孤岛油田馆6砂组稠油油藏油水层判别研究

Discrimination on oil-water zones of heavy oil reservoir in Guan 6 sands of Gudao Oilfield

孤岛油田馆6砂组油藏属岩性构造层状油藏,储层非均质性强,油水关系复杂。文中总结了利用测井参数交会图法、测井多信息多元统计法和灰色理论判别分析方法识别油水层的方法原理,制定出了相应的油水层判别标准,在孤岛油田馆6砂组得到了很好地应用,其结论与实际资料相一致。

The reservoirs in sixth sands of Guantao Formation,Gudao oilfield,is a lithologic-structure layered oil pool.The reservoir heterogeneity is serious,and the relation of oil and water is complicate.Since Gudao Oilfield came into the stage of high water cut,the oil layer is waterflooded seriously,the remaining oil is scattered,and hence the research of the reservoir discrimination as an important content of reservoir description becomes more and more important.This article summarized the methods and principle of identifying oil reservoirs by the methods of log parameter cross-plot,logging information multivariate statistics and grey theory discriminatory analysis,and draw up the standard of oil reservoir discrimination.The result of application is basically conformed to that of well testing result,the methods have a great potential of application and practice meaning.