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Auxiliary tripping pipe equipment and operation method suitable for remedial work with pressure

An equipment and operation technology, applied in drilling equipment, drill pipe, casing and other directions, can solve problems such as hidden safety hazards and low operation efficiency, achieve the effect of compact structure, improve the degree of automation, and eliminate the problem of idle travel

Pending Publication Date: 2018-05-29
大连惠德自动化设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of low operating efficiency and hidden safety hazards in the operation process of traditional auxiliary pipe tripping equipment, the present invention provides an auxiliary pipe tripping equipment and operation method suitable for hot workover operations

Method used

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  • Auxiliary tripping pipe equipment and operation method suitable for remedial work with pressure
  • Auxiliary tripping pipe equipment and operation method suitable for remedial work with pressure

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Embodiment Construction

[0038] The specific implementation of the present invention will be illustrated below in conjunction with the accompanying drawings, but it should not be understood that the scope of the above-mentioned subject of the present invention is limited to the following examples, and all technologies realized based on the contents of the present invention belong to the scope of the present invention.

[0039] An auxiliary pipe tripping device suitable for workover operations under pressure. The auxiliary tripping pipe device is installed on the blowout blowout group under pressure through the wellhead installation flange, including oil pipe 1, upper and lower pipe string collar detectors 2, 9. Upper and lower end plates 11, 10, upper and lower pipe string clamping devices 3, 6, upper and lower pipe string oil cylinders 4, 8, lifting mechanism 7, support column 5.

[0040] The upper and lower end plates 11 and 10 have the same structure and are square plates with a through hole in the ...

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Abstract

The invention belongs to the technical field of oil and natural gas drilling equipment, and relates to auxiliary tripping pipe equipment and an operation method suitable for remedial work with pressure. Pipe column coupling detection devices are respectively arranged at the outer side of equipment end plates, tripping pipe column oil cylinders are connected with and drive pipe column clamping devices, the pipe column clamping devices are fixed on an elevator mechanism of a supporting stand column, the equipment is installed on an ejector set with pressure through a wellhead mounting flange, ahydraulic control cabinet is connected with the pipe column clamping devices and the tripping pipe column oil cylinders, an electrical control cabinet is connected with the oil column coupling detection devices, and the degree of automation in the process of tripping operation is improved; an upper pipe column clamping device, an upper tripping pipe column oil cylinder, a lower pipe column clamping device and a lower tripping pipe column oil cylinder adopt a form of cross-symmetric reverse installation. The auxiliary tripping pipe equipment is based on a remedial work mode with pressure, the problem of the idle stroke in the operation process of traditional auxiliary tripping pipe equipment can be eliminated, and the safety problem can also be eliminated that a slip is only clamped on theedge of a coupling, causing the underground high pressure to push out an oil pipe.

Description

technical field [0001] The invention belongs to the technical field of oil and natural gas drilling and production equipment, and relates to an auxiliary lifting and lowering pipe equipment and operation method suitable for pressure well workover operations. Background technique [0002] In the process of developing oil and gas fields, such as formation pressure changes, downhole accidents, changes in production methods, process technology, adjustment of production formations, etc., it is often necessary to carry out workover operations. Oil field workover operation refers to running or replacing casings in oil and gas wells or water wells in order to relieve the failure of oil and gas wells, restore production capacity, and transform oil layers to improve the production capacity of oil and gas wells in order to obtain greater economic benefits. The operation process of frequent and repeated maintenance and repair of production strings. [0003] Oil and water well overhaul ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/00E21B19/14E21B19/18
CPCE21B19/00E21B19/14E21B19/18
Inventor 徐晓桐雷言河邵信龙
Owner 大连惠德自动化设备有限公司
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