Redevelopment of Tyra field in the Danish North Sea moves to a new phase following installation of two new jackets, partner Norwegian Energy Co. ASA (Noreco) said Sept. 28 (OGJ Online, Dec. 11, 2017).
The remainder of the Danish Continental Shelf project will focus on yard fabrication and offshore installations to rebuild the new Tyra. Wellhead and riser modules are currently being built in Singapore, the accommodation module in Italy, and the process module in Indonesia.
The jackets, confirmed safely installed according to plan, were fabricated by Dragados Offshore SA in Spain. The jackets form the foundation for the new Tyra process and accommodation platforms and are the first new jacket structures delivered and installed for the redevelopment project. The past year has mainly involved safeguarding of the wells and wellhead jackets, and the decommissioning and removal of the old Tyra modules.
Tyra field is the largest gas condensate field in the Danish sector of the North Sea. Its facilities process more than 90% of the gas produced in Denmark, as well as the entire gas production of the Danish Underground Consortium (DUC) comprised of operator Total 43.2%; Noreco 36.8%, and Nordsøfonden 20%.
Due to seabed subsidence, the field required redevelopment, and in September 2019 production was temporarily shut in. Redevelopment will replace gas processing and accommodation platforms on Tyra East and Tyra West with a new processing platform and a new accommodation platform.
Jackets will be extended by 13 m on four wellhead platforms and two riser platforms, and topsides will be replaced.
When back in operation, Tyra will reach peak production of 60,000 boe/d. With the use of new technology and modernized working processes Tyra’s operating efficiency is expected to increase, and at the same time reduce CO2 intensity by 30%.
