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Using well logging data to determine resistivity of mixed fluid in water flooded layer of Daqing Placanticline

WANG Mei-zhen,YU Jun (Reservoir Evaluation Department of Daqing Oilfield Company Ltd.,Daqing 163453,China)  
SP logging is one of logging methods which can effectively distinguish resistivity of mixed liquid in formation after oil layer being water flooding.After that,by using SP curve to obtain the resistivty of formation mixed liquid,correction methods for various effective factors of SP logging are given,and effects of filtration potential and argillaceous content on SP logging and correction methods are discussed.Based on actual data processing and analysis data comparison for oil testing water in individual layer,the results show that this method can effectively obtain resistivity value of formation mixed fluid.
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