Estimation of Layer Thickness and Velocity Changes Using 4D Prestack Sesimic Data

C010 Estimation of layer thickness and velocity changes using 4D prestack seismic data Abstract 1 0 0 th EAGE 67 Conference & Exhibition — Madrid Spain 13 - 16 June 2005 1 1 1 T.RØSTE A.STOVAS AND M. LANDRØ 1 Dep. Of Petroleum Engineering and Appl. Geophysics NTNU 7491 Trondheim Norway For some hydrocarbon reservoirs severe compaction of the reservoir rocks is observed. This compaction is caused by the production and is often associated with changes also for the overburden. Time-lapse seismic data can be used to monitor this compaction process. Since the compaction causes both changes in layer thickness