Offshore staff
STAVANGER, Norway – A new gas module has come onstream at the Troll B platform in the Norwegian Sea, boosting the field’s oil production and processing capacity.
Oil production from theTroll field is in the tail-end phase due to declining reservoir pressure and thinning of the oil column after decades of complex drainage. Output has been restricted by the gas treatment capacity on Troll B, but the new module should raise capacity by 25%, in the process delivering a further 4.7 MMbbl.
After a few years, Troll will produce solely from its large remaining gas reserves.
The increased capacity will allow more wells to remain onstream also when the oil wells are producing simultaneously with a rising percentage of gas during the tail-end phase.
Once the currentTroll Phase 3 project comes onstream in 2021, the gas will be tied in to the Troll A platform.
Aker Solutions in Bergen was responsible for design and construction of the module in Egersund, Norway, under a NOK400-million ($48-million) front-end engineering design contract.
After construction finished this April, the module was transported offshore and lifted into position by Saipem. It comprises an electric compressor train and new in-line gas drying technology, designed to minimize carbon-dioxide emissions.
“Focus on simplification and improvement from an early work phase has reduced costs by some 10% after the investment decision, and the project has been delivered on schedule with good HSE results,” said Knut Kalvøy, heading the project for Equinor.
10/30/2018
