A method is disclosed for generating an image of earth formations penetrated by a wellbore. The method includes generating an initial model of the earth formations using formation resistivity measured by a direct current signal. A response to the initial model of an instrument used to make the direct...http://www.google.de/patents/US6670813?utm_source=gb-gplus-sharePatent US6670813 - Integrated borehole system for reservoir detection and monitoring
