Gannet B

Gannet B Oil and Gas Field Profile

Location and Geology

• The Gannet B field is located in the Central North Sea, approximately 180 km east of Aberdeen, UK. It is situated within blocks 21/25, 21/30, 22/21, and 22/26a, at a water depth of about 95 meters.

• The field is part of the Gannet complex, which includes several reservoirs of Tertiary age, specifically the Tay, Rogaland, Forties, Lista, and Andrew Formations. These reservoirs consist of good-quality turbiditic sands.

Field Characteristics

• Gannet B is a gas field located 5 km north-west of the Gannet A platform. It is characterized as a gas/condensate reservoir.

• The field contains 3 million barrels of condensate and 139 billion cubic feet of gas.

Production and Infrastructure

• Production from Gannet B is facilitated through two subsea wells. These wells are connected to the Gannet A platform via individual 150mm pipelines.

• The processed gas and condensate are handled at the Gannet A platform, which serves as the central processing facility for the entire Gannet complex. The platform processes oil and gas from all the satellite fields, including Gannet B.

Operators and Partners

• The Gannet B field is operated by Shell U.K. Ltd, with Shell holding a 50% interest. The remaining 50% is held by Esso.

Production History and Capacity

• Production from the Gannet complex, including Gannet B, started in 1993. The field has been part of the ongoing development and production activities in the area.

• While specific peak production rates for Gannet B alone are not detailed, the overall Gannet complex has significant production capacities. For example, the Gannet A platform has an oil export capacity of 88,000 barrels per day and a gas compression and dehydration capacity of 246 million standard cubic feet per day.

Technical and Engineering Aspects

• The Gannet A platform, which processes output from Gannet B, was designed by Matthew Hall Engineering. The platform's topsides were fabricated by Redpath Offshore North, and the jacket was constructed by RGC Offshore at Methil.

• Gas from Gannet B, along with other fields, is compressed and dehydrated before being exported through the Fulmar Gas Pipeline to the St Fergus Gas Processing Terminal.

Contractors and Projects

• Technip has been involved in various projects related to the Gannet fields, including engineering, procurement, installation, and construction (EPIC) contracts. However, specific contracts for Gannet B are not separately highlighted, as most contracts pertain to the broader Gannet complex.

In summary, Gannet B is an integral part of the larger Gannet oil and gas field complex, operated by Shell and Esso, with significant gas and condensate reserves, and is tied back to the central Gannet A platform for processing and export.