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In-Situ Processes: Underground Coal Gasification
1981The idea of recovering the energy values of coal by in-situ processes, without the intervention of human effort below ground and without bringing waste to the surface, is one which has exceptional appeal to the public. For this reason alone, a careful analysis of the possibilities is desirable, regularly renewed in the light of developing technology ...
L. Grainger, J. Gibson
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Geomechanical Modeling of Underground Coal Gasification
2016The geomechanical responses of a coal seam and its surrounding strata in underground coal gasification (UCG) are significant owing to the high temperature nature of the UCG process and the cavity evolution. In this thesis, the results from a reservoir simulator are coupled with a geomechanical module to solve for the displacement and stress variations.
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Cavity Models for Underground Coal Gasification
2017Underground coal gasification is an in situ coal utilization technique that has immense potential as a future clean coal technology. UCG possesses a number of advantages including the ability to use deep and unmineable coals. The most important component of UCG is the underground “cavity”—which serves as a chemical reactor with rich interplay of ...
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Operational process parameters of underground coal gasification technique and its control
Journal of Process Control, 2023R. Mandal, Tanmoy Maity
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