Intrinsic-safety-type dry ice powder static pneumatic fracturing simulation device and using method thereof

Abstract

The invention discloses an intrinsic-safety-type dry ice powder static pneumatic fracturing simulation device. The intrinsic-safety-type dry ice powder static pneumatic fracturing simulation device comprises an acrylic block, a cracking hole is formed in the acrylic block and internally provided with a cracking pipe, the cracking pipe is internally provided with dry ice powder, a cracking agent and an electric tracing band, an opening in the upper part of the cracking pipe is sealed through a sealing cap, the sealing cap comprises a nut part and a connecting part which are connected integrally, the connecting part and an upper thick part are connected through a thread, two screw holes are formed in the nut part, spacers are arranged on the lower parts in the screw holes, screws are screwedinto the screw holes and then extrude the spacers, one ends of heating wires are connected with the electric tracing band, the other ends of the heating wires are connected with an electric tracing band power supply, one end of a cracking wire extends into the cracking agent, and the other end of the cracking wire is connected with a cracking agent excitation controller. The invention further discloses a using method of the intrinsic-safety-type dry ice powder static pneumatic fracturing simulation device. According to the intrinsic-safety-type dry ice powder static pneumatic fracturing simulation device and the using method thereof, an ideal fracturing effect can be realized, safety is high, and operation is easy.

Description

Technical field [0001] The invention relates to an intrinsically safe dry ice powder static pneumatic fracturing simulation device and a use method thereof, belonging to the technical field of pneumatic fracturing and the field of blasting experiment teaching. Background technique [0002] In recent years, carbon dioxide fracturing has gradually emerged. High-energy gas fracturing technology first appeared in the United States in the 1860s. This technology uses the shock wave and explosive gas generated by the combustion of fire (explosive) in a short time to fracturing rock mass. Initially, explosive fracturing such as TNT was used to explode the reservoir, but the explosion caused too much damage to the wellbore and formation and was gradually eliminated. Instead, the deflagration of fire (explosive) such as nitrocellulose was used to implement high-energy gas. fracture. In recent years, a series of dense nitromethane explosives, liquid propellants and other high-energy gunpo...

AI Technical Summary

Problems solved by technology

[0003] However, whether it is controlled blasting technology or high-energy gas fracturing technology, Class I and Class II civilian explosives are currently used to varying degrees (the exothermic drug used in the current carbon dioxide phase change expansion fracturing technology belongs to Class II civil explosives), Did not fundamentally solve the problem of safety and impact disturbance

Under the current situation, explosive blasting is difficult to enter the school experimental teaching due to the danger and pollution to the environment.

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