Comparing Basin Modeling to Velocity Modeling for Predicting Pressures in Deep Columbus Basin, Trinidad

Improving sub-salt imaging using 3D basin model derived velocities

“…Modern multi-dimensional basin modeling software packages capture most mechanisms causing abnormal fluid pressures in the sub-surface (Welte et al, 1997;Kumar and Vittachi, 2007) accounting for depositional history (sedimentation rates), sand distribution and connectivity (''plumbing''), shale properties (flow retardation) and timing of salt emplacement (no flow zones). It has been demonstrated by Albertin et al (2002) that velocities based on effective stresses computed by detailed 3D basin models show excellent large-scale agreement to seismic derived velocities.…”