Mathematical Modeling of Coal Bed Methane Generation

B.Nalinikant | B. Gopal Krishna | M. Jagannadha Rao ^[4]

Abstract: Coal-Bed Methane reservoirs have a number of unique features compared to porous or fractured gas reservoirs. Here, the paper presents 2-D mathematical model of coal bed methane generation/storage based on the theories of surface physical chemistry such as Langmuir adsorption isotherm. In this paper, Gibbs isotherm, Langmuir adsorption isotherm, porosity and surface excess are used to derive a formula which is helpful in simulating the generation of Methane adsorbed by coal beds in a real time scenario by assuming gas as ideal gas. Here, results are verified by plotting graphs and then comparing them to field data.

Keywords: Langmuir adsorption isotherm, CBM Coal Bed Methane, Gibbs isotherm, time relation

Edition: Volume 4 Issue 7, July 2015,

Pages: 618 - 624

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Mathematical Modeling of Coal Bed Methane Generation

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