论文部分内容阅读
以储层地质学、开发地质学和地球化学的相关原理为指导,采用一个原则、一个规律及一个依据的预测模式对鄂尔多斯盆地镇北—演武地区长3油藏有利含油区进行了综合研究。一个原则即两个为主、一个为辅的原则;一个规律即储层沉积规律;一个依据即以试油或开发数据为依据。研究表明,水下分流河道和河口坝微相发育区是镇北长3段有利的含油相带;厚砂岩沉积区是含油的有利砂体发育区;隆起高部位是含油的有利构造部位;地球化学运移指标急剧变化的主流方向是油气富集的方向。
Guided by the related theories of reservoir geology, development geology and geochemistry, this paper makes a comprehensive study on the favorable oil-bearing area of Chang 3 reservoir in Zhenbei-Yanwu area, Ordos Basin, using a principle, a rule and a predictive model. One principle is that two are dominant and one is supplemented. One rule is the law of reservoir sedimentation; one basis is based on test oil or development data. The results show that the microfacies of underwater distributary channel and mouth bar are the favorable oil-bearing facies belt in the 3rd member of Zhenbei; the thick sandstone sedimentary zone is the favorable zone of oil-bearing sand body; the high uplift is the favorable oil-bearing structure; The main direction of the chemical migration index drastic change is the direction of oil and gas enrichment.