Abstract
Gas production from coal seams is extremely important for safety of coal mining by controlling methane emissions and also for utilizing the gas as an unconventional energy resource. In this work, an integrated study of coalbed methane (CBM) production history matching and filter-based multiple point geostatistical simulation is presented to quantify gas drainage from Jagger coal seam of Alabama. Initial and after-degasification gas in place (GIP) amount at each borehole location is presented using production history matching. Training images (TI) for these data are also presented and their merits for using them in simulations are discussed. Finally, the results of filter simulation to map GIP within the coal seam to quantify gas drainage efficiency are presented.
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