岩性油气藏 ›› 2015, Vol. 27 ›› Issue (6): 514.doi: 10.3969/j.issn.1673-8926.2015.06.002
张作清1,孙建孟2,龚劲松1,夏志林1
Zhang Zuoqing 1,Sun Jianmeng 2,Gong Jingsong 1,Xia Zhilin 1
摘要:
页岩气是一种重要的非常规天然气。 依据等温吸附实验数据,对影响页岩吸附能力的各项因素进行了分析,并借鉴 KIM 方程构建了页岩吸附气含量计算模型。 根据所建立的页岩岩石物理模型,对页岩的孔隙系统进行了划分,并构建了页岩岩石的导电模型,利用该导电模型计算了页岩的游离气饱和度。 模型参数全部实现常规测井资料计算,最后采用含气量计算模型对页岩气井进行了处理,同时对处理结果进行了分析,验证模型的准确性。 分析埋深、成熟度对页岩含气性的影响,并进行验证。 利用吸附气和游离气体积之和估算页岩气储层含气量,其结果与现场岩心解吸含气量对应良好,验证了本模型的可行性。
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