Abstract:

Classifying-formation from logging curves is a basic step in the course of automatic electro-facies analysis. This paper studies the method of automatic classifying-formation in a deep going way on the basis of thorough analysis of many normal methods, and uses max-minimum and variance technique to solve this problem. Taking S3formation of complex rocklitho profile in 08 well and other boreholes . The result shows that this method is not only easy, practical, but also fast in calculation and reasonable and accurate in classifying formation. Therefore it can be adopted for reference and applied in fine log facies analysis.

Key words: Electro-facies analysis, Computer classifying-formation, Loggingcurves, Max-minimum and variance