Time-Lapse Amplitude Variations on Seismic Data from the Oseberg Field

P-668 Time-Lapse amplitude variations on seismic data from the Oseberg field. 1 A. MAZZOTTI E. STUCCHI* and P. TERENGHI University of Milano Earth Sciences Dept.- Geophysics Via Cicognara 7 20129 Milano Italy. Introduction. We illustrate the final results of a time lapse seismic amplitude study carried out on data pertaining to four 3D vintages (1982 1989 1992 1999) of the Oseberg field in the North Sea. In particular we focus on a subset of 2D lines of 1982 1989 and 1999 which have almost coincident spatial locations. Oil production from the Brent reservoir started in 1988 and gas injection was