Seabed logging is an emerging technology that measures subsurface resistivity prior to drilling. The technique has been commercially available for over 5 years, and has been proven to reduce drilling risk in many offshore geologic environments.

Electromagnetic scanning is a new application of this proven technology. Sparse spatial sampling and wide azimuth geometry can be used to apply seabed logging to find and accelerate delivery of new prospects in frontier areas.

In this paper, we evaluate the costs and benefits of various geometries and show results from the Campos basin in Brasil.

Keywords:
well logging, anomaly, detection, Upstream Oil & Gas, electromagnetic prospect, prospect, survey design, log analysis, seismic data, acquisition geometry
Subjects:
Reservoir Characterization, Formation Evaluation & Management, Seismic processing and interpretation, Open hole/cased hole log analysis
Copyright 2007, Society of Petroleum Engineers
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