June 2018 | Seismic monitoring over deep water fields (P-Cable for Shell, GoM)

P-Cable for time-lapse seismic monitoring - P.Hatchell et al (Shell) at EAGE 2018

Shell acquired high resolution 3D and 4D streamer seismic data over three deep water fields. The resulting data show that HR3D images can be obtained at reservoirs located up to 2000 m below the seafloor in deepwater environments. An additional 2D test of the system demonstrated a time-lapse repeatability of NRMS=15% in zones where the reservoirs lay above the first water bottom multiple. This work suggests that HR3D surveys are suitable for low-cost time-lapse seismic monitoring of deepwater reservoirs and geohazards that are shallow relative to the water depth.

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