一种快速识别和求取过滤电位的方法及在低孔低渗油田的应用  

A method of quickly discerning and calculating electrofiltration potential and its application in low porosity and low permeability oilfield

作　　者：燕军[1] 刘诗琼[1] 刘正锋[1] 

机构地区：[1]西南石油学院,四川南充637001

出　　处：《特种油气藏》1997年第4期6-9,共4页Special Oil & Gas Reservoirs

摘　　要：方法根据自然电位测井基本原理，提出一种在不知道地层压力、流体粘度、过滤电位系数的条件下，快速识别和求取过滤电位的方法。目的校正自然电位数值，求准地层水电阻率。结果建立了快速识别和求取过滤电位的图版。结论在过滤电位识别图版上，若趋势线过原点则认为无过滤电位；反之．则趋势线在纵坐标上的截距即为过滤电位值。Method According to the basic principle of spontaneous potential log, this paper putsforword a method of quickly discerning and calculating electrofiltration potential withoutknowing of formation pressure, fluid viscosity, and the coefficient of electrofiltration potential. Purpose To correct the value of spontaneous potential, and to determine formationwater resistivity. Result The chart for quickly discerning and calculating electrofiltrationpotential is set up. Conclusion On the discerning chart of electrofiltration potential, if thetrend curve crosses the initial point, it will be considered no electrofiltration potential exists.Conversely, the Intercept of trend curve on the vertical coordinate will be the value of electrofiltration potential.

关 键 词：地层水电阻率 低渗透油田 过滤电位 测井解释 

分 类 号：TE348[石油与天然气工程—油气田开发工程] P631.84[天文地球—地质矿产勘探]