Development and analysis of logging saturation interpretation models

Abstract

In order to understand the research situation of saturation interpretation models,and to offer some basic information for the well logging reservoir evaluation,this paper summarizes saturation interpretation models frequently used throughout the world,discusses the characteristics and development tendency of the saturation interpretation model research,and offers some advice for the future research.Based on theoretical background,the saturation interpretation models are divided into four types: classical Archie formula,saturation interpretation models considering shale effects,saturation interpretation models considering the effects of conductive mineral and multi-porosity,general saturation interpretation models based on the network conduction theory in heterogeneous rock.Except for the classical Archie formula,there are a variety of saturation models in the other types.The saturation interpretation models considering shale effects are subdivided into three kinds based on argillaceous equivalent volume,argillaceous cationic exchange capacity,and effective medium theory.