论文部分内容阅读
砂岩储层中粘土矿物的含量、产状及分布特征是研究油层潜在敏感性的基础，本文对枣南油田砂岩储层中的粘土矿物特征进行了研究，并对其进行了流动试验以及敏盛性试验，以此来评价油层的敏感程度。研究表明，枣南油田砂层储层中的粘土矿物主要有四种类型，即伊／蒙混层、伊利石、高岭石和绿泥石，其分布主要受埋深、沉积相带以及储层中流体介质性质等因素的控制，在油层开发过程中，表现为强速敏、弱一中等水敏、中等偏强盐敏、中一强酸敏等特点。最后该区粘土矿物的敏感性问题进行了评价。
The content, occurrence and distribution characteristics of clay minerals in sandstone reservoirs are the basis for studying the potential sensitivity of oil reservoirs. In this paper, the characteristics of clay minerals in the sandstone reservoirs of Zaonan Oilfield are studied, and the flow tests, In order to evaluate the sensitivity of the reservoir, The results show that there are mainly four types of clay minerals in the sand reservoirs in the Zaonan Oilfield, that is, the Iraq / Mongolia mixed layer, the illite, the kaolinite and the chlorite. Their distribution is mainly affected by the depth of burial, sedimentary facies and reservoir Fluid medium properties and other factors in the control of the development process, the performance of the strong speed sensitive, weak a medium water sensitive, medium strong salt sensitive, a strong acid sensitivity and so on. Finally, the sensitivity of clay minerals in this area was evaluated.