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鄂尔多斯盆地苏里格气田是低渗透致密砂岩气藏的典型代表。储层沉积、成岩作用复杂,根据碎屑成分、成岩矿物组合、填隙物成分、成岩作用类型等特征,将苏里格气田盒8段储层划分为6种成岩相,并分析了不同成岩作用对测井响应的影响,在此基础上,通过自然伽马、声波时差、密度及深侧向测井与成岩相的对应关系,建立了相应的测井成岩相判别标准,使常规测井资料得到了更深入、广泛的应用。
The Sulige gas field in the Ordos Basin is a typical representative of low-permeability tight sandstone gas reservoirs. Reservoir sedimentation and diagenesis are complex. Based on the characteristics of detrital composition, diagenetic mineral assemblage, interstitial composition and diagenesis type, the reservoirs of Box 8 in the Sulige Gasfield are divided into six diagenetic facies, and different diagenetic facies On the basis of which the corresponding logging-diagenetic facies discrimination criterion is established through the correspondence of natural gamma ray, acoustic time difference, density and deep lateral logging and diagenetic facies, so that the conventional logging Data has been more in-depth, widely used.