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利用 X衍射全岩分析方法、粘土矿物定量分析方法和薄片鉴定等方法研究了城华地区延 8-延 1 0储层岩石学特征和孔隙成因类型 .综合论述了城华地区延 8～延 1 0油组不同岩相储层砂岩的基本特征 ,纠正了砂岩定名的错误和主要填隙物成份的错误 ,同时还论述了储层砂岩的孔隙特征和控制孔隙发育的主要因素 .
The petrological characteristics and the types of pores in the Yan 8-Yan 10 reservoir in Chenghua area were studied by means of X-ray diffraction method, quantitative analysis of clay minerals and identification of thin sections, etc. The effects of Yan 8 ~ Yan 1 0 The basic characteristics of different lithofacies reservoir sandstone in oil group corrects errors of sandstone naming and composition of main fill material. It also discusses the pore characteristics of reservoir sandstone and the main factors controlling pore development.