考虑多组分吸附的页岩气储量计算  

Evaluation of shale gas reserves considering multi-component adsorption

作　　者：曹廷宽[1] 段永刚[1] 王容[1] 方全堂[1] 魏明强[1] 

机构地区：[1]西南石油大学国家重点实验室,四川成都610500

出　　处：《油气藏评价与开发》2011年第6期68-70,80,共4页Petroleum Reservoir Evaluation and Development

基　　金：国家重大专项"大型油气田及煤层气层开发"(2008ZX05022)

摘　　要：页岩气藏是一种主要以游离态、吸附态和溶解态赋存于泥、页岩中自生自储的非常规气藏。由于页岩气存在吸附解吸等特性,常规气藏储量计算方法没有合理考虑吸附气和游离气相所占体积而导致计算的页岩气藏储量偏高。从页岩气藏储层特征及气体赋存形式的研究出发,研究多组分气体吸附情况下的页岩气藏地质储量计算方法。通过实例分析表明该方法更加符合页岩气藏实际,为合理评价页岩气藏的储量和开发方案提供了科学依据。Shale gas reservoir is a kind of self-generating and self-storage unconventional gas reservoir, which is stored in mud shale in the form of free state, adsorbed state and dissolved state. With the properties of adsorption/desorption and so on, the con- ventional calculation method of gas reserves can not properly account for the volumes of absorbed gas and free gas, resulting in a higher calculated reserves of shale gas reservoir. Therefore, based on the study of reservoir characteristics of shale gas reservoir and the gas storage form, this article made a research on geological reserves evaluation method of shale gas reservoir with multi-compo- nent gas adsorption. Practice has suggested that this method was more in accordance with the actual situation of shale gas reservoir, providing scientific reference for reasonable reserves evaluation and development programs.

关 键 词：页岩气藏 储量计算 多组分 吸附解吸 扩展Langmuir等温模型 

分 类 号：TE122.2[石油与天然气工程—油气勘探]