Rock Physics Guided Velocity Modelling for Migration and Pore Pressure Prediction

We present a workflow using geology in conjunction with thermal history modelling and rock physics principles for velocity modelling and imaging is presented. A novel feature of this workflow is to use predicted pore pressure as a guide to improve the quality of Earth model. Thus, we are not only flattens the CIP gathers (a necessary imaging condition) but also limits the velocity field to its physically and geologically plausible range without well control.This has yielded both improved image and more accurate pore pressure.