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Novel front-opening power slip

A technology of power slips and front opening, which is applied in drilling equipment, earth-moving drilling, drill pipe, etc., can solve the problem of inability to complete the drill string clamping operation, and achieve a simple and reliable structure, avoid contamination, and reduce friction. Effect

Active Publication Date: 2021-10-26
LANZHOU LS PETROLEUM EQUIP ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is used in continuous tripping drilling equipment, due to the influence of the lower drilling string, the traditional slips cannot enter the centerline of the wellbore, and cannot complete the clamping operation of the drill string

Method used

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Effect test

Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] Such as figure 1 , figure 2 As shown, a new type of front opening power slip includes a slip seat 1 with an open front end. Left ear seats 9 and right ear seats 12 are respectively arranged on both sides of the front opening of the slip seat 1. The left ear seat 9 and the left side The rear end of the door 10 is connected by the left rotating shaft 8, the rear end of the right ear seat 12 and the right door 13 is connected by the right rotating shaft 14, a split type bushing 16 is installed in the middle of the slip seat 1, and the split type bushing 16 The top of the slip seat 1 and the upper surface of the slip seat 1 are equipped with a split cover plate 15 fixed by bolts; the rear part of the upper surface of the slip seat 1 is welded with a slip lifting support 3, and the slip lifting support 3 is connected to the lifting device. The slip bodies 7 are ...

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Abstract

The invention discloses a novel front-opening power slip. The novel front-opening power slip comprises a slip seat with an opening in the front end, wherein a left lug seat and a right lug seat are arranged; the left lug seat is connected with the rear end of a left side door through a left rotating shaft; the right lug seat is connected with the rear end of a right side door through a right rotating shaft; a split type bushing is mounted in the middle of the slip seat; a split type cover plate is mounted at the top end of the split type bushing; a slip lifting support is welded at the rear part of the upper surface of the slip seat and connected with a slip body together with a lifting device; and a rear cover is mounted at the rear part of the slip seat. During use, after the slip body is lifted to a certain height, the right side door and the left side door can be opened under the action of a power device, and a left slip split body and a right slip split body are opened by a certain angle under the action of a torsion spring, so that a drill column can enter and exit from the bushing and an inner cavity of the slip body from the front opening, the timeliness of dynamic treatment of a pipe is high, and the novel front-opening power slip is applicable to treatment of the pipe for continuous tripping.

Description

technical field [0001] The invention relates to the technical field of oil drilling equipment, in particular to a novel front opening power slip. Background technique [0002] The drilling and tripping operation process of conventional drilling and production equipment is to run the drill string into or out of the wellbore in the form of a single or vertical root. The operation process is intermittent and discontinuous, and there are disadvantages such as long drilling cycle time and high operation cost. Continuous tripping drilling technology is a new drilling technology newly proposed in recent years. It can overcome the disadvantages of conventional tripping operations, realize continuous and rapid tripping operations of drilling tools, and greatly improve the drilling efficiency of drill strings. Improve operating efficiency and reduce operating costs. [0003] The emergence of continuous tripping drilling technology puts forward new requirements for slips and other pip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/10
CPCE21B19/10Y02E10/72
Inventor 姚金昌李胜忠徐钰佳张庆斌吴爱萍豆乔董芳杞魏双会孙占广张建任得勇
Owner LANZHOU LS PETROLEUM EQUIP ENG CO LTD
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