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3D Inversion of Vertical Dipole - Time Domain CSEM data
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
The EM code of Newman and Commer can be used for inversion of the time domain vertical dipole data of Petromarker. A depth gradient weight function has been calibrated to obtain the original target depth in the inversion. The main goal of the 3D inversion development is to combine all the measurements in an offshore survey so the data fit a resistivity model.
A synthetic data example is presented where the inversion use forward modelled data from a reservoir case. The inversion recovers the depth and horizontal size of the reservoir.
The inversion code has the potential to improve subsurface imaging by geometrical averaging over all transmitter/receiver combination in a survey, and to include seabed topography and known stratigraphic horizons.