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Fracture logging diagnosis method of low permeable reservoirs in Xinli Oilfield

WU Qiong,LIN Dong-ping,YU Chun-yan,ZHAO Cui-ping,HAN Ling (Xinli Oil Production Company of Jilin Oilfield Branch Company,Songyuan 131109,China)  
Fracture logging identification technique is an important technology which reservoir engineers focus on.At present,some new methods can be applied effectively,but they are still limited to widespread application because of the lack of data.Based on the research of some data,such as well logging data,production performance data and DST,this paper mainly analyzes log response characteristics of fractures in different methods as resistively logging,acoustic logging and diplog.Through the selection of logging parameters which reflect fracture characteristics,it analyzes and studies the fractures quantitatively by the methods of discriminate analysis,neural network and graph analysis.Graph analysis method is given as an example here.According to criterion established by the research on log response characteristics and graph analysis,this paper applies it in working site and determines a proper well logging diagnosis method.In conclusion,the study on this method will have important guiding significance for establishing scheme of water flooding and reservoir stimulation.
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