Field Observations and Modeling Production-Induced Time-Shifts in 4D Seismic Data at South Arne, Danish North Sea

I016 Field Observations and Modeling Production- Induced Time-Shifts in 4D Seismic Data at South Arne Danish North Sea J. Herwanger* (WesternGeco) E. Palmer (WesternGeco) & C.R. Schiøtt (Hess) SUMMARY EAGE 69 th Conference & Exhibition — London UK 11 - 14 June 2007 Summary Reservoir production causes subsurface deformations and changes in seismic velocity. These deformations and velocity changes can be monitored using time-lapse seismic data. A fundamental challenge in the interpretation of time shifts observed in time-lapse data is the decomposition of the time delay into a spatial compaction component and a velocity change component. Several authors (Hatchell and