Chang 8 reservoir in Huanqing block developed low-resistivity oil zone of which vertical distribution relationship of reservoir fluid was complex,gravity differentiation of oil and water was weak,reservoir heterogeneity was strong and reservoir formation was mostly hidden,reservoir fluid property was hard to define.Accurate identification of fluid property of low-resistivity oil zone was of great significance to the next exploration of Huanqing block.According to the characteristics of low-resistivity reservoir,by studying the fluid i-dentification method of Chang 81 low-resistivity oil zone,this paper established a convention-al logging qualitative identification method suitable for low-resistivity oil zone in Huanqing block,which improved logging interpretation accuracy and interpretation coincidence rate.
维普
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