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Ocean Bottom Seismic in the Oseberg South Area
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Jun 2010, cp-161-00163
- ISBN: 978-90-73781-86-3
Abstract
The Oseberg South area of the North Sea holds substantial reserves but the development has been very difficult in some fields with very poor seismic data. The image problems were due to the presence of dolomitized sand bodies varying rapidly in thickness and position in the overburden. The solution was to use ocean bottom seismic and the results were impressive. The technique evolved rapidly with sparser acquisition reducing cost but maintaining the excellent illumination. The seismic data changed from only just interpretable to good enough to provide excellent interpretation and inversion. The next survey planned is ten times the size of the first.