Oxygen scavenger
Equinor (Stavanger, Norway; www.equinor.com) has worked with Clariant Oil Services (Houston; www.clariant.com) to optimize the volume of the oxygen scavenger being used on the Norwegian offshore oil platform, the Johan Sverdrup. “As part of our optimization process, our team took the existing O2 remover being used by the platform, Clariant’s incumbent product — a liquid-grade, sulfite-based oxygen scavenger — and looked at how we could make it a more efficient product, formulating a catalyzed version,” says Jarle Skjold, global corporate account manager at Clariant Oil Services.
In field trials, the teams were able to reduce the volume of the O2 remover used. After replacing the incumbent product with the specially formulated Clariant replacement product, the installation was able to achieve significant cost savings of around $800,000/yr, as well as multiple sustainability improvements, including reduced chemical and energy usage, and production and shipping efficiencies, says Clariant.
The Johan Sverdrup is one of Norway’s largest oilfields and will, at peak production, supply 25% of the Norwegian oil supply. Production started in October 2019 where Clariant was awarded the production chemical supply contract in 2017 and has been part of the project phase supporting Equinor in the development of this giant new oil field.