Challenges in Shallow Water CSEM Surveying: A Case History From Southeast Asia

CSEM survey in marginal water depths and complex<br>geological setups poses several challenges due to the<br>interference of airwave with electromagnetic field and the<br>background resistivity variations. Recently, PETRONAS<br>conducted a pilot marine CSEM survey in Southeast Asia in<br>relatively shallow water depths. We present here the<br>challenges encountered and the methodology adopted in<br>analysis of CSEM data and the value addition achieved<br>through the survey.