NOAKA Ocean Bottom Node

Continuing recent successes for ultra-long offset large scale OBN surveys ​

NOAKA OBN Survey

The NOAKA Ocean Bottom Node (OBN) surveys lie between Oseberg and Alvheim in the Norwegian North Sea in an area containing both held and open acreage. They cover over 586 square kilometers (total area under receiver) of the Norwegian Continental Shelf (NCS) in an area that has witnessed significant Infrastructure-Led Exploration (ILX) activity recently.

Split into two acquisition projects, processing of the NOAKA21 survey will be completed Q4 2022, with the recently acquired NOAKA22 data available Q4 2023.



This region has seen significant exploration success in recent years and 
includes the development of the NOAKA fields, one of the largest developments on the NCS, with recoverable reserves of more than 500 million barrels of oil equivalents. The new data will stimulate near-field exploration and infill drilling.

​These surveys cement TGS' leading position in delivering multi-client OBN data. We continue to support E&P companies in their efforts to maximize the lifespan of current production activities and discover additional hydrocarbon reserves offshore Norway. OBN remains the key to realizing these objectives.

TGS_NOAKA_Data_Coverage_Map_WEBThe NOAKA survey is situated in held and open acreage and complemented by a range of subsurface data types from TGS.

Please use the link at the top of this page to contact our team and learn more about this unique exploration-grade OBN.


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Get in contact with our Europe team to ask more about how we can help you with your subsurface intelligence needs.

Atlantic Margin

New Data Reveals Exploration Opportunities

In some cases, exploration on the Atlantic Margin has been hampered by a lack of geological understanding due to few wells and insufficient seismic detail. However, recent TGS seismic has unveiled the prospects hidden by complex basalt rock using subsurface velocities for separate interpretation with extremely high confidence and greater detail.

See how TGS is changing understanding of the Mid-Norwegian Margin