Paper Summary
This paper presents a novel acquisition design and image processing using the latest Multi-Parameter Full Waveform Inversion technology (MP-FWI). The acquisition was optimized to capture the required wavefield sampling, in terms of primaries, ghosts, multiples and diving-wave refracted energy. A key point was to design a densely and well sampled acquisition that indeed captured all of the wavefields and as much reflected energy as possible in all azimuths with both short- and long-offsets. The final setup involved four sources towed inside a 12-streamer dense setup with negative -250m offset. This design is capable of delivering an almost even sampled shot-carpet as well as provide full azimuth zero -offset coverage. As the streamers were 4km long, offsets of up to 3750m was captures which are important for AVO work in this area of the Barents Sea. MP-FWI imaging has been used to simultaneously determine velocity and a variety of subsurface attributes, such as anisotropy, relative density, reflectivity and even angle-dependant reflectivity for AVA analysis.