Triple-source has replaced dual-source as the norm for seismic because it provides better spatial crossline sampling for high-resolution imaging, or greater streamer separation and thus greater acquisition efficiency. The method is usually combined with continuous recording and overlapping shot records.
Most seismic surveys today deploy a triple-source setup. The introduction of this configuration has increased operational efficiency.
- Better crossline CMP sampling, for a given streamer separation, provides images with improved spatial resolution
- Permits wider streamer separation and overall spread width with no reduction in crossline sampling
- Enables reduction in deployed streamer equipment for the same streamer spread width and same crossline sampling