Bulls-Eye - Simple Resistivity Imaging to Reliably Locate the Geothermal

Abstract

This Paper Presents Interpretations of Mt Surveys from a Number of Geothermal Fields in Steep Terrain, Where the Geophysical Interpretation Can Be Constrained by Data from Deep Exploration or Production Wells. One Particular Anomaly, Namely the Shape of the Base of the Conductive Layer Overlying the High-Temperature Geothermal Reservoir, Strongly Correlates with Well Temperatures and Even Well Productivity. the Proposed Interpretation Method is Simple and Does Not Require Particularly Sophisticated Analysis Techniques or Computing Power. It Does Not Even Require Particularly Highquality Mt Measurements, and Has Given Good Results with 10-year Old Data. as Long as the Initial Survey is Welldesigned and Executed, the Method Gives a Clear ìbulls-eyeî Target That Reliably Locates the Geothermal Reservoir.