Combined device based on plasma channel and mechanical drilling tool and its drilling method

Abstract

The invention relates to a combination device based on a plasma channel and a mechanical drilling tool and a drilling method thereof, wherein the inner cavity of a double-chamber connecting rod based on a combined device of a plasma channel and a mechanical drilling tool is divided into a closed electrical room and a drilling fluid channel, Electrical induction devices are installed in the electrical room; the upper end of the double-chamber connecting rod is connected to the drill pipe and the turntable in turn, and there is a cable channel on the inner wall of the drill pipe, the cable passes through the cable channel and is connected to the DC power supply in the electrical room, and the lower end of the double-chamber connecting rod is connected to the Pressure telescopic rod, drill bit, pressure sensing device is installed on the pressure telescopic rod, the pressure sensing device is connected with the electrical sensing device, a partition is set in the center water eye of the drill bit, and one side of the partition is a partition water eye, grounding electrode and high voltage electrode It is installed on the other side of the partition and exposed; the lower end of the electrode connection device in the electrical room enters the drill bit and is connected to the grounding electrode and the high-voltage electrode respectively. The invention realizes simultaneous work of the drill bit, the high-voltage electrode and the ground electrode.

Description

[0001] Technical field: [0002] The invention relates to the field of drilling engineering, in particular to a combination device based on a plasma channel and a mechanical drilling tool and a drilling method thereof. [0003] Background technique: [0004] Plasma is called the fourth form of material existence. It is a conductive fluid composed of electrons, ions, free radicals and neutral particles. Plasma channel drilling is generated by DC power supply, capacitors, resistors, inductors and electrodes. Using plasma to break rocks is an imperfect technology and consumes a lot of energy. However, if plasma channel drilling and mechanical drill bits are combined to form a new drilling method, energy consumption can be reduced, and the drilling speed of traditional drilling can be improved. Therefore, in view of the above problems, designing a plasma channel drilling method and drill bit will Obviously necessary. [0005] Invention content: [0006] An object of the present ...

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide a combination device based on plasma channel and mechanical drilling tool, which is used to solve the problem that plasma channel drilling or mechanical drill bit drilling only work in a single way in the prior art, Another object of the present invention is to provide this drilling method based on the combination of plasma channels and mechanical drilling tools

Images