Figure 2.38: StagSeis configuration, with two multi- streamer vessels and three source vessels in a staggered configuration.
Figure 2.39: StagSeis improves illumination beneath complex overburdens compared with standard wide-azimuth. The StagSeis image shows improvements in clarity and detail. At the deeper levels, the image shows structure that was not previously visible, with improved continuity of subsalt horizons and better fault definition.
Figure 2.40: PGS’s Triton survey utilises five vessels in the ORION configuration. The survey is shot in three directions. The five vessels cover 50 square miles from the front of the source to the back of the streamer.
Figure 2.41: PGS’s survey geometry enables a 360-degree view of the complex structures found in Garden Banks and Keathley Canyon, a challenging, deepwater area in the Gulf of Mexico.
