Norne is an oil field located about 80 kilometres north of the Heidrun field in the Norwegian Sea. The water depth in the area is 380 metres. The field has been developed with a production and storage vessel, “Norne FPSO”, connected to seven subsea templates. Flexible risers carry the wellstream up to the production vessel. In April 2008, an amended PDO for Norne and Urd was approved. The plan includes 6608/10-11 S Trost and several prospects in the area around Norne and Urd.
The reservoir is in Jurassic sandstones. Oil is mainly found in the Ile and Tofte Formations, and gas in the Not Formation. The reservoir depth is about 2 500 metres. The reservoir quality is good.
The oil is produced by water injection as drive mech-anism. Gas injection ceased in 2005 and all gas is now being exported.
The oil is loaded to tankers for export. Gas export started in 2001, and the gas is transported through a dedicated pipeline to Åsgard and on through the Åsgard Transport pipeline to Kårstø.
Various measures to improve recovery are being considered, including the use of new well technology. Several light well interventions are planned, and two new production wells from the subsea M-template will be drilled in 2011 to maintain the oil production.
Download: Norne (pdf)