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From vintage 2D to modern 3D seismic data: a case study from the Kazakh sector of the Caspian Basin
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 73rd EAGE Conference and Exhibition incorporating SPE EUROPEC 2011, May 2011, cp-238-00796
- ISBN: 978-90-73834-12-5
Abstract
The North Caspian Fold and Thrust Belt of Kazakhstan lies between the Precaspian Basin to the north and the<br>Mangyshlak Palaeo-Trough to the south. The undeveloped Kultuk Field onshore is located along the frontal<br>zone of this folded belt, very close to the Caspian coastline. Poor to fair quality vintage 2D seismic (Fig. 1) and<br>various well data defined the traps for the Kultuk Field as low-amplitude structural closures within the Middle<br>Jurassic sequence. However, a newly acquired 225 km2 3D seismic data set provided not only a better<br>understanding of the trapping configuration within the known reservoir intervals, but it also imaged, for the first<br>time, the deeper structure beneath.