Depth imaging

ROB VESTRUM, PHD, PGEO THRUST BELT IMAGING, ROB@TBI.CA TIM MACARTHUR, MSC, PGEO THRUST BELT IMAGING, TIM@TBI.CAhttps://doi.org/10.66733/ZJYH4579 Abstract In structurally complex environments like the mountains and foothills of the Andes and Rockies, outcropping rocks and differential weathering generate significant seismic-velocity variation in the near surface. In time processing, we correct for these near-surface fluctuations with weathering statics, minimizing the time delays caused by variability in near-surface velocities due to weathering. These statics calculations are made using the first-break energy on shot records—refraction statics—followed by statics that are calculated with the correlation of seismic reflectors—reflection statics. Correcting for near-surface velocity variation with static [...]