Development

Brage is a field in the northern part of the North Sea, ten kilometres east of the Oseberg field. The water depth is 140 metres. Brage was discovered in 1980, and the plan for development and operation (PDO) was approved in 1990. The field has been developed with an integrated production, drilling and accommodation facility with a steel jacket. The production started in 1993. A PDO for Brage Sognefjord was approved in 1998. PDO exemptions were granted for the Brent Ness and Bowmore Brent accumulations in 2004 and 2007, and for the Talisker East Brent, Cook and Kim Sognefjord accumulations in 2022, 2023 and 2024, respectively.

Reservoir

Brage produces oil from sandstone of Early Jurassic age in the Statfjord Group, and sandstone of Middle Jurassic age in the Brent Group and the Fensfjord Formation. Oil and gas are also present in Upper Jurassic sandstone in the Sognefjord Formation, there is a small accumulation in the Cook Formation. The reservoirs are at depths of 2000-2300 metres. The reservoir quality varies from poor to excellent.

Recovery strategy

The recovery strategy in the Statfjord and Brent Groups and Fensfjord Formation is water injection. The Brent Group had earlier been produced by water alternating gas (WAG) injection. The Sognefjord and Cook Formations are produced by depletion with pressure support from the aquifer.

Transport

The oil is transported by pipeline to the Oseberg field and further through the Oseberg Transport System (OTS) pipeline to the Sture terminal. A gas pipeline is tied-back to Statpipe.

Status

Brage has been producing for a long time, and work is still ongoing to find new ways to increase recovery from the field. New wells are being drilled, often combined with exploration of near field prospects.