Abstract: This study presented in-depth analysis of Gauss cut-off modeling algorithm, a conventional phase modeling algorithm, in which new understanding of developing local pseudo gauss field was given, that is using phase vertical frequency curve to develop pseudo gauss field in Gauss cut-off modeling algorithm,hence correction of the limitations of it was made. And new flow of Gauss cut-off modeling was provided with an example of its application.

Key words: geologic data, geologic model, simulation, distribution, Cainan oilfield