Application Of Oilfield Well Log Interpretation Techniques To The Cerro Prieto Geothermal Field

This paper presents the application of oilfield type well log analysis to the Cerro Prieto Field, Mexico. The lithology in this field is relatively similar to oilfield systems. The suite of logs available for the four wells analyzed consist of DIL, FDC-Gamma Ray, CNL, and Saraband. Temperature data about the wells are sketchy, and the logs had been run under pre-cooled mud condition. In the absence of some key parameters, we devised a system of interpretation using a combination of graphical and numerical studies to study the logs. The results show that the computed wellbore data are significantly different than the recorded data on the log heading. The trend analysis of the conductivity log may lead to the establishment of the onset of the hydrothermally altered zone.