十屋断陷营城组储层成岩相定量分析与优质储层预测

Quantitative Analysis of Diagenetic Facies and High-quality Reservoirs Prediction in Yingcheng Formation of Shiwu Fault

在岩石学特征及成岩作用研究基础上,选取适当的成岩指标:古地温、镜质组反射率、甾烷异构化指数、伊/蒙混层中蒙皂石含量和自生石英含量,分别数值模拟在时空领域内其进行的单项成岩作用,分析了营城组储层成岩阶段和成岩相的横向展布并对本区优质储层进行了预测。

Based on the research of petrological characteristics and diagenesis, we selected some diagenetic indexes, including five parameters which are palaeogeothermal, vitrinite reflectance, steroid silane isomerization index, the content of smectite layers in illite smectite mixed layer and spontaneous quartz content. We established a numerical modeling for single diagenesis in space-time respectively, and predicted the diagenesis stage and the horizontal distribution cloth of diagenetic facies In Yingcheng formation,at last we predicted the highaualitv reservoirs.