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Hydraulic self-locking quick-mounting blowout prevention device and method

A blowout prevention device and hydraulic technology, which is applied in earthwork drilling, wellbore/well components, sealing/isolation, etc., can solve problems such as environmental hazards, easy personal casualties, and high labor intensity, and achieve positioning and guidance Effect

Active Publication Date: 2015-11-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, dealing with blowout accidents is labor-intensive and takes a long time to rush to spray; the environment is extremely dangerous and personal casualties are prone to occur
[0004] There is no relatively mature quick installation blowout preventer in China

Method used

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  • Hydraulic self-locking quick-mounting blowout prevention device and method

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Embodiment Construction

[0023] The detailed description and technical content of the present invention are described as follows in conjunction with the accompanying drawings. However, the accompanying drawings are only provided for reference and description, and are not used to limit the present invention.

[0024] Such as figure 1 As shown, the hydraulic self-locking quick installation blowout preventer includes a blowout preventer assembly 3, a central pipe 13, and a blowout pipe 4. The lower end of the blowout preventer assembly is connected to the central pipe, and a blowout pipe is branched from the central pipe , The lower end of the central pipe is connected to an upper flange 16 which is matched and corresponding to the lower flange of the wellhead. It also includes a space rotation fine-tuning control mechanism and a hydraulic automatic locking mechanism. The upper end of the blowout preventer assembly Connected to the space rotation fine-tuning control mechanism, the outer side of the central ...

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Abstract

The invention discloses a hydraulic self-locking quick-mounting blowout prevention device and method, wherein the blowout prevention device comprises a blowout preventer assembly, a central tube and a blowout prevention tube; the central tube is connected with the lower end of the blowout preventer assembly, the blowout prevention tube is branched from the central tube, and an upper flange plate is connected with the lower end of the central tube and correspondingly cooperates a wellhead lower flange plate. The blowout prevention device further comprises a space rotation fine-adjustment control mechanism and a hydraulic self-locking mechanism, wherein the space rotation fine-adjustment control mechanism is connected with the upper end of the blowout preventer assembly; the hydraulic self-locking mechanism sleeves the outer side of the central tube and hooks upwards and locks the wellhead lower flange plate, so that bolt-free quick clamping connection between the upper flange plate and the wellhead lower flange plate is achieved. According to the hydraulic self-locking quick-mounting blowout prevention device and method, no person is required to stand on a wellhead to mount a blowout preventer, and a blowout prevention device for the wellhead is quickly mounted by utilizing a mechanical manner, so as to win time for preventing blowout of an oil / gas production well.

Description

Technical field [0001] The invention relates to an oil (gas) well head blowout preventer, in particular to a hydraulic self-locking quick installation blowout preventer. Background technique [0002] In the process of oilfield development, once a blowout accident occurs, it will cause environmental pollution, major property losses, and even personal injury. From 1972 to 2010, blowouts accounted for 50% of the top 15 major accidents in the world, resulting in huge losses. Since the founding of the People’s Republic of my country, more than 1,000 blowouts have occurred in China; on December 23, 2003, a blowout occurred in Kaixian County, Chongqing. 243 people were killed by poisoning, more than 4,000 people were injured, and more than 100,000 people were relocated. The blowout caused large-scale pollution and property losses. [0003] At present, the handling of blowout accidents is labor intensive and takes a long time to rush to blowout; the environment is extremely dangerous and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/06
Inventor 王民轩杜丙国张雷朱泽军马珍福周娜金鑫杜玮暄孙衍东张俊清肖萍王峰高综启
Owner CHINA PETROLEUM & CHEM CORP
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