First production well on Statoil's North Sea Sygna field comes on stream

Aug 01, 2000 02:00 AM

The first production well on Statoil's Sygna field in the Norwegian North Sea has come on stream. A second producer is due to start up before the end of the year, when Sygna should be flowing about 40,000 bpd of oil.
Sygna contains an estimated 53.5 mm barrels of recoverable oil, and the two wells are likely to produce until 2014. The field has been developed as a satellite with a subsea template tied back to Statfjord C, which lies 21 km to the south and handles processing, storage and offshore loading of the oil. Work with Sygna is on schedule and below the cost estimate presented in the plan for development and operation.
"Although this represents a relatively small project, it is nevertheless among the best we operate," says project manager Dag Brundtland. "Our required rate of return can be met even at an oil price below $ 7 per barrel." Good utilisation of existing infrastructure in the Statfjord area provides one reason for this good profitability, he adds.
The umbilical linking Sygna with Statfjord C incorporates a 3.5-inch methanol service line - the largest diameter used for a subsea development world-wide, according to Mr. Brundtland. This line helps to compensate for the pressure drop, which occurs because of the long distance between template and platform. Satellites Statfjord North and East are also tied back to Statfjord C, which will be delivering about 270,000 bpd once Sygna is in full production.

Source: Energy24
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