An Appraisal of Methodologies to Determine the Thickness of a Thin CO2 Layer using 3D Seismic Data at the Sleipner CO2 Storage Site, Norwegian North Sea

James White1, Gareth Williams2, Andrew Chadwick3, Anne-Kari Furre4, Anders F KiƦr4 and Laurence Robert Cowton5, (1)British Geological Survey Keyworth, Nottinghamshire, NG12, United Kingdom, (2)British Geological Survey, Edinburgh, United Kingdom, (3)British Geological Survey Keyworth, Nottinghamshire, United Kingdom, (4)Statoil ASA, Trondheim, Norway, (5)ASI Data Science, London, United Kingdom