测井饱和度解释模型发展及分析

为了认识目前测井饱和度解释模型的研究现状,为测井储集层评价时选择合理的饱和度解释模型提供基础性资料,在参阅国内外相关文献的基础上,根据模型提出的理论背景,将饱和度解释模型分为经典Archie公式、考虑泥质影响的饱和度解释模型、考虑骨架及多重孔隙影响的饱和度解释模型和非均质条件下基于网络导电的通用饱和度解释模型.除基本的Arehie模型以外,其他各类中均含有多种饱和度解释模型.其中考虑泥质影响的饱和度解释模型又进一步分为基于泥质等效体积的饱和度解释模型、基于泥质阳离子交换能力的饱和度解释模型、基于有效介质理论的饱和度解释模型.建议今后从理论数值模拟、岩石物理实验、饱和度模型的提出、模型参数物理意义的解释等方面进行更深入的研究.参36

Development and analysis of logging saturation interpretation models

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.