Offshore staff
ABERDEEN, U.K. — Pre-FEED studies have started for the proposed subsea tieback of the Marigold oil field to the Piper Bravo platform in the U.K. central North Sea.
The Marigold cluster, which includes the Sunflower, Crown and Kildrummy discoveries, is northeast of Block 15/13a and 250 km (155 mi) northeast of Aberdeen.
Hibiscus Petroleum and Ithaca Energy are co-owners of the Marigold Field, which will likely be the tie-in point for Sunflower and other accumulations in the Quad 15 area.
They are working with an alliance of Repsol Sinopec Resources UK (operator of the Piper Field), TechnipFMC and Petrofac on the development, with an integrated project team based at Repsol Sinopec’s Aberdeen office.
The alliance has been offering owners of oil and gas discoveries located close to Repsol Sinopec’s North Sea infrastructure hubs what it describes as a "commercially flexible solution" to meet their development objectives.
For Marigold, the planned concept involves drilling up to nine subsea wells, tied back 16 km (9.9 miles) to Piper B, where gas-lift, processing and transportation services will take place before the oil is exported to Repsol Sinopec’s Flotta Terminal on Orkney, northern Scotland for tanker offload.
Peak production should be 40,000 bbl/d of oil and 12 MMcm/d of gas, with Marigold delivering 50 MMboe to 60 MMboe during its lifespan.
Earlier, the Golden Eagle, Piper and Claymore field owners executed new agreements to continue exporting their produced oil to the Flotta Terminal until the end of field life.
The Piper Field is in Block 15/17n, 193 km (120 miles) northeast of Aberdeen. The eight-legged Piper B platform was installed in 1992 in 145 m (476 ft) of water and started production in 1993.
Its process facilities separate production from the Piper, Saltire, Chanter, Iona and Tweedsmuir reservoirs into oil, NGL and dry gas. The processed oil and condensate are then exported to Flotta.
