Coal bed methane extraction method capable of regulating and controlling desorption and diffusion
A diffusion method, a technology for coalbed methane development, applied in the field of underground energy mining
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[0043] To implement the coalbed methane mining method for regulating and controlling desorption and diffusion of the present invention, relevant implementation plans should be formulated according to the geological conditions of the coal seam on site. First, a small number of experimental wells should be selected for preliminary test evaluation, and then gradually expanded.
[0044] Before the test, the following features of the present invention should be fully considered:
[0045] 1. Because the frequency of the pressure wave is very low, it will travel far in the coal seam. When the microstructure of the coal seam absorbs the pressure wave, there will be an opportunity for wave trough superposition. This wave trough superposition will promote the desorption and cutting of coalbed methane. The expansion and connection of management and cracks;
[0046] 2. Since the fluctuating pressure is relatively small compared to conventional operations, it can only form elastic changes in the...
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