【摘要】 等量油气在不同孔隙度的储集岩中 ,其充满程度不同 ,孔隙度大 ,则充填程度低 ,使得含油饱和度低 ;反之 ,含油饱和度则高。因此 ,利用储岩热解技术 ,求取储层中的岩石含油饱和度 ,确定其与孔隙度的关系 ,可建立新的油水层判识方法。该方法的关键是选准储层原油密度。塔里木盆地中质原油的实验结果与实际情况相近。因轻质油在地面易挥发 ,所以不宜使用该方法进行判识。更多还原

【Abstract】 If equal amount of oil is distributed in reservoir rocks with different porosity,the oil packing degree in the pore is different. The porosity is larger,the packing degree is lower and the oil saturation in reservoir rock is lower whereas the saturation is higher. So a new method for distinguishing oil and water intervals can be obtained through acquiring the oil saturation in reservoir rock with rock-eval and setting up the relation between oil saturation and the porosity. The key step is to get exactly the density of reservoir oil.Test result of moderate density oil in Tarim Basin are similar to the real situation. The method is not suitable for bearing light oil because it is volatile on the ground.更多还原