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Fracking to approach permeability enhancement is indispensable to enhance coalbed methane recovery, which can significantly reduce greenhouse gas emissions and produce substantial clean energy. To access efficient fracking, samples of Permian low permeable coal reservoir were cracked into different sizes or scales of blocks and particles with liquid nitrogen cryogenic freeze fracturing (FF) by maximizing...
Although the production mechanism of CO2-enhanced coalbed methane (ECBM) recovery has been previously reported and corresponding models have been proposed, investigations on the effect of the injection pressure on the production efficiency considering the mass transfer between the coal fracture and matrix are lacking. In this study, laboratory core flooding experiments were conducted on the coal sample...
Green Mine has become a common plan of Green Mining in China since 2003. Phosphate mining is noticeably important for agriculture. Despite mining technologies made a great progress, resources depletion and mining produced environmental problems are still very severe in many developing countries. Green Mine construction can be a feasible choice to arouse the enthusiasm of Corporation Social Responsibility...
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