Seepage channel model and gas–water differentiation of near-vertical coal reservoirs in the Kuba coalfield, China: implication for coalbed methane development
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-020-05397-5
Abstract: The coal seams in Kuba coalfield are near-vertical distributed, and the composition of the seepage channel and gas–water differentiation is quite different from that of the horizontal coal seam. By using high-precision tectonic fracture mapping… read more here.
Keywords: near vertical; gas; gas water; seepage channel ... See more keywords
Threshold pressure gradient for helium seepage in coal and its application to equivalent seepage channel characterization
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2021.104231
Abstract: Abstract Seepage is the main gas migration form in coal seam. The experiments in this study show that there exist threshold pressure gradient and low-velocity nonlinear seepage phenomenon when non-adsorbable helium flows in coal briquette.… read more here.
Keywords: pressure gradient; seepage channel; seepage; coal ... See more keywords