Processing of OBC and Surface Seismic Data for Reservoir Monitoring at the Statfjord Field

A-13 PROCESSING OF OBC AND SURFACE SEISMIC DATA FOR RESERVOIR MONITORING AT THE STATFJORD FIELD Summary 1 We have investigated how processing can improve repeatability between surface seismic and OBC (P/Z) data from the Statfjord Field with application in seismic monitoring. We first tried post-stack matching of previously processed data sets. This proved sufficient for realistic mapping of production effects. Further improvements in repeatability were obtained by a proper 4D concurrent processing of OBC and surface seismic data. Introduction Seismic data acquired at the sea bottom will play a more important role in future reservoir monitoring. The potential benefits compared