灰色系统评价特低渗透油藏方法研究及应用

Method research and application of gray system in evalua ting extra-low-permeability oil reserviors.

从安塞油田王窑、侯市、杏河区块长6非均质特低渗透岩性油藏出发,利用灰色系统评价预测长6油藏有利区。在分析长6储层分类评价参数、分布范围、标准、权值及处理方法的基础上,综合和归纳了多种信息,精细评价和预测了多个有利区块,为合理选择该区油田开发决策方案提供了可靠的地质依据。

In this paper, the method of gray system is studied and used in evaluating the favorable area of Chang 6 oil reservois with heterogeneous and extra-low permeability lithology in Wangyao, Houshi and Xinghe of Ansai oilfield. Evaluation parameters of classification, distribution range, criterion, weight value and processing method in Chang 6 reservoirs are analyzed. On the basis of synthesizing and generalizing many kinds of data, ten favorable areal reservoirs are evaluated and predicted finely. It may provide credible geological evidence for determining the reasonable exploitation projects.