利用核磁毛管压力曲线预测油藏原始含油饱和度

Reservoir originality oil saturation is the ratio of oil volume contrast with effective porosity in primitive state. It is an important index in evaluating reservoir productivity, calculating oil reserves and compiling exploitation plans. The main calculation procedures contain core directness mensuration, indirectness determination and computed by capillary pressure curve at present. In this study, we discuss these methods briefly, account the potential problems in practical application using these methods, Propose a new method of calculating reservoir originality oil saturation using NMR capillary pressure curves, analyse its characteristic and application foreground. find its good effect in practical application.