Xinjiang Petroleum Geology ›› 1998, Vol. 19 ›› Issue (5): 421-423.

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APPLICATION OF “CORE CALIBRATION METHOD"IN LOG INTERPRETATION MODEL

Zhao Jun, Chen Fuxuan, Yan Jun   

  1. Southwest Petroleum Institute, Nanchong, Sichuan 637001
  • Received:1997-10-22 Online:1998-10-01 Published:2020-09-19
  • About author:Zhao Jun, Lecturer, Geophysical Logging

Abstract: Based on core analysis, quanti tative log interpretation model with“core calibration"wasestablished, which canenhance accuracy of log interpretation, and is significant for reservoir description and oil/gas layer evaluation.This paper presented that depth homing of core analysis data, matching of data and interpretaing, correcting and standardization of log curves should be made before log interpretation model corresponding to physical parameter was established.According to geologic condition of Qiuling oilfield in Turpan-Hami basin, the models for porosity, shaliness and permeability were established based on density, neutron porosity, sonic logging curves and gamma ray and natural gamma ray spectrometry logging curves; the model for oil saturation interpretation of sandstone reservoir established with Archie formula.The practices of these models in Qiuling oilfield were correlated with available oil testing data, with accordance of 91.4 %.

Key words: Core, analysis, Calibration, Log, interpretation, Model, Application