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High efficiency chip removing spiral drill pipe

A technology of auger pipe and drill pipe, applied in drill pipe, drill pipe, drilling equipment, etc., can solve the problems of low strength of drill pipe, low chip removal efficiency, easy damage, etc., to reduce drilling resistance and high work efficiency , The effect of good verticality of the hole

Inactive Publication Date: 2019-09-13
CCTEG CHINA COAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-efficiency chip-removal helical drill pipe which solves the problem of low strength, easy damage and low chip removal efficiency of existing drill pipes.

Method used

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  • High efficiency chip removing spiral drill pipe

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Embodiment Construction

[0018] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0019] The invention discloses a high-efficiency chip removal helical drill pipe, such as figure 1 As shown, it includes a drill pipe body 1 and a helical blade 2, wherein the drill pipe body 1 is a hollow rod-shaped structure with a regular polygonal cross section, and the helical blade 2 is configured on the outer surface of the drill pipe body 1 and along the drill pipe body. 1 extends helically in the length direction. The pitch of the helical blade 2 is L, L=70mm, and a slot 4 is opened at the end of the drill pipe body 1 away from the drilling machine. The bending resistance of the drill pipe body 1 is better than that of the seamless steel pipe, and has the advantage of good ve...

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Abstract

The invention discloses a high efficiency chip removing spiral drill pipe, which comprises a hollow drill pipe body. The cross section of the drill pipe body is in a regular polygonal shape, a spiralblade extending spirally in the longitudinal direction of the drill pipe body is formed on the outer surface of the drill pipe body,the pitch of the spiral blade is 70 mm, and an inserting groove is opened at the end part of one end,away from a drilling rig, of the drill pipe body. According to the high efficiency chip removing spiral drill pipe,the problems that in the prior art the drill pipe islow in strength, easy to damage, and low in chip removal efficiency are solved, and the high efficiency chip removing spiral drill pipe is suitable for the technical field of anti-torque and chip removal of the spiral drill pipe.

Description

technical field [0001] The invention belongs to the technical field of auger drill rods, and in particular relates to an auger drill rod with high-efficiency chip removal. Background technique [0002] Existing auger drill pipes all use seamless pipes as the drill pipe body, and the seamless pipes have low torque resistance strength, which easily bends the helical blades on the drill pipe body. And because the diameter of the seamless pipe is relatively large, the chip removal efficiency of the drill pipe body is low when the drill pipe body is gradually drilled into the soil layer or the mine layer. Contents of the invention [0003] The invention provides a high-efficiency chip removal helical drill pipe which solves the problems of low strength, easy damage and low chip removal efficiency of existing drill pipes. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is as follows: [0005] A high-efficiency chip removal h...

Claims

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Application Information

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IPC IPC(8): E21B17/22
CPCE21B17/22
Inventor 赵善坤苏振国王彦琦邓志刚李少刚
Owner CCTEG CHINA COAL RES INST
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