Mechanism of Methane Flow Through Solid Coal

Society for Mining, Metallurgy & Exploration
Satya Harpalani Malcolm J. McPherson
Organization:
Society for Mining, Metallurgy & Exploration
Pages:
6
File Size:
364 KB
Publication Date:
Jan 1, 1986

Abstract

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A thorough knowledge of coal permeability and its variation with factors like stress conditions, and time, is useful in simulation studies of mine ventilation and coalbed methane recovery, as well as characterizing coalbed methane reservoirs. An experimental investigation was carried out to study the gas flow characteristics of coal to enhance the under- standing of the mechanism of methane flow through it. The work consisted of measurement of permeability of coal samples under triaxial stress and an examination of the physical structure of coal using electron microscopy. Effort was made to fit the experimental data to several phenomenological models that have been used to describe fluid flow through porous media. It was realized that gas flow through coal cannot be described by models that assume this flow to be through a bundle of capillary tubes. However, results suggest that this gas flow could be predominantly through fractures and cracks in coal, and this could be represented by flow between parallel plates.
Citation

APA: Satya Harpalani Malcolm J. McPherson  (1986)  Mechanism of Methane Flow Through Solid Coal

MLA: Satya Harpalani Malcolm J. McPherson Mechanism of Methane Flow Through Solid Coal. Society for Mining, Metallurgy & Exploration, 1986.

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