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Blowout preventer

A blowout preventer and casing technology, which is applied in the field of anti-leakage equipment, can solve the problems of inconvenient operation and high sealing requirements at the connection of the air pump, and achieve the effects of easy operation, prevention of blowout accidents, and increased sealing effect

Active Publication Date: 2019-01-15
廊坊市荣亿石油开采技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The blowout preventer plays a vital role in the operation, so the blowout preventer needs to be easy to operate and have good sealing effect. The existing blowout preventer includes hydraulic blowout preventer and ring blowout preventer. When using Both need an external air pump, and use external power to drive the blowout preventer to play a sealing role. The equipment cannot complete the work alone, and the operation is not convenient enough, and the air pump connection has high requirements for sealing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 1-7As shown, a blowout preventer includes a housing 1, a fixing plate 15 arranged on both sides of the housing 1 and a first equipment box 2 arranged above the fixing plate 15, the first equipment box 2 There are two groups, which are respectively fixed on both sides of the casing 1. The fixing plate 15 is used to fix the blowout preventer on the wellhead so that the blowout preventer can seal the oil well; the casing 1 is provided with a first channel hole 11, the oil delivery pipe can be inserted into the oil well from the first through hole to carry out oil pumping work; the first equipment box 2 is provided with a sealing assembly and a driving member for driving the sealing assembly to move; the first equipment The bottom of the box 2 is provided with a support seat 16; the support seat 16 is set as a triangular structure, and the first equipment box is fixed on the side wall of the housing by using the principle of triangular stability; the sealing as...

Embodiment 2

[0041] like Figure 8-10 As shown, the difference between this embodiment and Embodiment 1 is that: the fixing plate 15 is provided with a fixing device, and the fixing device is detachably connected with the fixing plate 15; the blowout preventer is fixed by the fixing device, increasing The fixing effect of the blowout preventer enables the blowout preventer to be fixed more stably at the wellhead and has a good blowout prevention effect; through the detachable connection between the fixing device and the fixing plate, the fixing device can be easily repaired and maintained, and the fixing time can be extended. The service life of the device.

[0042] Described fixing device comprises the second equipment box 4 that is located on described fixed plate 15, is located at the hydraulic cylinder 41 in described second equipment box 4, is located at the rotary motor 44 on the piston rod of described hydraulic cylinder 41 and The positioning drill bit 45 arranged on the output sh...

Embodiment 3

[0046] like Figure 11-12 As shown, the difference between this embodiment and Embodiment 1 is that a fixing assembly is also provided on the inner wall of the first through hole 11; the oil delivery pipe inserted into the blowout preventer is fixed by the fixing assembly, so as to prevent the oil delivery pipe from The vibration will affect the connection effect between the oil pipeline and the blowout preventer, improve the sealing performance of the blowout preventer, and avoid the occurrence of blowout accidents.

[0047] The fixing assembly includes a second mounting plate 5 disposed on the inner wall of the first through hole 11 , a connecting spring 54 disposed on the second mounting plate 5 , and a fastener fastened to the connecting spring 54 . Plate 51; two sets of fixing components are respectively installed on both sides of the inner wall of the first through hole. After the oil delivery pipe is inserted into the first through hole, the oil delivery pipe is placed ...

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Abstract

The present invention discloses a blowout preventer. The blowout preventer comprises a housing, fixed plates arranged at two sides of the housing and first device boxes arranged at the upper portionsof the fixed plates, the housing is internally provided with a first through hole, the first device boxes are internally provided with seal modules and drive parts configured to drive movement of theseal modules, the bottom portions of the first device boxes are provided with support bases; each seal module comprises one seal block, one connection rod fixedly connected with the seal block and onefirst push plate arranged at one end of the first connection rod; the housing is internally provided with a first movable cavity, the first connection rod penetrates the internal portion of the firstmovable cavity, and the seal blocks are arranged in the first through hole; and the first movable cavity is internally provided with a leakage-proof module. The drive parts in the device cavity drivethe seal modules to form a seal effect on the first through hole, the seal work of the blowout preventer can be completed through power itself to allow the blowout preventer to be more easily operated; and through mutual cooperation of the leakage-proof module and the seal modules, the seal effect of the blowout preventer is improved, and the generation of the blowout accident is avoided.

Description

technical field [0001] The invention belongs to the technical field of leakage prevention equipment, in particular to a blowout preventer. Background technique [0002] The blowout preventer is used to close the wellhead during oil testing, workover, and completion to prevent blowout accidents. It combines the functions of full sealing and semi-sealing into one. It is a safe sealing wellhead device commonly used in oil fields to prevent blowouts. . The blowout preventer plays a vital role in the operation, so the blowout preventer needs to be easy to operate and have good sealing effect. The existing blowout preventer includes hydraulic blowout preventer and ring blowout preventer. When using Both need an external air pump, and use external power to drive the blowout preventer to play a sealing role. The equipment cannot complete the work alone, the operation is not convenient enough, and the air pump connection has high requirements for sealing. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/06
CPCE21B33/06
Inventor 史敏敏
Owner 廊坊市荣亿石油开采技术服务有限公司
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