Fully electrified rigs and other facilities operating across the Norwegian Continental Shelf are emitting 1.2 kg of CO2 per boe produced, according to Rystad Energy.
This is 86% lower than the 8.4 kg of CO2/boe emitted by the same assets prior to undergoing electrification.
Norway can deploy its resources of hydroelectric power in particular to help cut emissions from its upstream production. The country now plans to cut emissions from operations on the shelf by 70% by 2040.
Other producing countries have greater issues converting their offshore facilities for the same purpose, notably much larger distances from the mainland, insufficient power grid infrastructure and a limited renewable power capacity.
But even a partial electrification could bring substantial emissions reductions, Rystad claims.
It has identified worldwide 30 "premium energy basins" with large hydrocarbon reserves and the potential to incorporate environmentally friendly practice. These basins collectively could account for more than 80% of the world’s oil and gas this year and will continue to do so through 2050.
If the offshore facilities in the basins were to undergo electrification, a total of 5.5 gigatonnes of CO2 would be avoided by 2050.
“Where it’s possible and economically viable, electrification has great potential to lower the industry's emissions while maintaining production output,” said Palzor Shenga, Rystad's vice president of upstream research.
The planning process would require the adoption of optimal technologies as well as an assessment of the costs and strategies needed to maintain a continuous energy supply, particularly in remote locations with limited access to local grids. Other priorities are establishing economic and financial viability of these investments.
