曲流河点坝砂体内部建筑结构三维地质建模

油田进入高含水期后,由于砂体内部泥岩夹层的存在导致以河道砂体为主的储层依然有一定未动用的可动油。综合应用地质、测井和生产动态等资料,结合剖面分析、水动力条件等研究,应用RECON软件和Petrol软件实现了大庆油田北三区西部砂体内部侧积夹层的三维数字化表征,建立了曲流河砂体倾斜状泥岩夹层的三维地质模型,并最终实现了对曲流河点坝侧积夹层的半定量描述,进一步深化了对喇萨杏油田储层非均质性的认识程度,对以后该类储层挖潜具有一定的指导意义。

Inner geometry configuration three dimensional geological modeling of meandering river point bar sand body

Due to the existence of mud interlayer inside sand body, hydrocarbon was left inside river channel reservoir as the oilfield is at high water cut development stage. Three dimensional characteristics of lateral interlayer inside sand body of No. 3 district, Daqing Oilfield was displayed by using geological data, well logging, dynamic production data and cross-section and hydro-dynamics analysis with Rocon and Petrol software. A three dimensional geological model of mud interlayer inside the meandering river point bar was set up and semi-quantitative characters of the Inner geometry configuration of the meandering river point bar was described, which deepens the understanding of reservoir heterogeneity of Lasaxing Oilfield and has great significance on future development of this kind of reservoir.