Gas solubility in coalbed methane reservoirs

Input(s)

ρB\rho_{\mathrm{B}}: Bulk Coal Steam Density (g/cc)(\mathrm{g} / \mathrm{cc})

m\varnothing_{\mathrm{m}}: Actual Coalbed Cleat Porosity (fraction)

Som\mathrm{S}_{\mathrm{om}}: Initial Oil Saturation (fraction)

V: Gas Content (SCF/STB)

Output(s)

Rs\mathrm{R}_{\mathrm{s}}: Equivalent Gas Solubility (dimensionless)

Formula(s)

Rs=(0.17525ρBm Som) V\mathrm{R}_{\mathrm{s}}=\left(\frac{0.17525 * \rho_{\mathrm{B}}}{\emptyset_{\mathrm{m}} * \mathrm{~S}_{\mathrm{om}}}\right) * \mathrm{~V}

Reference(s)

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 3, Page: 222 .


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