Tyrihans
Statoil - now Equinor, started production from the Tyrihans oil and gas field in the Norwegian Sea in July 2009.
Tyrihans is a complete subsea solution tied back to existing installations and infrastructure on the Kristin and Åsgard fields in the Halten Bank area of the Norwegian Sea.
The field comprises Tyrihans Sør, an oil field with a gas cap, and Tyrihans Nord, a gas and condensate discovery with a thin oil zone. The recoverable volumes in the reservoirs are 186 million barrels of oil and condensate, and 41.5 million standard cubic metres of gas.
Its proximity to the other fields on the Halten Bank means that Tyrihans can use the existing infrastructure.
The wellstream from Tyrihans is sent through a 43-kilometre pipeline to Kristin for processing. The gas is sent ashore through the Åsgard Transport line while oil and condensate are piped to the Åsgard C storage ship for onward transport by tanker. Kristin and Tyrihans share the same operations organisation.
Tyrihans was the largest field we brought on stream in 2009. Newly developed well technology secures a high recovery factor for the field's resources.
About Tyrihans
- The field was discovered in 1982/83.
- The plan for development and operation was submitted in 2005 and approved by the Ministry of Petroleum and Energy in February 2006.
- The seabed templates were installed on the field in the spring of 2007.
- Drilling began in April 2008.
- Production started in July 2009.
- A subsea facility for injection of seawater for pressure support is installed and will start operating in the summer of 2010.
- Plateau production from Tyrihans is put at 96.000 boepd in 2016 - 2017 (Equinor's share 56.000 boepd).
- Tyrihans is expected to continue producing until the end of 2029.
Location: The Halten Bank area of the Norwegian Sea.
Production start: 8 July 2009
Production: Oil, gas and condensate