Evaluation And Application Of Logging Technological Series In Huaqing Oilfield

According to the sedimentary environment, diagenesis and structure, the low porosity&ultra-low permeability&low resistance reserviors in huaqing oil field are complicacy in pore structure type and log response. Reserviors are highly heterogeneity. So, logging series selection and evaluation is very important. Combine more than100wells and1025different kinds of reserviors logging evaluation effect analysis, it clarified that the method is best, good or nomal in each logging serise. It got that SP logging is the best in lithology logging series, DEN logging is the best in prosity logging series, and the best resistance logging is array induction logging. Moreover, some other logging methods have good effects in logging evaluation, like micro-resistivity imaging, NMR, dipole shear wave logging. It clarified the function and effect of each logging serise, and recommended some economical and practical methods. By the establishment of petro-physical facies effective thickness logging curves minimum standards, the rates classfication and evaluation criterion of oil&gas production, it enhanced the logging interpretation Accuracy and practical effect. Compare with oil testing results, each of them has a high compliance rate,84.6%/80%. It provide a reliable basis for reserves increasing and production.