Japanese CSEM Gas Hydrate Survey Completed

Ocean Floor Geophysics (OFG, Canada), in cooperation with Fukada Salvage and Marine Works (Fukada), has completed a high-resolution controlled source electromagnetic (CSEM) survey of near-surface gas hydrates using the Scripps Institution of Oceanography Vulcan system for the National Institute of Advanced Industrial Science and Technology (AIST) in Japanese waters. The survey comprises over 500 line kilometres of high-resolution data collected using the Fukada vessel Shin Nichi Maru.

Water depths were from 400 to 1,100 metres. A 3D inversion of the EM data for an area of interest has been completed. The contract for the 3D inversion of the data for the entire survey area has also been awarded to OFG and will be completed in November this year. Fukada Salvage and Marine Works acted as prime contractor.