Volume of gas adsorbed in coalbed methane reservoirs
Input(s)
\(\mathrm{V}_{\mathrm{m}}\): Langmuir's Isotherm Constant (SCF/ton)
b: Langmuir's Pressure Constant (1/psi)
p: Pressure \((\mathrm{psi})\)
Output(s)
V: Volume of Gas Currently Adsorbed (SCF/ton)
Formula(s)
\[
\mathrm{V}=\frac{\mathrm{V}_{\mathrm{m}} * \mathrm{~b} * \mathrm{p}}{1+\mathrm{b} * \mathrm{p}}
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 4, Page: 320 .