摘要
在淡水水淹的地层中,由于注入水的电阻率大大高于原生水电阻率,使新打的调整井水淹层的电阻率很高,有时甚至超过油层的电阻率。利用常规测井解释方法,往往把水淹层解释为油层,这主要是由于水淹层内的地层水电阻率求不准。为解决这一问题,提出了一种利用自然电位(SP)曲线直接求水淹层内地层水电阻率的方法。
In fresh water flooded formation, because the resistivity of injection water is much highter than of raw water, the resistivity of flooded layers in a new-drilled adjustable well becomes very high, sometimes even higher than the resistivity of oil layers. The flooded strata are often wrongly interpreted as oil layers by use of conventional log interpretation, mainly due to the formation water resistivity can not be determined accurately. Therefore, a method, which determines the resistivity of formation water in flooded layers with SP log, is given in this paper.
出处
《测井技术》
CAS
CSCD
1992年第2期142-146,共5页
Well Logging Technology
关键词
自然电位测井
地层水
地电阻率
Spontaneous Potential Log
Log Interpretation
Formation Water
Formation Resistivity
