Multicomponent gas counter-diffusion in coal

按目前的天然气价格计算，澳大利亚的煤层气资源量超过200亿美元。使用二氧化碳作为增强剂，甲烷的回收率可能会提高50%，再增加100亿美元的价值，同时永久和安全地隔离二氧化碳，可能获得高达150亿美元的碳信用。煤中二氧化碳、甲烷和其他气体同时交换的性质决定了最佳开采的许多工程要求。这是煤层气储集层模拟器开发的基础，目前还没有包含这一关键功能。这个项目旨在理解这种逆流和交流。

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.