利用Simpat模拟河流相储层分布  

THE FORECASTING OF FLUVIAL FACIES RESERVOIR DISTRIBUTION BY USING SIMPAT

作　　者：尹艳树[1] 吴胜和[2] 翟瑞[2] 田永强[3] 

机构地区：[1]长江大学地球科学学院,湖北荆州434023 [2]中国石油大学资源与信息学院,北京昌平102249 [3]长庆油田分公司勘探事业部,陕西西安710021

出　　处：《西南石油大学学报（自然科学版）》2008年第2期19-22,共4页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家自然科学基金项目(40572078)

摘　　要：在对河流相储层随机建模中,再现河道连续弯曲的形态是研究重点,也是检验随机建模方法适用性的一个标准。对新发展的多点地质统计学建模技术中的Simpat方法进行了介绍。指出Simpat虽然考虑多个空间点来再现储层形态,但是在条件数据点较少情况下,随机数据模式的选择导致河道连续性仍然存在一定的问题,需要在数据模式选择中充分考虑地质约束。对Simpat进行了改进,通过引入河道中线模型对数据模式选择进行约束,较好地解决了河道连续性再现问题。对大港油田二区六区块明3-5-1储层建模分析表明,改进后的Simpat方法能够更好地再现河道连续性及分布特征。In the construction of reservoir models of fluvial deposits,the channel shape is always the most important aspect and a criteria for the evaluation of the efficience of the modeling methods.The Simpat,which belongs to the newly developed multiple-point geostatistics method,is introduced and its shortcomings of reproduction of discontinuity channel is analyzed.The stochastic selection of data patterns results in this continuity.A constrained method for the selection of data patterns is proposed and integrated into Simpat.The reservoir model of Ming 3-5-1 is constructed by using the improved Simpat and non-improved Simpat in the NO.6 block in No.2,Dagang Oilfield respectively.The result shows that the improved Simpat reveals the channel shape and its distribution better than the non-improved Simpat does.

关 键 词：多点地质统计学 Simpat 改进 河流相储层 大港油田 

分 类 号：TE319[石油与天然气工程—油气田开发工程]