Electromagnetic (EM) and Magnetic Survey
OFG has particular expertise in the operation and interpretation of Electromagnetic and Magnetic surveys. OFG is an experienced user of advanced electromagnetic and magnetic field inversion codes.
Vulcan EM System (developed by Scripps Institute of Oceanography)
• The towed EM streamer provides continuous mapping without the need for deployed seabed node receivers.
• The operating advantage of this system is that it can be containerised and mobilised throughout the world onto vessels of opportunity, and data acquired as a complementary dataset with other geophysical or geotechni-cal surveys
• Applications are focused around the system’s ability to provide improved near-surface imaging, in particular where seismic is not providing sufficient discrimination, associated with the methane hydrate layers, pods, associated gas structures and shallow hazards