GGS-Spectrum Completes Phase 1 of 'Big Wave'

GGS-Spectrum says it has completed Phase 1 of its Big Wave Multi-Client seismic survey in the Eastern Gulf of Mexico. The acquisition of Phase 3 of Big Wave is ahead of schedule with more than 11,000 km of data now being processed.

Big Wave is being acquired in advance of the lease sales in the region scheduled for late 2008 and early 2009. Both Phase 1 and Phase 3 of the survey have attracted substantial oil company interest and pre-funding which is expected to increase as the lease sales get closer.

The 30,000 km 2D seismic survey includes:

  • 10,000 kms of seismic data for Phase 1 was acquired offshore West Florida and was completed in August 2007, with processing to finish in September 2007.
  • 11,000 kms of seismic data for Phase 3 has been acquired and is currently being processed.
  • 9,000 kms of remaining Phase 3 data will be acquired by the end of 2007.
  • Derek Skoyles, President of GGS-Spectrum USA, comments:

    Big Wave is the first modern seismic survey to cover the Lloyd Ridge, Henderson and Florida Plain areas of the Eastern Gulf of Mexico. Initial interpretation of the Phase 1 data shows excellent geological structures and a substantial thickness of sediments.

    We are very excited about the Big Wave multi-client survey not only because of the excellent hydrocarbon prospectivity of the Eastern Gulf of Mexico, but also because the region is widely-considered to be one of the few remaining accessible frontier petroleum provinces in USA."

    David Rowands, Director GGS-Spectrum UK adds:

    "GGS-Spectrum's multi-client survey experience around the world and our data-processing capabilities in Houston will enable companies to better understand the geology and prospectivity in the Eastern Gulf of Mexico in advance of the forthcoming lease sales.

    Our PSDM technology has proved to be effective in imaging areas around salt bodies which is of particular interest because of the many salt sections in the region. The results are consistent with the excellent reputation our processing centres have built around the application of PSDM."

    GGS-Spectrum acquired the Big Wave data with a 10 km streamer and to a record length of 14 secs. Processing is being undertaken at GGS-Spectrum's seismic processing centre in Houston, Texas with pre-stack time (PSTM) and pre-stack depth migration (PSDM) sequences. The GGS-Atlantic is being used to acquire the seismic data.


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