Model-Based Interpretation of Time-Lapse Seismic, Using Stochastic Matching

1 F-05 MODEL-BASED INTERPRETATION OF TIME- LAPSE SEISMIC USING STOCHASTIC MATCHING DAVID GAWITH and PAMELA GUTTERIDGE Reservoir Characterization Research and Consulting (UK) Ltd. Introduction The acquisition of 4D seismic surveys is becoming routine practice for operating companies yet the technology available for interpreting the resulting data is in its infancy. Successful studies have been reported (1) (2) and (3); these studies have generally used an approach based on the direct interpretation of differences between data volumes of different vintages. The main difficulty with this approach is that the seismic differences contain (a) noise from various sources and (b) distortion due