利用测井资料计算毛细管压力  

Calculation of Capillary Pressure Using Well Log Data

作　　者：伍增贵[1] 吴永彬[1] 张义堂[1] 

机构地区：[1]中国石油石油勘探开发科学研究院

出　　处：《新疆石油地质》2007年第5期607-608,共2页Xinjiang Petroleum Geology

摘　　要：提出了一种用测井资料计算、统计并回归出指数型毛细管压力曲线的简单实用方法。该方法认为,水沿水湿毛细管压力上升高度相当于油水过渡区中测井解释样本点距离过渡区底界面高度,从而把毛细管压力和测井解释样本点含水饱和度联系起来。在只有实验室测得的油水相对渗透率曲线而没有毛细管压力曲线的条件下,统计的毛细管压力模型可供油藏数值模拟借鉴使用。实际应用表明,该方法可以更好地拟合油井见水时间和产水动态。In order to explain the abnormal water production behaviors of some oil wells in bottom water drive reservoir, a simple and practical method is introduced to obtain exponential model of capillary pressure from log interpretation data by statistics and regression, The relationship between capillary pressure and water saturation is established based on the assumption that the height of water rise in a single capillary is equivalent to the height of log samples above the bottom of oil-water transition zone. The method is useful when there is relative permeability data while capillary pressure test data are unavailable. The .application of the model results in better match of water breakthrough time and water production performance.

关 键 词：毛细管压力 测井解释 油藏模拟 底水 锥进 

分 类 号：P631.84[天文地球—地质矿产勘探]