ABERDEEN, UK – Hardware for BP’s Devenick field development in the UK central North Sea has been installed on Marathon Oil’s host East Brae platform.
The 600-metric ton (661-ton) module, built by McNulty in South Shields, northeast England, will receive gas and condensate from the Devenick reservoir, and separate them prior to onward transportation to eastern Scotland via existing pipelines.
Under the initial phase of the development, gas production from two new wells will head to the Devenick subsea manifold (built by Isleburn in Scotland) via insulated flowlines, fabricated and installed by Technip. At the manifold, the well streams will be combined and sent to East Brae platform via a single insulated 34-km (21-mi) pipeline.
From the platform the gas will be exported through the SAGE transportation pipeline system to the terminal at St. Fergus. Produced condensates will pass through the Brae Liquids pipeline into the Forties pipeline system.
Devenick was discovered in 1983, with three further appraisal wells drilled between 1986 and 2001. BP estimates the field’s in-place gas at estimated at 430 bcf. Recent advances in subsea technology and an improved understanding of the reservoir allowed BP and its partner RWE Dea UK to proceed with development following government sanction in 2010.
Production is due to start next year, building to a peak in 2013 of up to 200 MMcf/d, equivalent to around 3% of the UK’s production. The field should continue producing until 2025.
JP Kenny is responsible for subsea engineering, while Aker Solutions designed the module for East Brae. Petrofac is responsible for topsides brownfield design and construction work.