High-resolution velocity models
Derive high-resolution velocity and anisotropy models from seismic data using a two-way wave equation.
Narrow-azimuth broadband 3D survey data
The Four Point narrow-azimuth broadband 3D multiclient survey spans 417 Outer Continental Shelf blocks across three protraction areas and includes some of the most prospective acreage in the Norphlet play of the Gulf of Mexico. Primary exploration targets in this area are at depths of 20,000 to 35,000 ft, above a complex and highly variable autocthonous salt.
Understanding stratigraphic variability at the Norphlet level, which resulted from lateral variations in accommodation space caused by early salt movement, is a critical component of both exploration and appraisal activities in the play.
Sliding-notch broadband acquisition and imaging optimizes recorded bandwidth via slanted streamers and proprietary deghosting and is compatible with narrow-, wide-, and full-azimuth acquisition geometries. The technique addresses imaging issues that are common to this play by recording broader bandwidth data, optimizing the resolution required for deeper targets.
The Four Point broadband 3D multiclient survey data was acquired using this technique, employing
Advanced data processing technologies used to address the geophysical challenges present include