A self-balancing continuous unscrewing and unloading drill pipe threading device

A self-balancing, drill pipe technology, applied in drill pipe, drill pipe, earth-moving drilling, etc., can solve the problem that the unscrewing tool cannot achieve smooth unscrewing, and achieve the effect of great significance and wide application range.

Active Publication Date: 2022-05-13
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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  • A self-balancing continuous unscrewing and unloading drill pipe threading device
  • A self-balancing continuous unscrewing and unloading drill pipe threading device
  • A self-balancing continuous unscrewing and unloading drill pipe threading 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

A self-balancing continuous unscrewing drill pipe threading device, relating to the technical field of drilling engineering equipment, including cantilever support, upper left unscrewing assembly, upper right unscrewing assembly, lower left unscrewing assembly and lower right unscrewing assembly, upper left unscrewing assembly The assembly, the upper right unscrew assembly, the lower left unscrew assembly and the lower right unscrew assembly are slidably connected on the cantilever support, driven by the opening and closing thrust motor The assembly realizes the clamping or loosening action. The invention can realize automatic opening and closing of the drill pipe joint clamping, self-balancing continuous rotation unscrewing and automatic unloading of the drill pipe when drilling and tripping the drill pipe using the axial deep groove wear-resistant joint. Actions such as clamping and returning are an automatic device that can realize unscrewing and unloading of drill pipes only through rotary torque without large clamping force.

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 Patents(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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