We present a fast “structure”-based inversion workflow for interpreting marine Controlled Source Electromagnetic (mCSEM) data, which reconstructs the resistivities and shapes of regions of interest using an inversion algorithm where the model is parameterized using both open and closed “structures”. These a priori information may come from independent measurements (e.g., seismic) or from the results of an image-based inversion workflow. We show that the “structure”-based inversion is capable of quantitatively reconstruct the resistivities and shapes of the regions of interest such as prospective reservoirs to obtain models that are consistent with both the mCSEM and the seismic data and that considerable improvement in resolution is achieved compared to the current state-of-the-art. We illustrate the advantages and drawbacks of the “structure” inversion using both synthetic and real data acquired in the Santos Basin, offshore Brazil.


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error