Self-balancing type continuous drill rod screw thread screwing and unscrewing device

A self-balancing, drill pipe technology, applied in the direction of drill pipe, drill pipe, earthwork drilling and mining, etc., can solve the problem that unscrewing tools cannot be unscrewed smoothly, achieving significant and wide-ranging effects

Active Publication Date: 2021-01-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is no unscrewing equipment matched with this drill pipe for drilling with axial deep groove wear-resistant joints, and the purpose of unscrewing smoothly cannot be achieved with existing unscrewing tools.

Method used

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  • Self-balancing type continuous drill rod screw thread screwing and unscrewing device
  • Self-balancing type continuous drill rod screw thread screwing and unscrewing device
  • Self-balancing type continuous drill rod screw thread screwing and unscrewing device

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Embodiment Construction

[0036] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. It should be understood by those skilled in the art. The content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0037] A self-balancing continuous unscrewing drill pipe threading device, comprising a cantilever support 1, an upper left unscrewing assembly 2, an upper right unscrewing assembly 3, a lower left unscrewing assembly 4 and a lower right unscrewing assembly 5;

[0038] The upper left unscrewing assembly 2 has the same structure as the lower right unscrewing assembly 5;

[0039] The lower left unscrewing assembly 4 and the uppe...

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PUM

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Abstract

The invention relates to the technical field of drilling engineering equipment, in particular to a self-balancing type continuous drill rod screw thread screwing and unscrewing device. The device comprises a suspended wall support, an upper left screwing and unscrewing assembly, an upper right screwing and unscrewing assembly, a lower left screwing and unscrewing assembly and a lower right screwing and unscrewing assembly. The upper left screwing and unscrewing assembly, the upper right screwing and unscrewing assembly, the lower left screwing and unscrewing assembly and the lower right screwing and unscrewing assembly are in sliding connection with the suspended wall support, and an opening and closing thrust motor drives the upper left screwing and unscrewing assembly, the upper right screwing and unscrewing assembly, the lower left screwing and unscrewing assembly and the lower right screwing and unscrewing assembly to realize clamping or loosening action. When an axial deep grooveabrasion-resistant joint drill rod is used for drilling and tripping, the actions of automatically opening and closing to clamp a drill rod joint, screwing and unscrewing the drill rod in a self-balancing continuous rotary mode, automatically releasing and returning and the like can be achieved, and the automatic device does not need large clamping force and can achieve screwing and unscrewing ofthe drill rod only through rotary torsion.

Description

technical field [0001] The invention belongs to the technical field of drilling engineering equipment, and in particular relates to a self-balancing continuous unscrewing drill pipe threading device suitable for drilling and well drilling and other technical fields. Background technique [0002] At present, drill pipe is one of the necessary downhole tools for drilling technology, and its role is very important. The drill pipe structure is mainly composed of male and female joints and the main body. The function of the joint is to connect the drill pipes to form a long drill string. Usually, the outer diameter of the joint is larger than that of the main body. The joint is the main part clamped by the unscrewing tool. However, the jig of the unscrewing tool needs to generate enough friction with the outer surface of the joint through a huge clamping force to tighten or untighten the joint between the drill pipes. At this time, the jaws It has been deeply embedded into the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/16E21B19/10
CPCE21B19/161E21B19/164E21B19/10
Inventor 赵研高科李家晟张丛珊谢晓波
Owner JILIN UNIV
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