基于模糊综合评判的剩余油分布定量描述  

Quantitative description of remaining oil distribution based on fuzzy comprehensive discrimination analysis

作　　者：孙梦茹[1] 

机构地区：[1]胜利油田有限公司胜利采油厂

出　　处：《油气地质与采收率》2005年第2期52-54,共3页Petroleum Geology and Recovery Efficiency

摘　　要：针对高含水后期非均质严重的油藏剩余油分布难以确定的问题,综合分析了影响剩余油分布的因素。在数 值模拟基础上,基于模糊综合评判理论,建立了模糊评判模型,提出了用于定量预测剩余油的新方法。结合胜坨油 田二区沙二段74单元的地质和开发资料,该方法在该区剩余油定量描述中得以成功应用,得到了各韵律层剩余油 分布的概率图。该方法具有推广至相似性质油藏的价值。Aimed at the difficulty in determination of remaining oil distribution in severe heterogeneous reservoir in the later stage of high water cut, factors influencing remaining oil distribution were analyzed comprehensively. A fuzzy discrimination model was built, and a new method to predict remaining oil quantitatively was put forward based on the numerical simulation and the theory of comprehensive fuzzy discrimination. Combined with the geological and production data in Es2 74 unit of No. 2 block in Shengtuo oilfield, this method has been successfully applied in the quantitative description of remaining oil of this block and got the probability graph of the remaining oil distribution of each rhythmic layering. This method is worth popularizing to similar kind of reservoirs.

关 键 词：剩余油分布 定量描述 模糊综合评判理论 模糊评判模型 高含水后期 综合分析 数值模拟 定量预测 胜坨油田 非均质 沙二段 概率图 韵律层 油藏 

分 类 号：TE327[石油与天然气工程—油气田开发工程] P618.130.8[天文地球—矿床学]