A mathematical model which simulates the flow of methane and water through a coal seam was developed. Partial differential equations governing the flow of methane and brine were derived from mass balances applied to an elemental volume of the reservoir. A two-dimensional cartesian coordinate system was superimposed on the coal seam and was utilized to transform the continuous flow equations to discrete form by application of finite differences. The study was extended to explore the interference effects on gas and water flow in multiple well systems. A repeatable unit of a staggered line drainage pattern was simulated and the effects of reservoir properties and well spacing were studied.
|Original language||English (US)|
|Number of pages||15|
|State||Published - Dec 1 1984|
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