吴堡地区南梁油田长8油层组典型开发区地质建模

Geological Modeling in Typical Development Area of Chang 8 Reservoir Group in Nanliang Oilfield of Wubu Area

采用序贯指示建模法,建立了吴堡地区长8油层组典型开发区的地质模型。通过基础地质研究,确定区内三角洲前缘各微相储层结构及其几何形态。在此基础上,将储层平面微相、剖面微相特征数字化,作为约束条件限制,指导储层建模。为避免序贯指示建模过程中砂体零散分布,采用后处理平滑技术较好地实现了砂体连续分布模拟。地质模型与地质认识较为符合,为油藏后续开发奠定了坚实的基础。

A geological model for Chang 8Reservoir Group in Wubu Area was established by using sequential indication simulation.The reservoir structure and geometric types of each delta front microfacies in the study area were identified through basic geological research.On this basis,the characters of plane and profile microfacies were digitized to constrain reservoir modeling and guide the reservoir modeling.At the same time,in order to avoid scattered distribution of sand bodies in modeling of sequential indicator simulation,and modeling of continuous sand body distribution was realized by using post-treatment smoothing technology.The result indicates that the geological modeling is better agreed with geological understanding,it provides a solid basis for consequent development of the reservoir.