Integration of Electromagnetic and Seismic data to improve sub-salt and sub-basalt imaging

Abstract

This thesis investigates how the marine Controlled Source Electromagnetic (CSEM) method and the marine MagnetoTelluric (MT) method can be used in combination for subsurface imaging in the presence of basalt and salt. A second aspect of this thesis is the integration of electromagnetic data with seismic- and other geophysical data to improve subsurface imaging and geological model building.

The focus lies on finding new ways of applying and integrating existing processing and imaging techniques to measured data, rather than developing new processing or inversion algorithms. This study evaluates several marine CSEM and MT data sets, that were inverted individually and jointly to reconstruct subsurface resistivity models. The resulting models are then analysed both quantitatively and qualitatively.