温米油田水淹岩心饱和度分类校正方法研究  

Research of Waterflooded Core Saturation Correction Method by Classification in Wenmi Oilfield

作　　者：吴迎彰 张杰 姚军朋 

机构地区：[1]中国石油集团测井有限公司,陕西西安710077 [2]中石化胜利石油工程有限公司地质录井公司,山东东营257000

出　　处：《长江大学学报（自科版）（中旬）》2015年第12期37-40,4,共4页Journal of Yangtze University(Nature Science Edition)

摘　　要：分析了温米油田常规密闭取心岩心分析饱和度的主要影响因素,在区分岩心水淹程度的基础上,利用储层品质指数正态概率图,将同一水淹级别的岩心进行物性分类,依据饱和度损失程度的不同拟合出岩心分析饱和度的线性方程,由方程的斜率和截距得到油、水饱和度校正系数,从而得出岩心原始油、水饱和度。将结果和相对渗透率试验拟合出的束缚水饱和度代入驱油效率方程,与试油结论相比,符合度较高,说明该方法具有较高的准确性。The main influential factors of the saturation in closed core analysis in Wenmi Oilfield were analyzed,on the basis of identifying the degree of waterflooding,the normal probability plot of reservoir quality index was used to classify the physical property of cores with the same waterflooded grade,fitting out the linear equations of core saturation according to the different damage levels of cores,the saturation correction factors of oil and water were obtained from the slope and intercept of the equation,thereby the original oil and water saturations were derived.The relative permeability experiment is used to fit out bound water saturation equation,which is substituted into the equation of oil displacement efficiency with the result of saturation calibration,comparing with the well testing result,it indicates that this method has high accuracy.

关 键 词：密闭取心 饱和度损失方程 校正方法 降压脱气 

分 类 号：P631.84[天文地球—地质矿产勘探]