Turnover slip

A flip-up, slip technology, used in drilling equipment, earth-moving drilling, drill pipe, etc., can solve the problems of outer circle wear of the pipe string, and achieve the effect of reducing the number, expanding the scope of application and improving the safety factor.

Active Publication Date: 2014-07-30
SICHUAN HONGHUA PETROLEUM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The further object of the present invention is also to provide a reversible slip that can solve the problem of outer circle wear of the pipe string

Method used

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Examples

Experimental program
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Embodiment 1

[0041] Such as Figure 1 to Figure 4 As shown, a flip-type slip includes a slip seat 1, and a connecting shaft 2 is hinged on the slip seat 1. The connecting shaft 2 includes a first connecting shaft 201 and a second connecting shaft 202; the first connecting shaft 201 and the second connecting shaft The two connecting shafts 202 are respectively located on both sides of the slip seat 1 .

[0042] A rocker arm 3 is installed on the connecting shaft 2 . The rocker arm 3 comprises a first rocker arm 301 and a second rocker arm 302. One end of the first rocker arm 301 is fixed on the first connecting shaft 201, and the other end of the first rocker arm 301 is a movable end. The first rocker arm 301 can be As the first connecting shaft 201 rotates around the axis of the first connecting shaft 201; one end of the second rocking arm 302 is fixed on the second connecting shaft 202, the other end of the second rocking arm 302 is a movable end, and the second rocking arm 302 can rota...

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Abstract

The invention discloses a turnover slip and belongs to the technical field of auxiliary petroleum drilling equipment. The turnover slip comprises a slip seat, wherein a connecting shaft and a driving device are mounted on the slip seat; a rocking arm is mounted on the connecting shaft; one end of the rocking arm is fixed on the connecting shaft, and the other end of the rocking arm is hinged to a slip body; the driving device drives the rocking arm to rotate around the central axis of the connecting shaft and drives the slip body to lift and turn over; a liner is mounted on the slip body and is detachably mounted on the inner side of the slip body; a positioning device is arranged on the slip body and is used for limiting the movement of the liner relative to the slip body. According to the turnover slip, the liner is detachably mounted on the inner side of the slip body; by replacing different types of liners, the turnover slip can be applied to pipe columns with different sizes, the application range of the turnover slip is expanded, and the drilling construction efficiency is improved.

Description

technical field [0001] The invention relates to a reversible slip, which belongs to the technical field of petroleum drilling supporting equipment. Background technique [0002] Slips are tools used in oil drilling to stick and hang drill strings in wells. At present, tripping and casing operations mainly use double-elevator switching or single-elevator combined with portable slips. Both the double-elevator method and the portable slips have problems such as high work intensity and low work efficiency. Some well teams are equipped with some power slips, but the clamping range is generally narrow, and the slip body needs to be replaced as a whole when adapting to different pipe diameters, which is troublesome. [0003] The Chinese patent with the publication number CN201857908U discloses a "pneumatic slip for inclined well drilling rig", which includes a slip main body, the inner hole of the slip main body is tapered, and a slip assembly is arranged in the inner hole of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/10
Inventor 夏宏克姚宇翔罗锐单代伟
Owner SICHUAN HONGHUA PETROLEUM EQUIP
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