常规测井资料解释含油饱和度的厚度参数校正

Thickness Parameter Correction on Interpreting OilSaturation with Conventional Well Logging Data

毕研斌¹ 石红萍²

中国石化石油勘探开发研究院 大庆油田技术培训中心

Petroleum Explora tion & Production
Research In stitute, S INOPEC, Be ijing 100083, China

 　 含油饱和度是计算油田储量、编制油田开发方案、评价水淹层的基本参数之一。在目前我国大部分油田,尤其东部老油田相继进入高含水后期开采阶段以后,含油饱和度解释工作显得更为重要。在多种电性参数对比的基础上,优选深侧向电阻率作为含油饱和度解释的基本参数,并建立了解释模型。电阻率经厚度因素校正后,含油饱和度解释取得了比较理想的效果,尤其是薄油层的解释精度有了很大提高。解释结果对比表明,文章所提出的厚度参数校正方法是可行的。

Oil saturation is one of the main reservoir parameters in
calculating petroleum reserve, p lanning oilfield development
p rogram and evaluating flooded zones. At p resent, most of
oilfields, especially eastern oilfields in china, step into the
period of high water bearing, so it gets the more important
work to accurately interp reting oil saturation. Base on
contrasting several electric parameters, this paper screens the
deep lateral logging resistivity to interp reting oil saturation,
and builds itsmodel. Interp retation accuracy of oil saturation
in oil bearing formation, especially in thin reservoir, is
greatly imp roved as resistivity is corrected by formation
thickness. The interp retation result shows that the parameter
correction method of resistivity and the interp retation model of
oil saturation fit into reservoir development.