双河油田Ⅷ-Ⅸ油组强水淹层细分评价方法研究

Method of Finely Evaluting Strong Water-flooded Zones for Ⅷ-Ⅸ Oil Group in Shuanghe Oilfield

针对双河油田Ⅷ-Ⅸ油组高含水期的强水淹层,利用岩心分析资料、测井资料、试油、试采资料,通过开展水淹机理实验研究,建立水淹层动态饱和度指数、胶结指数的模型。综合强水淹层岩性、产水率、孔隙结构及电性等细分标准,对强水淹层定性识别和细分定量解释研究,建立了Ⅷ-Ⅸ油组中厚油层强水淹细分解释标准。形成1套利用测井技术进行强水淹层细分精细评价的完整方法。

For Shuanghe oilfield Ⅷ-Ⅸ oil group with strong water-flooded zones in high water-cut stage, worked out are test researches of water flooded mechanism by core analysis, logging data, oil test and test information; set up are the saturation and bond index model for water flooded zones. Based on integrating strong water flooded finely-divided standards of lithology, water pro- duction rate, pore configuration and electric character, studied are the standards of qualitative identification and quantitative interpretation for strong water flooded zone. Then, established is a set of interpretation standards for thick oil layer in Ⅷ-Ⅸ oil group with strong water-flooded zones. Proposed is a complete set of methods from logging technology to evaluate the strong wa- ter-flooded layer.