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储层的沉积相研究通常是油气藏勘探开发过程中一项十分重要的任务,它控制着储集砂体的成因类型及宏观分布。在岩芯观察的基础上,结合综合录井资料和野外露头剖面信息,运用沉积学、沉积构造、剖面结构、古生物及测井相等划分沉积相的标志,对研究区内钻井进行单井沉积相划分,对不同钻井之间的沉积相进行综合比对,结果认为LEP区块长2段主要从三角洲前缘高建设的水下分流河道骨架砂体沉积为主。
The study of sedimentary facies in reservoirs is usually a very important task in the exploration and development of oil and gas reservoirs. It controls the genetic type and macroscopic distribution of reservoir sand bodies. Based on the core observation and combining the comprehensive logging data and the field outcrop profile information, sedimentary facies, sedimentary structure, profile structure, palaeontology and well logging are used to divide the sign of sedimentary facies, and single well sedimentary facies According to the comprehensive comparison of sedimentary facies between different drilling wells, it is concluded that the LEP block is mainly composed of the submarine distributary channel skeleton sand body with high delta front.