O. Kirstetter, C. Reiser, D. Lecerf, A. McInally, P. Conway, K. Flanagan
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Data Pre-Conditioning for 4D Stratigraphic Inversion – A Case Study – The Gryphon Field
P206 DATA PRE-CONDITIONING FOR 4D STRATIGRAPHIC INVERSION A CASE STUDY: THE GRYPHON FIELD Abstract 1 4D pre-stack stratigraphic inversion is performed on the Gryphon field using two 3D seismic vintages (1990 and 2002). The goal of the study is to image saturation changes within the Balder formation and within the injected sands in the Upper Balder and Frigg formations pressure changes being negligible. Starting from time-migrated pre-stack data 6 angle stack volumes are generated for each vintage on which data pre-conditioning is performed to optimize the 4D difference prior to the inversion. Common seismic cubes are thus computed between adjacent
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