泥质砂岩含水饱和度的求法

确定岩层的油气饱和度是测井解释的主要任务之一，砂泥岩储层是我国许多油田的主力产油层，研究砂泥岩储层的油气饱和度求取方法是非常有意义的。总结了主要应用于纯砂岩的阿尔奇公式，以及近年来比较通用、更能有效解决泥质导电问题的Waxman-Smiths公式、双水模型、双孔隙度解释模型和三水模型等。

Methods to Evaluate the Water - Satuation of Shaly Sand

Determination of the oil and gas saturation of shaly sand is the key work in well log interpretation. Shaly sand is the most important oil reservoir type for most of the oil fields in China. It is a significient thing to determinate saturation of shaly sand. In the paper, authors sum up some effective formulations, such as Archie formula , Waxman-Smiths method, dual-water model, dual porosity explanation model and tri-water model etc.