一种基于面的三角洲前缘河口坝建模方法

A Stochastic Modeling Method for Surface- based Delta Front Mouth Bar Reservoirs

油田深度开发要求建立精细的储层地质模型,为提高模型精度,发展和完善已有建模方法,设计与开发新的建模方法成为储层地质统计学的发展趋势。以荆州长江三角洲前缘河口坝为例,进行了河口坝界面储层建模方法研究。通过观察水槽实验的河口坝形态和不同期次的河口坝单元相互叠置关系,再结合河口坝几何形态数据,建立了河口坝关键界面数学函数。在此基础上,设计了河口坝界面建模算法,并实现了河口坝及其界面空间再现,为后续储层物性建模提供了界面框架。

The depth development of oilfields requires the establishment of a fine reservoir geological model .To improve model accuracy ,the improvement and development of the existing and new modeling methods have become the trend of reservoir geostatistics .A study of surface-based mouth bar reservoir modeling methods was studied with the example of Jingzhou Yangtze River delta front mouth bar .Through observing patterns of the mouth bar in flume experiments and stacked relationship between different stages of the estuary dam units with each other ,a mouth bar key surface mathemati-cal function was established combined mouth bar geometry data .On this basis ,a mouth bar surface modeling algorithm was designed to reproduce the mouth bar and its surface spatially .This research provides a surface framework for subse-quent reservoir property modeling .