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Improving coalbed methane recovery in fragmented soft coal seams with horizontal cased well cavitation
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Improving coalbed methane recovery in fragmented soft coal seams with horizontal cased well cavitation
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Journal Article
Improving coalbed methane recovery in fragmented soft coal seams with horizontal cased well cavitation
2024
Overview
Effective coalbed methane extraction from soft coal seams is essential for mine safety and energy supply. To enhance the extraction efficiency of coal mine methane (CMM) and reduce the risk of gas outbursts in coal mining areas, we developed an original and innovate horizontal well hydraulic cavitation method. A mathematical model that can quantitatively optimize construction parameters and improve the effectiveness of engineering applications was also constructed to calculate the technological parameters of this construction method. This technology differs from traditional approaches by relying on hydraulic erosion rather than water jets, and it can be implemented in cased horizontal wells. Utilizing the mathematical model grounded in porous media theory and Darcy’s law, numerical simulations with COMSOL Multiphysics were conducted and construction parameters optimized. The proposed technology significantly advances safe and efficient coalbed methane recovery, benefiting coal mine safety and environmental sustainability.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
