A device and method for exploiting shale gas combining laser and water jet technology

Abstract

The invention discloses a shale gas mining device and method with combination of laser and water jet technologies. The device mainly comprises a laser head, a water jet gun head and others. The laser head can emit controllable energy lasers, the water jet gun head jets active liquid to the surface of shale, the lasers are utilized for heating the active liquid to generate local temperature rise and thermal reaction liquid, an explosive chemical reaction is carried out in the liquid to generate high pressure to crash the shale, shale particles are smaller, and more shale gas is released. In this way, the shale is crashed rapidly, and the shale gas is efficiently obtained. The method can replace a hydraulic fracturing shale crashing mode used in the prior art, in this way, working efficiency can be substantially improved, and the shale gas can be efficiently mined. The active liquid for usage does not contain a chemical reinforcing agent and other contamination reagents, and will not cause water pollution, chemical pollution, methane pollution and other environmental problems.

Description

technical field [0001] The invention belongs to the technical field of shale gas exploitation, and relates to a shale gas exploitation device and method, in particular to a shale gas exploitation device and method utilizing a combination of laser and water jet technology. Background technique [0002] With the increasing shortage of oil and gas resources and the consideration of energy security, shale gas, an unconventional natural gas resource that can effectively relieve the world's energy pressure, is being sought after by countries all over the world, and has become one of the hot spots in world energy research. Its development And utilization is getting more and more attention from all over the world. Shale gas is a valuable resource, high-quality energy and chemical raw material, and can be used as a replacement or supplementary energy source for conventional natural gas. The world's shale gas resources are abundant, but they have not been extensively explored and dev...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a new method for mining shale gas by combining laser and water jet technology, give full play to the advantages of laser technology and water jet technology, and solve the problem of low efficiency of mining shale gas and the process of mining shale gas. The problem of low mining depth caused by environmental pollution and insufficient energy at the bottom of the well has realized the efficient and clean production of shale gas and guaranteed the security of national energy strategy

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