Material-balance techniques for coal-seam and Devonian shale gas reservoirs with limited water influx

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Abstract

This paper presents the development of two material-balance methods for unconventional gas reservoirs. One method is appropriate for estimating original gas in place; the second is appropriate for making reservoir predictions. These techniques differ from the material-balance methods for conventional gas reservoirs in that the effects of adsorbed gas are included. For estimating original gas in place, the assumption of equilibrium between the free- and adsorbed-gas phases is required. No additional assumptions are required for reservoir predictions.

Original languageEnglish (US)
Pages (from-to)67-72
Number of pages6
JournalSPE Reservoir Engineering (Society of Petroleum Engineers)
Volume8
Issue number1
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Process Chemistry and Technology

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