Daewoo and Aker Solutions to share Topsides contract
Statoil and its partners Total and Det norske selected a combination of Daewoo Shipbuilding and Marine Engineering (DSME) from South Korea with the local engineering company Aker Solutions to design and build the topsides of the Dagny offshore platform project in Norway.
Discovered in 1974 within the Norwegian Continental Shelf (NCS) as a natural gas field, Dagny appeared in 2007 through additional exploratory wells in Dagny Øst (formerly Ermintrude) as an oil rich field.
Still considered in the shallow waters of the NCS at 30 kilometers distance at the north of Sleipner, Statoil and its partners selected the concept of a fixed platform to develop Dagny and Eirin oil and gas fields.
Dagny is a large field covering four permits:
– PL 303 where Statoil holds 100% interest and is the operator
– PL029C where Total is the operator with 100% interest
ExxonMobil which used to hold up to 33% of Dagny consolidated interests sold out all its interests to the other partners.
In December 2012, Statoil submitted Dagny‘s Plan for Development and Operation (PDO) to the Ministry of Petroleum and Energy based on a plateau production of:
– 60,000 b/d of crude oil
– 9 million cm/d of wet gas
Statoil is planning to submit the Eirin PDO in 2013 based on subsea template tied-in Dagny.
Statoil and Total awarded Dagny main EPC contracts
– Fixed platform for oil and gas production and separation in Dagny
– Subsea tie-in for Eirin
– Export pipeline for the natural gas from Dagny to Sleipner platform
– Offloading system for the oil to shuttle tankers.
Since Sleipner and Dagny are part of the large subsea electrical power supply from shore program, Statoil has planned to install only one gas-fired turbine on Dagny for on-board power generation until the electrical connection shall be in place.
In early February 2013, Statoil and its partners selected the Dutch shipyard Heerema Fabrication (Heerema) for the engineering, procurement and construction (EPC) contract of the fixed jacket for Dagny platform.
To weight 16,000 tonnes, the steel jacket will require $180 million capital expenditure.