Comprehensive Well-logging Evaluation In Buried Hill Reservoir Of Shen 288 Block

At present, the main object of Liaohe oilfield exploration and development is gradually turning into the buried hill metamorphic complex lithologic reservoir. Buried hill has complex lithology and reservoir types, strong heterogeneity and difficulty of fluid identification. Therefore, the systematic and comprehensive logging evaluation of buried hill reservoir become necessary. For identifying the oil or gas reservoir in buried hill, new rules and interpretation standard were established using conventional and imaging logging data.In this paper, the method of lithology identification and classification standard was founded using conventional logging curve cross-plot method based on core mineral analysis. The quantitative evaluation was completed by imaging logging data. The method of reservoir identification and interpretation standard of different lithology was established by test data, lithology of reservoir, mud logging and core data. The terrestrial stress direction and fracture strike direction and distribution were founded. The distribution of lithology and reservoir was summarized in this area; the second interpretation and evaluation was conducted. A total of 108 layers were revised and 3 potential wells were proposed. This method can be used for reference for second interpretation and evaluation in similar reservoir.