多组分和吸附对页岩气储量计算的影响

摘要

Shale gas reservoirs are unconventional and use distinct method to estimate reserves. This paper discusses the distinctness of shale gas reservoir, analyzes several methods of shale gas reserve estimation. Shale gas reserves are calculated by employing EL model and IAS theory with consideration of multi-component and adsorption, and compared with the reserves calculated without such consideration. The result shows that multi-component and adsorption have great impacts on shale gas reserve estimation, and pressure is also an important affecting factor.%页岩气藏是1种非常规气藏,因其特殊性导致储量计算方法有别于常规气藏.为此,首先探讨了页岩气藏的特殊性,分析了计算页岩气储量的几种方法,在此基础上考虑多组分与吸附的影响,利用EL模型和IAS理论计算页岩气储量,并与不考虑组分和吸附时计算的储量进行对比.结果表明,多组分和吸附对页岩气储量计算影响较大,同时压力也是影响页岩气储量的重要因素.因此,两模型为页岩气的储量计算提供了依据.