Multicomponent gas counter-diffusion in coal

点击翻译按钮获取中文摘要

Coalbed methane resources in Australia surpass $20billion at present gas prices. Using CO2 as an enhancement fluid, recovery of methane can potentially be improved by 50% adding a further $10b value, simultaneously permanently and safely sequestering the CO2, with possible carbon credits of up to $15b. The nature of the simultaneous exchange of CO2, methane and other gases within the coal dictates many of the engineering requirements for optimal exploitation. It underlies the development of coal gas reservoir simulators, which currently do not incorporate this critical feature. This project is directed at understanding that counterflow and exchange.