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鄂尔多斯盆地西缘南段下古生界储层主要为碳酸盐岩储层。通过研究鄂尔多斯西缘南段储层的内部结构特征、储层参数分布特征、孔隙结构特征和成岩作用特征,从定量的角度揭示各种地质作用与储层特征内在联系和定量属性,并对储层特征进行评价。主要根据长庆油田储层分类标准并综合各种因素,认为三道坎-桌子山组碳酸盐岩储集体多属Ⅳ~Ⅲ类储层,而克里摩里组碳酸盐岩储集体在不同子区域储层类型不一。
The Lower Paleozoic reservoir in the southern margin of the Ordos Basin is mainly a carbonate reservoir. By studying the internal structure, reservoir parameter distribution, pore structure and diagenesis of reservoirs in the southern section of the western Ordos Basin, the intrinsic relations and quantitative attributes of various geological functions and reservoir characteristics are revealed quantitatively. Layer characteristics of the evaluation. According to the reservoir classification criteria of Changqing Oilfield and the combination of various factors, it is considered that the carbonate reservoirs of Sandaoan-Zhangzishan Formation belong to the type Ⅳ-Ⅲ reservoirs, while the carbonate reservoirs of the Creimoli Formation Different sub-types of reservoir types.