Nano-coating compensated matrix PDC drilling bit

Abstract

The invention discloses a nano-coating compensated matrix PDC drilling bit. The PDC drilling bit comprises a tool apron, a fixed block, a tool holder, a cutting edge and a tool body, wherein the bottom of the tool holder is fixedly connected with the top of the tool body, a clamp block is fixedly connected with the top of one side of the inner wall of the fixed block, one side, away from the fixedblock, of the clamp block penetrates through the tool holder and extends into the tool holder, and clamp slots matched with the clamp block are formed in two sides of the tool holder. The invention relates to the technical field of production of talcum powder. According to the nano-coating compensated matrix PDC drilling bit, a split structure can be adopted between the drilling bit and a connector, when the drilling bit is worn and required to be replaced, the drilling bit is not needed to be replaced overall, the drilling bit and the connector are firmly connected, normal use of the drilling bit during drilling cannot be affected, a certain economic cost is reduced, meanwhile, by means of cutting sharp teeth, cutting pressure intensity is increased, drilling is performed by adopting aninserting mode, the cutting speed is high, and the effect is good.

Description

technical field [0001] The invention relates to the technical field of talcum powder production, in particular to a nano-spraying compensation matrix type PDC drill bit. Background technique [0002] During the drilling process, the drill bit is the main tool for breaking rock. The well hole is formed by breaking the rock with the drill bit. Whether a well hole is formed well or not, the length of time it takes depends on the characteristics of the drilled formation rock and the performance of the drill bit itself. In addition, it is more related to the degree of matching between the drill bit and the formation. The reasonable selection of the drill bit plays an important role in increasing the drilling speed and reducing the overall cost of drilling. The drill bit is one of the important tools for oil drilling. Whether the drill bit is suitable for The nature of rock and its quality play a very important role in the selection of drilling technology, especially the drilling ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a nano-spraying compensation matrix type PDC drill bit for the above-mentioned deficiencies in the background technology, so as to solve the problem that the joint is intact when the cutting wing on the surface of the drill bit is in frictional contact with the rock for a long time in the prior art and the drill bit loses cutting ability. In some cases, it is necessary to replace the entire drilling tool, which increases a certain economic cost. At the same time, the existing drill bit adopts cylindrical horizontal teeth to cut the ultra-hard and wear-resistant formation, which is difficult to cut in, and the technical problem is that the resistance is large and the cutting effect is poor.

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