Assessment of time-lapse seismic repeatability using repeated test lines at the Kristin field

We present a work flow for assessing the feasibility of time-lapse (4D) seismic for a reservoir where the expected time-lapse signal is small and mainly consists of time shifts. The feasibility assessment is achieved by acquisition of repeated 2D test lines and full 3D processing. Noise extracted from the measured difference data is used in a seismic modelling study to demonstrate that time-lapse seismic may be feasible for expected production effects at the Kristin field.