阿尔奇公式中饱和度指数影响因素及特征概述

Research progress on influencing factors of saturation index n in Archie formula

饱和度指数是预测含水饱和度的一个重要参数.它的影响因素很多.主要的因素有以下几个方面:微孔隙、润湿性,地层温度压力、地层水矿化度,颗粒粗糙度、成岩相、孔隙空间连通性,泥质含量,驱替顺序,驱替介质和频散特性.本文针对以上影响因素,简单概述各因素的影响特点及结果,并分析原因,给出实际应用建议.旨在为研究饱和度指数相关研究提供参考.

Saturation index is an important parameter for predicting water saturation.Many influencing factors exist.The main factors are as follows:micro pores,wettability,formation temperature and pressure,formation water salinity,particle roughness,diagenetic facies,pore space connectivity,shale content,displacement sequence,displacement medium and dispersion characteristics.Aiming at the above influencing factors,this paper briefly summarizes the influencing characteristics and results of each factor,analyzes the reasons,and gives practical application suggestions.The purpose is to provide reference for the study of saturation index.