Rock stratum steam fracturing device applied to shale gas exploitation

Abstract

The invention discloses a rock stratum steam fracturing device applied to shale gas exploitation. The device is formed by a shaft, a liquid delivery pipe, a submersible pump, a reservoir, an emery feeding hole, an air pump, a gas transmission line, an alternating current power supply, a gas storage tank, perforations, a limiting spring, a metal rod, a guide wire, and an emery particle and water outlet, wherein the submersible pump is used for delivering clear water and emery particles in the reservoir to the horizontal shaft by the liquid delivery pipe, symmetric perforations are uniformly distributed in the horizontal shaft, the metal rod is arranged at the perforations, the middle of the metal rod is of a hollow structure, the limiting spring passes through the metal rod and is stuck at the wall of the shaft to limit and fix the metal rod. The guide wire is wound on the metal rod, alternating current is introduced to the guide wire, and the air pump is arranged at the outlet of the shaft so as to collect natural gas produced by fracturing into the gas storage tank. According to the rock stratum steam fracturing device, a method of quickly generating a large amount of steam to facture rock by electromagnetic induction heating is adopted, and requirement for a large amount of water resource is avoided; because fracturing fluid is not needed, pollution to the underground environment can be avoided.

Description

technical field [0001] The invention relates to the field of shale gas exploitation, in particular to shale fracturing technology, and relates to a rock formation steam fracturing device. Background technique [0002] The global energy crisis is becoming more and more serious, and the energy pattern is constantly changing. As the world's most important energy source, the total global output of oil has hovered around 3.6 billion tons almost every year since entering the 21st century. Many evaluators believe that its "peak output" has arrived, and it is difficult to increase its output significantly in the future. To meet the substantial increase in global energy demand. Nuclear power, which was once expected to be high, after the Fukushima nuclear accident in Japan, Germany, Japan and other countries have successively issued a schedule for "nuclear abandonment", which can no longer provoke the burden of future energy supply. Shale gas, which is called a "game changer" by th...

AI Technical Summary

Problems solved by technology

[0007] However, all hydraulic fracturing technologies require a large amount of water resources. After the fracturing operation is completed, the water carrying the proppant cannot be recycled, which not only causes serious pollution to the groundwater and other environments, but also causes a large amount of waste of water resources.

Today, when water resources are increasingly scarce and calls for environmental protection are increasing, the problems of hydraulic fracturing technology are becoming more prominent, resulting in high cost of shale gas exploitation and serious environmental pollution.

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