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Blowout prevention on-off connector

A disconnecting and blowout prevention technology, which is applied in wellbore/well parts, earthwork drilling, sealing/isolation, etc., can solve environmental pollution and other problems, and achieve the effect of preventing falling and avoiding ground and water source pollution

Inactive Publication Date: 2009-04-22
梁伟成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, during workover operations in oil fields, after the sucker rod is disengaged, the crude oil in the pumping well will spray out of the wellhead because there is no sealing device at the wellhead, causing environmental pollution. Therefore, it is urgent to provide a device to solve this problem

Method used

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  • Blowout prevention on-off connector

Examples

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Embodiment Construction

[0011] See Figures 1-4, the specific structure is as follows: the two ends of the inner circle of the jacket 2 are respectively provided with a positioning boss and a sealing boss, and the end surface of the sealing boss is a tapered surface. Assemble the main body 1 in the casing 2, the main body 1 is connected to the central rod 10 of the disconnecting device, the nut 6 and the sealing lock sleeve 8 are assembled on the central rod 10 of the disconnecting device, and the sealing ring 9 is assembled between the sealing locking sleeve 8 and the central rod 10 of the disconnecting device . A large compression spring 7 is assembled between the nut 6 and the sealing lock sleeve 8 . The sealing lock sleeve 8 is provided with a sealing tapered surface in contact with the sealing boss at one end of the jacket 2 . 4-6 fan-shaped clamping blocks 3 are assembled on the outer periphery of the main body 1, and sheaths 5 are arranged on the outer peripheries of both ends of each fan-shap...

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Abstract

The invention relates to a blowout preventing uncoupling device, which comprises a main body, an outer sleeve, an uncoupling device center rod and large compression springs, and is characterized in that an inner circle of the outer sleeve is provided with a hermetical lug boss the end face of which is a conical surface; a plurality of clamping blocks are arranged on the periphery of the main body; the compression springs are arranged at the bottoms of various clamping blocks; and end faces of the clamping blocks which contact a positioning lug boss of the outer sleeve are conical surfaces. The blowout preventing uncoupling device has the advantages of being capable of effectively preventing blowout of crude oil from a wellhead under the condition of well workover operation and avoiding floor pollution and waterhead pollution.

Description

technical field [0001] The invention belongs to a tool for oil field workover, in particular to a novel blowout prevention disconnecting device. Background technique [0002] At present, during workover operations in oilfields, after the sucker rod is disengaged, the crude oil in the pumping well will spray out of the wellhead because there is no sealing device at the wellhead, causing environmental pollution. Therefore, it is urgent to provide a device to solve this problem. Contents of the invention [0003] The purpose of the present invention is to provide a novel blowout prevention disconnecting device, which can effectively prevent crude oil from blowing out of the wellhead during workover operations, and avoid ground and water source pollution. [0004] The purpose of the present invention is achieved through the following technical solutions: it includes a main body, an outer cover, a central rod of a disconnecting device, a sealing lock sleeve, and a large compres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03
Inventor 梁伟成
Owner 梁伟成
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