2006-07-12 | 2007-10-03 | 新疆石油管理局钻井工艺研究院 | Rotary control head for drilling well |
| CN202645488U (en) * | 2012-06-18 | 2013-01-02 | 盐城华亚石油机械制造有限公司 | Multipurpose well packer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032044A (en) * | 2012-12-17 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multipurpose well shutting machine |
| CN103032044B (en) * | 2012-12-17 | 2015-09-16 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multipurpose blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: YANCHENG HUAYA PETROLEUM MACHINERY MANUFACTURE CO. Effective date: 20130503 Owner name: CHUANQING DRILLING ENGINEERING CO., LTD. CHANGQING Free format text: FORMER OWNER: YANCHENG HUAYA PETROLEUM MACHINERY MANUFACTURE CO., LTD. Effective date: 20130503 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Su Minwen Inventor after: Du Jiayu Inventor after: Deng Xiaoqiang Inventor after: Zhang Haitao Inventor after: Chen Yehong Inventor after: Wang Guohua Inventor after: Chen Fei Inventor after: Zhu Jiaquan Inventor before: Chen Yehong Inventor before: Wang Guohua Inventor before: Chen Fei Inventor before: Zhu Jiaquan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN YEHONG WANG GUOHUA CHEN FEI ZHU JIAQUAN TO: SU MINWEN DU JIAYU DENG XIAOQIANG ZHANG HAITAO CHEN YEHONG WANG GUOHUA CHEN FEI ZHU JIAQUAN Free format text: CORRECT: ADDRESS; FROM: 224005 YANCHENG, JIANGSU PROVINCE TO: 710018 XI AN, SHAANXI PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20130503 Address after: 710018 Shaanxi city of Xi'an province is booming Park Weiyang Changqing District building 12-15 Applicant after: Chuanqing Drilling Engineering Co., Ltd. Changqing Down-hole Technic Busywork Company CNPC Applicant after: Yancheng Huaya Petroleum Machinery Manufacture Co., Ltd. Address before: The new road 224005 in Jiangsu Province, Yancheng City Salt Lake Pavilion Xinyang Economic Zone 51 Applicant before: Yancheng Huaya Petroleum Machinery Manufacture Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |