塔河油田奥陶系储层油水空间分布规律探索

Oil-water equifer principle in space research on Ordovician reservoir in Tahe

奥陶系储层流体的存储空间和流动通道主要是次生溶洞和裂缝,这些裂缝往往经过溶蚀改造,故可以形成很高的产能。由于这些次生缝、洞在空间分布上的不均匀性,造成流体的不均匀分布,并且形成一系列相互间不连通的多个油水系统,给油田开发工作带来巨大困难。为了寻找油、水在空间上的分布规律,本文从流体的储存空间——缝、洞的分布入手,通过缝洞单元的划分研究其连通性,进而探索油、水的空间分布特征。利用测井、测试和采油等资料,研究油、水的来源,为开发工作提供有益的参考资料。

The major storage space and fluid channel of Ordovician reservoir is hypogenous fracture-cavern. It can make high production after erodent buildup. As various aniso-distributing of these hypogenous fracture-cavern in reservoir body caused aniso-distributing fluid, more then made a series of uneonneetive equifer systems, it＇s difficult to product. In order to discover the principles of oil-water shape in reservoir, this paper showed that it set off space distributing principles of oil-water from fluid＇s fracture-cavern distributing to researching fracture-cavern unit connectivity. Studying the source of fluid from logging testing product data and benefit product development.