The first multi-client geohazard ultra-high-resolution 3D seismic survey is about to begin in the US Gulf of Mexico.
NCS SubSea Inc., Geotrace Technologies Inc., and SpecPartners Ltd. have announced the start date for a multiphase, large-scale innovative project called SAFE-BAND. It will be the first multi-client geohazard survey on a regional scale utilizing ultra-high-resolution 3D seismic (UHR3D), emphasizing the upper 1.0-1.5 seconds below the seafloor.
The survey will target the deepwater trend of Green Canyon, Ewing Bank, Atwater Valley, Mississippi Canyon, and Viosca Knoll.
Stafford, Texas-based NCS Subsea, which will provide acquisition services, says that the combination of P-Cable technology from San Jose, California-based Geometrics Inc., and NCS's own proprietary navigation system, NavPoint Trawler, produces excellent resolution of near-surface geological structures for geohazard imaging, 4D imaging, shallow reservoir imaging, and can be used for environmental safety mapping.
The SAFE-BAND P-Cable system includes: 18 x GeoEel solid streamers at 12.5m x-line spacing; 16 groups/streamer at 6.25m spacing; 12 phones/group providing > 5 octaves bandwidth; sample interval up to 0.125msec; towing depth of 4m; and a single 210cu. in. GI gun source.
Houston, Texas-based Geotrace Technologies will process the data. The company recently launched its proprietary HDBand suite of deghosting techniques, which focuses on recovering low and high frequencies to produce cleaner, sharper, and higher resolution seismic data, especially in marine reservoir applications.
HDBand works with other techniques such as Q compensation and spectral whitening, and can be used to compensate for seismic attenuation and improve seismic resolution for structural and stratigraphic interpretation, inversion, an reservoir characterization.
UK-based SpecPartners will provide G&G services and marketing.
The partners secured industry underwriting and acquisition starts 1 June 2014.
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