Southern Viking Graben

Explore this highly prolific area of the NCS using high-quality 3D

Viridien, in collaboration with TGS and Aquila Holdings ASA (under its subsidiary Axxis Multi-client AS), has recently expanded its seismic data library on the Norwegian Continental Shelf by conducting two ocean bottom node (OBN) surveys in the Heimdal Terrace and Sleipner area of the Southern Viking Graben. 

Our state-of-the-art proprietary OBN processing and imaging technology, which includes time-lag full waveform inversion (TLFWI), has produced high-quality 3D volumes to overcome challenges arising from the area’s complex geology. OBN survey acquisition offers significant advantages for the Southern Viking Graben, including:

• Enhanced illumination and resolution of the intricate geological challenges such as sand distribution and fault imaging
• More accurate velocities for depth conversion due to longer offsets
• High signal-to-noise ratio and amplitude preservation

The Heimdal Terrace OBN imaging results show substantial improvement in resolution and structural clarity over previous datasets, offering crucial insights into the region’s complex geology and reservoirs. This enhanced imaging, including depth-time conversion, will be valuable to explorers operating in the area for years to come.