Spotlight on New Technology Awards
WesternGeco,
a business unit of Schlumberger
Booth # 4143
Coil Shooting
Coil Shooting acquires full-azimuth (FAZ) marine seismic data continuously with a circular geometry using only a single seismic vessel.
Coil Shooting takes geophysics further by enhancing current multi- and wide-azimuth (MAZ and WAZ) acquisition techniques. MAZ and WAZ are proven methods of seismic acquisition for complex geological areas. The MAZ technique involves shooting a survey several times with one vessel, each experiment being on a different heading. The WAZ technique involves acquisition with a number of source and recording streamer vessels. In both cases the result is better illumination, higher signal-to-noise ratio, and improved seismic resolution compared to traditional 3D methods. However, Coil Shooting enables complex FAZ 3D surveys to be efficiently acquired using only one vessel.
By sailing in overlapping circles, a very large number of shot/receiver positions can be created and a single source/receiver boat can produce unprecedented offset and azimuth sampling which leads to higher quality images with superior noise suppression. Using Q-Marine technology means that it is possible to sail in circles while maintaining constant streamer separation and achieving accurate receiver positioning. Coil Shooting is therefore not only extremely efficient, but it also delivers data that addresses some of the challenges of imaging complex geologies.
