The Santos Basin marine Controlled Source Electromagnetic (mCSEM) data were acquired as part of a co-operation project between Petrobras and Schlumberger to assess the integration of deep reading Electromagnetic (EM) technologies into the full cycle of oil field exploration and development. Multi-component electric and magnetic fields data were recorded. All fields at each receiver location were processed and interpreted using an advanced integrated workflow. The main objectives of the survey were to calibrate mCSEM over known reservoirs, quantify the anomalies associated with those reservoirs with the expectation that new prospective location(s) could be found. We show that the mCSEM response of the known reservoirs yields signatures that can be imaged and accurately quantified by new processing and interpretation procedures. A further initiative was to advance the state of the art in integrated interpretation and establish guidelines toward the development of an industry standard workflow unavailable at present.


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