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Wellbore blowout prevention packer

A technology of plugging and wellbore, which is applied in wellbore/well parts, earthwork drilling, sealing/isolation, etc. It can solve the problems of oil outlet pipe overflow and affect environmental protection, and achieve the effect of preventing blowout accidents

Pending Publication Date: 2020-07-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the problem that there is overflow in the oil pipe during the construction of the injection well, which affects the environmental protection.

Method used

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  • Wellbore blowout prevention packer
  • Wellbore blowout prevention packer
  • Wellbore blowout prevention packer

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] see Figure 1 to Figure 8 , the present invention provides a technical solution: a wellbore blowout preventer plug, including an anchoring assembly, a plugging assembly, and an anchoring operation assembly, the lower end of the anchoring assembly is connected to the plugging assembly, and the plugging assembly The anchor operating assembly is inserted into the inner cavity of the anchoring assembly and the sealing assembly, and the sealing operating ass...

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Abstract

The invention discloses a wellbore blowout prevention packer. The wellbore blowout prevention packer comprises an anchoring assembly and a blocking assembly, and further comprises an anchor sealing operation assembly, the blocking assembly is connected to the lower end of the anchoring assembly, the anchor sealing operation assembly is inserted into the inner cavities of the anchoring assembly andthe blocking assembly, the anchor sealing operation assembly is connected with an anchoring shifting fork of the anchoring assembly through a self torque pipe in a transmission mode, and the anchor sealing operation assembly is connected with a lower joint of the blocking assembly through a self central pulling pipe. According to the wellbore blowout blocking preventer, when the wellbore operation needs to be switched, the blowout preventer does not need to be removed, the device is directly placed into the wellbore through a derrick lifting system, and the wellbore blocking is quickly achieved through the rotating, lifting, compressing and setting of a hydraulic tong; and blowout accidents are prevented.

Description

technical field [0001] The invention relates to the technical field of well control devices, in particular to a wellbore blowout preventer plug. Background technique [0002] In the oilfield oil and water well repairing construction, the wellbore is empty, when the wellhead is disassembled and replaced, the casing nipple is replaced, and the oil layer casing is replaced, the wellhead is in an uncontrolled state for 1-3 hours, especially when the casing is replaced. The uncontrolled state of the wellhead usually lasts for more than 10 hours, and there are huge safety and environmental risks such as blowouts and toxic and harmful gas leakage, as well as the risk of falling objects in the well. [0003] At present, since there is no reliable and efficient special device for wellbore plugging, using other processes to implement empty wellbore plugging is not only time-consuming, but also greatly increases the construction time and workload of the operation, and also increases th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/12E21B23/04
CPCE21B33/1216E21B23/04
Inventor 代国伟程军马宝龙李可庆付显威王振清李子芳孙阳郭胜张瑾代文君
Owner CHINA PETROLEUM & CHEM CORP
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