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Method and device for rod tube centering and guiding and lifting ring disconnecting and hanging in mechanical well repair operation

A technology of working rods and lifting rings, which is applied in the direction of drill pipes, drill pipes, casings, etc., can solve the problems of small righting distance, dense auxiliary devices, and large investment, and achieve the effect of small investment, convenient operation, and large righting distance

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the manipulator, hydraulic cylinder, wellhead and the oil pipe to be righted must be installed on the same line, and there are disadvantages such as small straightening distance, little space for the swimming system, dense auxiliary devices above the wellhead, and large investment.

Method used

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  • Method and device for rod tube centering and guiding and lifting ring disconnecting and hanging in mechanical well repair operation

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Embodiment Construction

[0018] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

[0019] according to figure 1 As shown, the lower end of the support column 3 of the rod tube straightening guides the hanging ring device to be fixed on the wellhead platform 6 through the lower rotating device 5, and the curved arm 2 is installed on the supporting column 3 through the upper rotating device 4, and the lifting ring and the righting rod tube are removed and hung. The mechanism 1 is installed on the crank arm 2 . It can replace human beings on the wellhead platform to complete the guiding and straightening rods and pipes, reach from the wellhead to the top of the wellhead and align the thread or make the rods and pipes reach the wellsite from the wellhead, and can replace people to complete the work of ...

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Abstract

The invention discloses a method and device for rod tube centering and guiding and lifting ring disconnecting and hanging in mechanical well repair operation. The device comprises a lifting ring disconnecting and hanging and rod tube centering mechanism and a driving device used for providing rotation power for the lifting ring disconnecting and hanging and rod tube centering mechanism. The driving device is arranged on a wellhead platform and installed on one side, in linkage with a stand pipe to be lifted, of a wellhead, the driving device is perpendicular to a ligature, and the driving device itself can rotate. The device is installed on the side face, in linkage with the rod tube to be centered, of the wellhead, in the working process, a mechanical arm rotates to the ligature to perform centering and guiding, and after centering, the mechanical arm leaves from the ligature to return to the original place and wait for an instruction. The method and device are suitable for centering stand pipe of the wellhead and disconnecting and hanging a lifting ring in the mechanical operation, and it is ensured that the stand pipe smoothly runs into a well. The method and device have the advantages of being large in centering distance, sparing sufficient space for a traveling system and being small in investment, convenient to operate and the like.

Description

technical field [0001] The invention relates to a lifting ring in the mechanized operation of the petroleum industry, in particular to a method for straightening and guiding a rod and tube in mechanized workover operations to remove and hang a lifting ring; Background technique [0002] Since domestic mechanized drilling and workover are in the stage of indoor research, there are few reports on auxiliary devices for mechanized tripping and running of pipe strings. Literature search, in the master thesis of China University of Petroleum (East China) in 2006, "Research on the Control System of Automated Lifting and Lowering Pipe String Operation", related to the structural design of the righting manipulator to align the oil pipe and the wellhead during the process of lifting and lowering the tubing. The design is A manipulator is installed on the piston rod of the hydraulic cylinder, and the manipulator clamps the main oil pipe, and the oil pipe is aligned with the wellhead th...

Claims

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Application Information

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IPC IPC(8): E21B19/24E21B19/02
Inventor 王民轩魏斌李希亮高广启罗文莉宋辉辉付增金鑫张方圆岳振玉郝丽伟
Owner CHINA PETROLEUM & CHEM CORP
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