Statoil adds more wells at Snøhvit offshore northern Norway

Offshore staff

OSLO, Norway – Petroleum Safety Authority (PSA) Norway has approved three upcoming well campaigns on fields operated by Statoil.

The recently delivered and PSA-approved Cat D semisubmersible Songa Enabler will drill three wells at the Snøhvit gas field in the Barents Sea, north of Hammerfest.

Gas produced via subsea facilities is transported onshore through a 143-km (89-mi) pipeline to the process plant at Melkøya. Snøhvit’s gas contains carbon dioxide (CO2), which is separated out at Melkøya and sent back to the field for reinjection.

The Songa Enabler will drill two new producers and one well for re-injecting CO2, designated 7121/4 G-4 H, F-1 H, and G-3 H.

The two associated subsea templates are in 316 and 318 m (1,037 and 1,043 ft) of water, respectively.

Drilling is expected to take 220 days to complete.

Statoil also has PSA’s consent to use the semisub Scarabeo 5 for maintenance of production well 34/7-A8 HT in 335 m (1,100 ft) of water at the Snorre oil field in the Tampen area of the North Sea, 150 km (93 mi) west of Florø.

Production started at the field in 1992 – the development currently employs two floating integrated production facilities, Snorre A and B, and one subsea template tied back to Snorre A.

The well has been shut down for some time: Statoil is aiming to restore it to production. Drilling is set to last 22 days.

Finally, Statoil has authorization to use the semisub Songa Delta for permanent plugging of well 30/8-A-12 at the Tune gas/condensate field in the North Sea, 10 km (6.2 mi) west of the Oseberg field center, in 95 m (311 ft) water depth.

Production, which started in 2002, is via a subsea template and a satellite well tied back to Oseberg.

The 24-day program should start early next month.


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