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Simulation of an Enhanced Gas Recovery Field Trial for Coal Mine Gas Management by Russell Packham; Yildiray Cinar; Roy Moreby is a Engineering article available to read on EtoBox.

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Coal mine gas management has evolved from being predominantly dependant on mine ventilation systems to utilising sophisticated surface based directional drilling for pre-drainage of coal seams. However the advent of enhanced gas recovery techniques in the coalbed methane industry has provided an opportunity to address gas management objectives hitherto impractical. Specifically: achieving very low residual gas contents to mitigate against frictional ignitions and fugitive emissions; the means to accelerate gas drainage to accommodate mine schedule changes; and to enable pre-drainage of coal reserves with very low permeability. This article examines a possible enhanced gas recovery field trial at an Australian mine site. Production data from four surface to inseam medium radius gas drainage boreholes was modelled and history matched. The resulting reservoir characteristics were then used to model the performance of the boreholes using an enhanced recovery technique. One of the boreholes is modelled as an (nitrogen) injection well and two flanking wells are modelled as production wells. The model results suggest that accelerated gas flow rates as well as very low residual gas content

Who reads Simulation of an Enhanced Gas Recovery Field Trial for Coal Mine Gas Management?

Author

Russell Packham; Yildiray Cinar; Roy Moreby

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0166-5162)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)