Offshore staff
OSLO, Norway – Norwegian independent Noreco, which plans to rename itself BlueNord, says the Danish Undergound Consortium (DUC) has drawn up a long-term plan for further developments on various producing fields in the Danish North Sea.
Through Project Bifrost, where Noreco is a partner alongside TotalEnergies and the NSF, the company is undertaking early-stage studies to determine the feasibility of CO2 transport and storage using existing infrastructure at the Harald reservoir.
There are a number of projects and studies ongoing for the greater Halfdan development. The most mature is the Halfdan North project, which targets a reservoir located between the producing Halfdan and Tyra SE fields.
The proposed program, led by TotalEnergies, includes drilling seven infill wells between 2023 and 2025. Four of these will be oil wells drilled from the Halfdan complex. Another will be a gas near-field exploration well from Harald, while the other two well slots remain under consideration.
Execution will start once work on the Tyra redevelopment is complete. Another project planned for the complex in 2024, HCA Gas Lift, is designed to support and increase production potential; this will involve modifications to the Halfdan B topsides and installation of a gas-lift manifold at Halfdan C.
In addition, there are plans to develop the Halfdan North Upper Cretaceous discovery—a northern extension of the producing Halfdan Field—via a nine-well tieback to the Halfdan HBD processing platform (including a new wellhead platform and a 7-km export pipeline).
Harald East Middle Jurassic is a gas well drilled from the Harald platform into a Jurassic reservoir with better production properties than the chalk reservoirs exploited by the Dan, Halfdan and Gorm hubs. FID on the development should occur later this year, followed by first gas in 2024.
Elsewhere in the Danish sector, the DUC is considering drilling five wells on Valdemar Bo South in 2026, followed by seven wells on Adda with seven wells. In addition, work continues on maturing additional developments that could be executed with an additional rig, in parallel with these projects.
Valdemar Bo South, a Lower Cretaceous southern extension of the producing Valdemar Field, will be tied back to Tyra E via the Valdemar BA platform with a 2.5-km pipeline from a newbuild wellhead platform with five horizontal wells.
The 1977 Adda-1 discovery well encountered gas-condensate in the lower Cretaceous Tuxen Formation and oil in the overlying Upper Cretaceous Hod Formation.
Adda will be connected to Tyra East via an 11-km pipeline from a new wellhead platform housing seven horizontal producer wells.
03.28.2023
