Rate-transient analysis of an undersaturated CBM reservoir in Australia: Accounting for effective permeability changes above and below desorption pressure

• Published in: Journal of natural gas science and engineering Vol. 40; pp. 51 - 60
• Main Authors: Clarkson, C.R., Salmachi, A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2017
• Subjects: Analytical simulation; Desorption-dependent permeability; Fairview field; Flowing material balance; Rate-transient analysis; Stress-dependent permeability; Undersaturated coal; Analytical simulation; Flowing material balance; Fairview field; Rate-transient analysis; Undersaturated coal; Desorption-dependent permeability; Stress-dependent permeability

Rate-transient analysis (RTA) of coalbed methane (CBM) wells is an on-going reservoir engineering challenge because of the dynamic nature of coal reservoirs. During their lifetime, producing CBM wells completed in initially undersaturated reservoirs (flowing above desorption pressure) experience a c...