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曹崾岘地区位于陕北靖边地区,属于鄂尔多斯盆地伊陕斜坡中部。在大量的岩心铸体薄片、X衍射、扫描电镜及物性资料统计分析的基础上,总结研究了陕北靖边油田曹崾岘地区延安组延9油藏储层特征及物性,得出结论:该地区岩石成分主要以长石质石英砂岩、长石砂岩为主。孔隙类型以原生粒间孔为主,储层物性上,延9油藏分为两个小层,延91孔、渗好于延92。
Located in the Jingbian area of northern Shaanxi, Caoheheonian area belongs to the middle of the Iraqi-Shaanxi slope in the Ordos Basin. On the basis of a large number of core castings, X-ray diffraction, scanning electron microscopy and statistical analysis of physical data, the reservoir characteristics and physical properties of Yan 9 reservoir in Yan’an Formation in Caojianxian area, Jingbian Oilfield, northern Shaanxi were summarized. Rock composition mainly feldspar quartz sandstone, feldspar sandstone. The pore type is dominated by primary intergranular pores. On the reservoir physical properties, the Yan 9 reservoir is divided into two sublayers, extending 91 pores and seeping well in Yan 92.