We are sad to note the death of Dr Birger Natvig, who after a long illness passed away peacefully on September 3rd, surrounded by his nearest family.

At ICE, we will remember Dr Natvig as the mild-mannered and soft-spoken principal inventor of the DeltaLifter, an ingenious device for safely decommissioning offshore platforms. However, that was only one of his many achievements.

Birger Natvig was awarded a BSc degree in naval architecture from the University of Strathclyde in 1974. In 1978 he earned an MSc degree in ocean engineering followed in 1978 by a PhD degree from the University of London; his speciality being non-linear motion behaviour of floating structures.

His career included employment by leading Norwegian offshore industry companies such as Aker, DNV and Norwegian Contractors, before he in 1995 co-founded his own consulting company. His hydrodynamics and structural analysis expertise have contributed to the design of a wide range of innovative offshore structures including semi-submersibles, TLPs, concrete platforms, decommissioning vessels, FPSOs and fish farms.

Dr Natvig authored more than 35 technical and scientific papers and held several patents. He was a Chartered Engineer, a registered Eur Ing, a Member of the Royal Institution of Naval Architects (RINA) and a founding member of the International Society of Offshore and Polar Engineers (ISOPE), for which he chaired the Offshore Technology and Nomination Committees. He served as an expert witness, was a steering committee member on major British University research projects and was for several years a member of the Anchoring Committee of the Norwegian Maritime Directorate. In his final years he was active for as long as he could in a national organisation to combat Parkinson’s disease and help other victims.

At ICE we are glad to have known Dr Natvig and we are proud to continue his effort to get his patented DeltaLifter concept accepted in the offshore decommissioning industry.

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