1984•SPE Unconventional Gas Recovery SymposiumRequires access

Effect of Pressure-Dependent Permeability on Well-Test Analyses and Long-Term Production of Methane From Coal Seams

F. C. Schwerer, A.M. Pavone

Abstract

ABSTRACT Laboratory measurements have shown that the permeability of coal samples varies significantly for ranges of pressure encountered during the testing of coalbed methane wells. A laboratory pressure-permeability relation has been used with a numerical, two-phase coalbed methane simulator to examine the effect of pressure-dependent permeability on well-tests and on production of coalbed methane.

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Key concepts: Coalbed methane, Permeability (electromagnetism), Methane, Petroleum engineering, Coal, Coal mining, Environmental science, Geology