New OBC combines seismic, EM sensing

MultiField Geophysics has completed successful field tests of ocean bottom cable technology that combines seismic with electromagnetic sensors.

Offshore staff

BERGEN, Norway MultiField Geophysics has completed successful field tests of ocean bottom cable technology that combines seismic with electromagnetic sensors.

The tests, over Peon offshore Norway, involved deploying a series of seabed sensor segments to acquire EM and seismic data. The proprietary EM source, towing a horizontal electric dipole was used to transmit various GPS synchronized arbitrary waveforms. Data were acquired and compared with a reference station deployed to monitor the spread, and acoustic data collected simultaneously on selected acquisition lines.

Preliminary processing by MultiField successfully delineates the gas field. On this basis, the first full-scale commercial application is expected in 1Q 2009.

MultiField Geophysics is backed by Wavefield Inseis ASA, StatoilHydro Venture AS, and the Norwegian Geotechnical Institute.

07/01/2008

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