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鄂尔多斯盆地的彬县-旬邑地区勘探程度相对较低,中生界油层埋藏浅,勘探潜力较大,主力油层组长8油藏研究薄弱。利用岩心、测井和多种分析测试资料,对长8油层组油藏特征、油藏类型进行研究。结果表明:长8油层分布普遍,油藏单层厚度薄,储层物性差,长8油藏以岩性油藏和构造-岩性油藏为主,主要受油源、沉积背景、储层条件以及构造形迹等因素的影响。
The exploration of Ordos Basin in Binxian-Xunyi area is relatively low, the Mesozoic reservoir is buried shallow, and the exploration potential is relatively large. The reservoir characteristics and reservoir type of Chang 8 reservoir are studied by using core, well logging and a variety of analytical and testing data. The results show that the Chang 8 reservoirs are generally distributed with thin single reservoirs and poor reservoir properties. The Chang 8 reservoirs are dominated by lithologic reservoirs and structural-lithologic reservoirs, and are mainly controlled by oil source, sedimentary background, reservoir Conditions and the impact of structural factors such as footprint.