SEGJ Technical Conference

Applicability of ultra-high-resolution 3D seismic data for geohazard identification in the Gulf of Mexico

Abstract Preliminary results from data collected along mid-slope depths in the northern Gulf of Mexico are very promising in regard to applicability of short offset, ultra-high-resolution, three-dimensional (UHR3D) seismic methods in the detection and delineation of geohazards. Penetration of greater than 2s two way travel time blow seabed was achieved with a 3D streamer system comprising 18 streamers that were 100m in length and a 210in3 GI air gun. Apparent subsurface horizontal resolution is in the order of 16m, and vertical resolution is as high as 1.6m. Seafloor resolution is consistent with the natural bin size of 3.125m x 6.25m.