Intelligent adaptive acceleration drill bit and drilling method

Abstract

The invention relates to an intelligent adaptive acceleration drill bit and a well drilling method. The drill bit comprises a dominant attack teeth, a comprehensive drilling drill bit, a bit pressureregulation and control part and a force transmission shaft, wherein the dominant attack tooth is connected with the force transmission shaft, the comprehensive drilling drill bit and the dominant attack teeth are arranged in a longitudinally staggered mode, the comprehensive drilling drill bit is movably connected with the force transmission shaft in the axial direction and can be in torque transmission connection with the force transmission shaft in the circumferential direction, the bit pressure regulation and control part enables the comprehensive drilling bit and the force transmission shaft to form compression elastic force connection in the axial direction when pressing force is applied to the force transmission shaft, and the force transmission shaft is constructed to be capable ofapplying drilling pressure and torsion on the force transmission shaft. According to the intelligent adaptive acceleration drill bit, an annular groove is broken in advance through the dominant attackteeth, overall borehole extension is achieved through the comprehensive drilling drill bit, the bit pressure and the drilling speed between the dominant attack teeth and the comprehensive drilling drill bit are intelligently adjusted and controlled through an internal elastic mechanism, and therefore the rock breaking efficiency is improved, and the service life of the drill bit is prolonged.

Description

Technical field [0001] The present invention relates to the field of drilling engineering, and in particular to a wisdom to speed up a drill bit and a drilling method. Background technique [0002] Intelligent drilling is an inevitable trend of drilling development. However, the implementation and development of intelligent drilling must rely on high-quality reliable drilling equipment. The drill bit is the most important drilling equipment, and its performance is directly related to rock efficiency and drilling speed, how to improve the rocking efficiency of drill bits. And extending the life of the drill bit is a hot problem that has been studied in the drilling field, and is also a problem that the intelligent drilling must overcome. [0003] The existing drill bit is usually a full diamond drill bit. The rock is very strong when drilling, and the drill bit will encounter great resistance when the drill is started, causing a limited life of the drill bit, and the application r...

AI Technical Summary

Problems solved by technology

[0003]Existing drill bits are usually full-bore drill bits, and the rock is very strong when drilling, and the drill bit will encounter great resistance when it first drills, resulting in a limited service life of the drill bit , it is difficult to broaden the scope of application and fail to meet the needs of intelligent drilling

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