STAVANGER, Norway --StatoilHydro has started carbon storage in the Snohvit field development in the Barents Sea.
Carbon dioxide (CO2) produced with the Snohvit well stream is being re-injected into the ground and stored in liquid form in sandstones beneath the field's gas-bearing formation, 2,600 m (8,530 ft) below the sea bed. According to the company, a shale cap above the sandstone will seal the reservoir and ensure the CO2 remains in place without leaking to the surface.
The associated carbon capture plant, compressors and pumps at the Melkoya Island LNG terminal began operating last weekend. Snohvit's gas contains 5-8% CO2. It is separated out on arrival at Melkoya and sent back to the field via a subsea pipeline.