Electric Detonation Liquid Charge Dynamic Fracturing Device
A technology for liquid medicine and fracturing device, applied in the field of coal seam fracturing device, can solve the problems of hidden danger of fracturing device, poor energy utilization rate, easy clogging of coal seam cracks, etc. The effect of hidden phenomena
Active Publication Date: 2018-02-02
ZHONGBEI UNIV
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Problems solved by technology
[0004] In order to solve the problems of hidden safety hazards, poor energy utilization rate and easy blockage of coal seam cracks in the existing fracturing devices, the present invention provides a dynamic fracturing device with electric detonation liquid medicine
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[0010] The dynamic fracturing device for electric detonation liquid medicine includes a fracturing outer cylinder 1, the upper part of the fracturing outer cylinder 1 is plugged with an electrode inflatable plug 2 sealed with it, and the lower part of the fracturing outer cylinder 1 is connected with an air injection pipe 3, A sealing gasket 4 and a steel diaphragm 5 are arranged between the air pipe 3 and the fracturing outer cylinder 1, a number of air injection holes 6 are opened on the outside of the air injection pipe 3, and an electrode column 7 and a liquid carbon dioxide channel 8 are arranged in the electrode inflation plug 2. The liquid carbon dioxide channel 8 is provided with a one-way valve 9, the upper part of the electrode charging plug 2 is plugged with a power cylinder 10, and a high-voltage power supply 11 is placed in the power cylinder 10; the middle part of the fracturing outer cylinder 1 is provided with flexible connections distributed up and down Cylinde...
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The invention relates to an electric initiating liquid propellant dynamic fracturing device which solves the problems that for an existing fracturing device, potential safety hazards exist, the energy utilization efficiency is poor, and a coal bed crack is prone to block. An electrode inflation plug is connected to the upper portion of a fracturing outer cylinder in an inserted mode, an air-ejecting pipe is connected to the lower portion of the fracturing outer cylinder in an inserted mode, multiple air-ejecting holes are formed in the outer side of the air-ejecting pipe, the electrode inflation plug is internally provided with an electrode column and a liquid carbon dioxide channel, a power cylinder is connected to the upper portion of the electrode inflation plug in an inserted mode, and a high voltage power supply is arranged in the power cylinder; soft connecting cylinders are arranged in the middle of the fracturing outer cylinder, an insulation soft cylinder is connected between the two soft connecting cylinders, insulation plugs are connected to the outer ends of the two soft connecting cylinders in an inserted mode, the two insulation plugs are each provided with an electrode column I, the upper end and the lower end of each electrode column I are each provided with a wire, an inner connecting cylinder is connected to the upper portion of each insulation plug located on the upper portion in a sleeving mode, and each inner connecting cylinder is provided with liquid carbon dioxide circulation holes. According to the electric initiating liquid propellant dynamic fracturing device, potential safety hazards are eradicated, and the utilization rate of high-energy mixed gas is greatly increased.
Description
technical field [0001] The invention relates to a coal seam fracturing device, in particular to a dynamic fracturing device for electric detonation liquid medicine. Background technique [0002] High-energy gas fracturing technology is to use solid, liquid gunpowder or propellant to generate a large amount of high-temperature and high-pressure gas generated by rapid combustion in the target layer of the oil layer, and pulse-load fracturing on the formation, so that the formation will generate and form a multi-fracture system, and at the same time generate strong pulse oscillations It acts on the formation matrix, comprehensively improves and enhances the permeability and conductivity of the formation, and expands the range of effective oil (gas) recovery, so as to achieve the purpose of increasing production. Its characteristics are: it can generate a multi-fracture system in the formation that is not constrained by in-situ stress, which is conducive to communicating natural...
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IPC IPC(8): E21B43/263
CPCE21B43/263
Inventor 马铁华王志强张红艳殷帅崔春生孙传猛王振富武志博袛会强陆真孙猛
Owner ZHONGBEI UNIV