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Diamond compact coring bit facilitating drainage in drilling process

A technology of diamond composite sheets and coring bits, which is applied in drill bits, drilling equipment, earth-moving drilling, etc., can solve the problems of small size of drainage gap, unfavorable drainage, and slow drilling speed, so as to improve the speed of footage and improve market competition. The effect of force, formation core convenience

Inactive Publication Date: 2018-02-16
QIDONG COUNTY FENGSU DRILLING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a diamond composite core bit that is beneficial to drainage during drilling. It also solves the problem that the existing diamond compact core bit has a relatively slow drilling speed.

Method used

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  • Diamond compact coring bit facilitating drainage in drilling process
  • Diamond compact coring bit facilitating drainage in drilling process
  • Diamond compact coring bit facilitating drainage in drilling process

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as Figure 1-3 As shown, the diamond composite chip core drill bit that facilitates water drainage during drilling includes a steel body 1 and cutting teeth.

[0023] The steel body 1 is in the shape of a sleeve, one end of which is the first end connected with the drilling equipment, and the other end is the second end connected with the cutting teeth. The steel body 1 is provided with drainage openings 11 in the region between adjacent cutting teeth A21.

[0024] There are 3-5 groups of cutting teeth, and each group of cutting teeth is evenly distributed on the second end of the steel body 1 in a ring shape; one group of cutting teeth includes one cutting tooth A21 and at least one cutting tooth B22, and the cutting tooth A21 is fixed on the steel body 1 On the end surface of the second end of the steel body 1, the cutting teeth B22 are fixedly connected to the outer wall of the second end of the steel body 1, and are closely adjacent to the cutting teeth A21 in...

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Abstract

A diamond compact coring bit facilitating drainage in the drilling process comprises a steel body and three-five sets of cutting teeth. The steel body is in a sleeve shape, one end of the steel body is a first end connected with drilling equipment, and the other end of the steel body is a second end connected with the cutting teeth. Each set of cutting teeth is evenly distributed at the second endof the steel body ringwise. Each set of cutting teeth comprises a cutting tooth A and at least one cutting tooth B, the cutting teeth A are fixedly connected to the end face of the second end of thesteel body, and the cutting teeth B are fixedly connected to the outer side wall of the second end of the steel body, and adjacent with the cutting teeth A in the axial direction. A drainage notch isformed in the area, between every two adjacent cutting teeth A, of the steel body. The diamond compact coring bit has the advantages that the drill bit is good in anti-wear degree, a rock core of thestratum can be conveniently taken out in the working process, the gauge protection effect is good, and the situations of water blockage and drilling tool jamming cannot happen.

Description

technical field [0001] The invention relates to the technical field of geological exploration, in particular to a diamond composite core drill bit which facilitates water drainage during drilling. Background technique [0002] In geological exploration, in order to grasp the stratum structure, ore source distribution, etc., it is necessary to obtain relevant geological data by drilling cores. [0003] Drill bits are the key components of drilling equipment, and should have the characteristics of high strength and long service life. The performance of the drill bit is directly related to the drilling efficiency and drilling cost. [0004] The existing common diamond composite chip core bit for drilling cores includes a steel body and cutting teeth; the steel body is in the shape of a sleeve; there are multiple cutting teeth, which are welded to one end surface of the steel body at equal distances. , The steel body between the adjacent cutting teeth is provided with a semici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/43E21B10/60
CPCE21B10/43E21B10/60
Inventor 李晓欢
Owner QIDONG COUNTY FENGSU DRILLING TOOLS CO LTD
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