Abstract

Controlled Source Electromagnetics (CSEM) provides a powerful tool for the risk mitigation process. This study gives a case example for the application of CSEM to reduce risks in drilling decisions. It underlines the importance of using all available resistivity information in the form of well logs as well as existing CSEM data in the integration, including the interpretation of the inversion results. A discussion of the integration is performed, taking into account the uncertainties in the assumptions for different parts of the subsurface, and shows how the ranking of the prospects, based on CSEM data, is interwoven with the perceived uncertainties. Drilling results yielded a commercial hydrocarbon discovery for one of the highest-ranked targets.