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Double-conical-surface drilling slip

A technology of drilling sticks and double cones, which is applied in the direction of drilling equipment, drill pipes, drilling pipes, etc., can solve the problem of high drilling slip height, achieve the effects of reducing labor intensity, simple structure, and improving drilling efficiency

Pending Publication Date: 2018-08-17
YANGZHOU CHENGCHUANG GASOLINEEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double-cone drilling slip, which solves the technical problem in the prior art that the height of the drilling slip is too high due to the single-cone design

Method used

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  • Double-conical-surface drilling slip
  • Double-conical-surface drilling slip

Examples

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Embodiment

[0029] Such as figure 1 As shown, a double-cone drilling slip provided by the present invention includes a slip seat 1, an inlay 2 and a slip body 3, a cover plate 4 is installed above the slip seat 1, and the slip seat 1 The inner wall is a conical surface, the slip body 3 is arranged inside the slip seat 1, and an inlay 2 is arranged between the slip seat 1 and the slip body 3, and an installation groove 5 is opened on the inner side of the inlay 2, The slip body 3 is set in the installation groove 5, and the slip seat 1 is used as the body, and then the slip body 3 and the inlay 2 are installed therein, and the inlay 2 and the slip body 3 are connected by a connecting piece 6 , the bottom surface of the installation groove 5 and the outer side of the slip body 3 are both inclined surfaces, so that the inlay 2 and the slip body 3 can be driven up and down by the power element, thereby forming a concession space and completing the clamping and loosening of the drilling tool ...

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Abstract

The invention discloses a double-conical-surface drilling slip. The slip comprises a slip bowl, an inlay and a slip body, a cover plate is arranged above the slip base, and the inner wall of the slipbase is a conical surface; the slip body is arranged in the slip base, the embedding body is arranged between the slip base and the slip body, a mounting groove is formed in the inner side of the embedding body, and the slip body is arranged in the mounting groove. The double-conical-surface well drilling slip solves the technical problem that in the prior art, the height of a drilling slip is high due to the single-conical-surface design.

Description

technical field [0001] The invention relates to the technical field of petroleum mechanical devices, in particular to a double-cone drilling slip. Background technique [0002] Double elevators or one elevator and one elevator are often used in oil and gas field tripping and casing running. Double-elevator operation is inefficient and labor-intensive, and there is a potential safety hazard of serious accidents caused by single-lift ring lifting; manual slips weigh nearly 100 kg, requiring workers to move back and forth with bare hands, which also affects Increased work efficiency. The existing pneumatic and hydraulic slip structures improve work efficiency, but they are all designed with a single cone surface, so the distance that the slip body moves up and down will be very large, which will affect the use of other supporting equipment. [0003] The authorized announcement number is: CN204552643U's patent discloses a disc-type pneumatic slip, including a slip seat, a slip...

Claims

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Application Information

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IPC IPC(8): E21B19/10
CPCE21B19/10
Inventor 王怯崔鸿全高大军
Owner YANGZHOU CHENGCHUANG GASOLINEEUM MACHINERY