Liquid-phase discharge shock wave drilling device

Abstract

The invention discloses a liquid-phase discharge shock wave drilling device. The device comprises a shell provided with a fluid inlet section and a fluid outlet section, wherein a liquid-electricity pulse generator is arranged in the shell, and comprises a hollow body, a central flowing channel is formed in the middle of the body, a diversion opening is formed in the upper part of the body, a fluid outlet, a first electrode and a second electrode are formed at the lower part of the body, an electrode gap is formed between the two electrodes, the middle point of the electrode gap is located right below the central flowing channel, a rotary parabolic cavity is formed at the fluid outlet, a rotary parabolic cavity cross section parabola is formed in the section of the rotary parabolic cavity,and a parabolic vertex serves as an origin, the central axis of the shell serves as a y axis, the line which is perpendicular to the central axis of the shell serves as an x axis, the parabolic equation is that y equals a*2, wherein a is a constant. According to the device, the rock breaking can be assisted, and the drilling cost is saved.

Description

technical field [0001] The invention relates to the technical field of drilling auxiliary equipment, in particular to a liquid phase discharge shock wave drilling device. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] The object of drilling and production technology is the downhole system (from the wellbore to the formation). This object is characterized by small boreholes, deep formations, complex downhole conditions, and poor visibility. Only downhole drilling and production tools can be the closest to work. object. Therefore, if you want to use the new drilling and production technology to perform fine operations on the downhole system, you can only rely on downhole drilling and production tools. [0004] The demand for the development of advanced drilling and production technology has led to the emergence of new downhole drilling and production...

AI Technical Summary

Problems solved by technology

[0005] Traditional drilling methods have always had problems such as low efficiency in energy transmission, conversion, distribution and utilization during the drilling process

Although rotary percussion drilling and downhole pressurized drilling can increase the ROP to varying degrees, they have not been widely used in the field due to their poor life and stability.

Pulse jet assisted drilling technology has achieved certain results in the field, but because of its short life, there are also certain limitations

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