Electrical Resistivity Primer

Outline Motivation Geophysical Imaging Subsurface Electrical Properties The Electrical Resistivity Method Surveys and Data Display Timelapse Electrical Resistivity

Summary Primer objective Primer contents Navigation Disclaimer Acknowledgements Copyright and use Contact/Comments Summary Motivation Approaches Non Invasive Imaging Time Lapse Imaging Summary What is a geophysical image? Where does an image come from? Image Interpretation Non Uniqueness Summary Electrical properties of rocks and soils Dependency of electrical properties on common soil properties Ranges of soil electrical properties Summary Basic resistivity measurement Field measurements Survey Basics Instrumentation Naming conventions Summary Surveys Sounding Profiling 2D profiles Common geometries Data display: pseudo sections 3D surveys Summary Timelapse concept Data processing Result interpretation Feasibility Assessment

Contact/comments

We welcome questions on timelapse electrical geophysics or comments on this primer (either positive comments or suggestions for clarification/enhancements). Please send both questions and comments by email to Roelof Versteeg at roelof.versteeg@subsurfaceinsights.com