多次储层随机建模与砂体预测符合率  

Multi-stochastical realization of reservoir modeling and conformation rate of sandbody prediction

作　　者：薛家锋[1] 王家华[2] 祖小京[3] 席国兴[3] 陈炳峰[3] 

机构地区：[1]大庆石油学院,黑龙江大庆163511 [2]西安石油大学,陕西西安710065 [3]大庆油田有限责任公司,黑龙江大庆163511

出　　处：《石油学报》2003年第5期79-83,共5页Acta Petrolei Sinica

基　　金：国家重点基础研究发展规划 (973)资助项目"大规模提高采收率基础研究"(G1 9990 2 2 50 )部分研究成果

摘　　要：利用储层随机建模的指示模型 ,以大庆油田一个地区的 2 2 2口井测井资料求取的岩相单元资料为依据 ,用多个随机种子分布求取的储层随机建模的多个实现 ,对该地区岩相单元空间分布进行了预测。从检验储层随机建模砂体预测的精度的角度 ,对砂体预测符合率进行了定义 ,并研究了随机建模砂体预测符合率和随机建模岩相单元比例的预测值。利用这两个概念 ,可以从储层随机建模的岩相单元空间分布的多个实现中选择出最合理的岩相单元。该方法具有较高的砂体预测符合率 。The multi_stochastical realizations of reservoir stochastical modeling with indicator model were used to predict the spatial distribution of lithological units with data gotten from 222 wells in a mature area of Daqing Oilfield.In the view of the inspection of prediction precision,the conformation rate of sandbody prediction was defined with stochastical modeling,and the prediction value of lithology unit proportion was studied.The multiple realizations of spatial distributions of lithological units were optimized with the two standards.The conformation rate of this approach is obviously higher than that of usual method.This method is available specially to mature oil fields with dense well nets such as Daqing Oilfield.

关 键 词：储层 岩相单元 多次随机建模 砂体 预测 符合率 

分 类 号：TE319[石油与天然气工程—油气田开发工程]