Servo seepage method for fracturing gas-containing coal body with high-power impulse waves
A high-power pulsed, gaseous coal technology, used in permeability/surface area analysis, suspension and porous material analysis, instruments, etc., can solve the problems of large construction volume, complex process and high cost
Inactive Publication Date: 2019-02-22
CHONGQING UNIV
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Problems solved by technology
These technologies generally have disadvantages such as complex process, large construction volume, high cost and limited application range.
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Embodiment 1
[0093] A servo seepage method for fracturing gas-containing coal bodies with high-power pulse waves, including
[0094] Step a: making coal sample 1;
[0095] Step b: installing a high-power pulse generating mechanism;
[0096] Step c: use a wire to connect the high-power pulse generating mechanism to the coal sample 1;
[0097] Step d: Operate the high-power pulse generating mechanism, so that the high-power pulse generating mechanism emits high-power pulses to the coal sample 1 with a set pulse energy to crack the coal sample 1 .
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The invention relates to the technical field of exploitation of coal-bed methane (mine gas) and particularly relates to a servo seepage method for fracturing a gas-containing coal body with high-powerimpulse waves. The servo seepage method comprises the following steps: Step a, making a coal sample; Step b, mounting a high-power impulse generation mechanism; Step c, connecting the high-power impulse generation mechanism and the coal sample through a conducting wire; and Step d, operating the high-power impulse generation mechanism, so that the high-power impulse generation mechanism can transmit high-power impulses to the coal sample with set impulse energy to fracture the coal sample. The servo seepage method has the beneficial effects that the impulse energy required for enabling the fracturing effect on the coal body to be better can be more accurately determined when the coal body is fractured with the high-power impulses.
Description
technical field [0001] The invention relates to the technical field of coal bed methane (mine gas) exploitation, in particular to a servo seepage method for cracking gas-containing coal bodies by high-power pulse waves. Background technique [0002] In recent years, with the development of science and technology, my country has made a breakthrough in the development of coal seams. As my country's coal demand increases year by year, the mining of coal seams in my country has gradually shifted to the deep. Deep coal seams have high gas pressure and high gas content, which easily lead to coal and gas outburst dynamic disasters in the mine production process. In order to prevent coal and gas outburst disasters and ensure safe production, it is necessary to drain the gas in the coal seam before mining the coal seam. However, the gas permeability of deep coal seams is generally low, so gas drainage is more difficult. In order to reduce the difficulty of gas drainage, measures ne...
Claims
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Login to View More IPC IPC(8): G01N15/08
CPCG01N15/082G01N15/0826
Inventor 许江闫发志尹光志彭守建李全贵邹全乐周斌甘青青张辰庆陈奕安王瑞芳
Owner CHONGQING UNIV
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