Safety type high-energy gas fracturing device

Abstract

The invention discloses a safety type high-energy gas fracturing device which comprises an ignition powder ring (1) and a gas generation powder ring (2). The safety type high-energy gas fracturing device has the advantages that a center hole formed in an inner tube of the ignition powder ring (1) is a through hole, igniters can be arranged in the center hole, burning trains can be jointly formed by the igniters, the ignition powder ring (1) and the gas generation powder ring (2), a large quantity of high-energy gas can be generated by the gas generation powder ring (2) by means of combustion,and accordingly the purpose of fracturing surrounding constraint bodies can be achieved; the sensitivity of filled energy-containing materials is sequentially lowered from the inside to the outside, the ignition powder ring (1) is provided with energy-containing materials which cannot generate gas, the gas generation powder ring (2) is provided with insensitive gas generation agents, and the thicknesses of single edges of the gas generation powder ring are smaller than detonation extinguishment diameters of the filled insensitive gas generation agents; the safety type high-energy gas fracturing device is in modular designs, and accordingly various components are separately stored and transported, are assembled on sites and can be prevented from being detonated by No.8 detonators under thenormal pressure; reliable burning effects can be realized, radial clearance effects can be weakened, the safety type high-energy gas fracturing device is free of 'dead pressure' phenomena, different quantities of safety type high-energy gas fracturing devices can be serially connected with one another as needed, and accordingly fracturing effects can be flexibly adjusted.

Description

technical field [0001] The invention belongs to the technical field of exploitation of mineral resources such as petroleum, shale gas and pyrite, and particularly relates to a safe high-energy gas fracturing device. Background technique [0002] The high-energy gas fracturing technology produces a large amount of high-temperature and high-pressure gas through the deflagration of gunpowder, pressurizes gas, liquid, gas-liquid mixed foam and other working fluids, and acts on mineral resource reservoirs such as oil, shale gas, pyrite, etc., so that Cracks are generated in the reservoir, so as to increase the simultaneous unblocking of liquid and gaseous resource seepage channels, communicate with different reservoirs or pre-crack the solid mineral reservoir to facilitate the later mechanical mining of solid mineral resources, and finally achieve the purpose of increasing production. [0003] The current high-energy gas fracturing devices are almost all stored and transported as...

AI Technical Summary

Problems solved by technology

Once there is accidental or accidental loss during storage, transportation and use, it is easy to cause safety accidents and even endanger public safety.

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