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Drill bit special for oil and gas drilling

A technology of oil and gas drilling and drill bits, which is applied in the direction of drill bits, drilling equipment, earthwork drilling and production, etc., and can solve the problem of not being able to transfer out the heat of the soil in time

Inactive Publication Date: 2018-03-02
CHENGDU JUNSHUO RUIZHI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a special drill bit for oil and gas drilling to solve the technical problem that the existing drill bit cannot turn out the soil and the heat generated in time

Method used

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  • Drill bit special for oil and gas drilling

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Effect test

Embodiment 1

[0015] Such as figure 1 As shown, a special drill bit for oil and gas drilling includes a threaded drill sleeve 1 and a rotating shaft 2, the inner end of the rotating shaft 2 is connected with a drill tip 4, and an outer diameter is passed between the drill tip 4 and the rotating shaft 2 It is connected with the same connecting column 3 as the drill sleeve 1, and the connecting column 3 has several mud flow passages 31 evenly distributed in the axial direction, and the drill tip 4 is composed of several triangular pieces evenly distributed circularly around the end surface of the connecting column 3, The drill sleeve 1 is uniformly provided with a plurality of mud-water through-holes 11 connecting the two ends of the drill sleeve 1 along the circumferential direction.

[0016] Both the drill tip 4 and the rotating shaft 2 are welded with the connecting column 3 .

[0017] The material of the drill sleeve 1 , the rotating shaft 2 and the connecting column 3 is a heat-conducti...

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Abstract

The invention provides a drill bit special for oil and gas drilling and relates to oil and gas drilling devices. The drill bit comprises a drill bushing and a rotating shaft which are connected in threaded and sleeving mode; the inner end of the rotating shaft is connected with a drill tip; the drill tip and the rotating shaft are connected through a connection column with the outer diameter beingthe same as the outer diameter of the drill bushing; a plurality of mudflow channels are distributed uniformly in the connection column in the axial direction; the drill tip is composed of a plurality of triangular pieces distributed annularly and uniformly around the end face of the connection column; and a plurality of muddy water through holes connected with the two end faces of the drill bushing are formed in the drill bushing uniformly and annularly in the axial direction. The drill tip composed of the multiple annularly-distributed triangular pieces is arranged, the connection column with the mudflow channels is arranged, and the muddy water through holes are formed in the drill bushing so that condensed liquid can enter the drill bushing conveniently through the muddy water throughholes to reach the tip end of the drill tip to be mixed with soil or rock crushed by the drill bit, accordingly roll-out of the soil or the rock crushed by the drill bit is facilitated, and meanwhilethe soil or the rock crushed by the drill bit and generated heat are taken away.

Description

technical field [0001] The invention relates to an oil and gas drilling device, in particular to a special drill bit for oil and gas drilling. Background technique [0002] Oil and gas drilling is the most important operation in oil and gas extraction. Because oil and gas are flammable and explosive, in oil and gas drilling operations, explosion protection is an important measure for safe mining. Currently, the most common drilling method is to use the cutting force generated when the drill bit rotates. Or grinding to break soil or rock. During the rotation of the drill bit, the friction between the drill bit and the soil or rock and the kinetic energy of the drill bit itself will generate a lot of heat. It will be unimaginable; in the prior art, it is difficult to turn out the broken soil or rock of the drill bit, which also seriously affects the working efficiency of drilling. important. Contents of the invention [0003] The invention provides a special drill bit for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/43E21B10/60
Inventor 张德彬
Owner CHENGDU JUNSHUO RUIZHI INFORMATION TECH CO LTD
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