求解含水饱和度的一种方法

A Method of Calculating Water Saturation

含水饱和度和孔隙度、渗透率、自由水面以上含油高度、地下油水密度、界面张力等参数之间有定性或定量的关系。文中提出了一种利用毛管压力资料,根据油藏物性参数及含油高度求解含水饱和度的方法,并用该法解释了埕岛油田埕北151等井东营组的含水饱和度,取得了较好的效果。

There are some qualitative or quantitative relationships among the parameters of water saturation, porosity, permeability, oil column height above free water surface, densities of oil and water in-place, boundary tension. A method is presented which can be used to calculate water saturation using the date of capillary pressure, physical parameters of reservoir and oil column height. The water saturation of the Dongying formation in the locations of Chengbei 151 well and other wells in Chengdao oilfield are figured out with much satisfaction.