This chapter presents two case studies where resistivity-tool-response modeling was applied for formation evaluation. Induction logs from one field were modeled for a number of deviated wells assuming that mud-filtrate invasion was negligible (i.e., by applying 1-D modeling). In the second example, laterolog (DLL) logs from another field show clear separation between the deep and shallow curves, indicating possible invasion. Therefore, 2-D modeling was applied in this case.
These two case studies are not meant to comprise an exhaustive set of examples for the application of resistivity modeling. They are simply the examples that were available for release at the time of writing.