The Teal West field lies in block 21/24d of the Central North Sea, at a water depth of 90m. The project is being developed by Hibiscus Petroleum through its wholly-owned subsidiary Anasuria Hibiscus.
NEO Energy withdrew from the field by selling its 30% stake in the project to Anasuria Hibiscus in October 2022.
The field development plan (FDP) and the environmental statement (ES) were submitted respectively to the North Sea Transition Authority (NSTA) and the Department of Business, Energy and Industrial Strategy’s Offshore Petroleum Regulator Environment and Decommissioning body in August 2022.
OPRED approved the ES in July 2023 while the FDP was approved by the NSTA in August 2023.
The final investment decision was achieved in 2023 with an estimated investment of $111.1m. The project is scheduled to commence production in 2025 with an estimated field life of ten years.
The peak production from the field is expected to be approximately 59,000 barrels of oil per day (bopd) and 9.8 million metric standard cubic feet per day of gas.
Location and reserves
The Teal West oilfield lies in the production license 2535 in the UK Continental Shelf Block 21/24d of the Central North Sea. The field is located approximately 155km north-east of Peterhead and 87km west of the UK-Norway median.
It is estimated to hold 2C oil resources of 5.8 million barrels of oil.
Teal West field development details
The field will be developed as a tieback to the existing Anasuria floating production storage and offloading vessel (FPSO).
The development plan for the Teal West field includes the drilling of two subsea oil wells, one water injection well, a drill centre, new flowlines, and subsea infrastructure, including control umbilical and risers.
The initial development well is planned to be drilled in mid-2024 while the subsea tieback is expected to be installed in the first half of 2025.
The field is planned to be developed in three phases. Phase one involves the drilling of a production well to the south-east of the geological structure and tied back to the Anasuria FPSO via a 3.4km production flexible.
Phase two is planned to be carried out after 12 to 18 months of production from the first well. It will involve the drilling of a water injector well tied back to the Teal West injection riser. Phase three will involve the drilling of a second production well. The development of phases two and three will depend upon the success of their prior phases.
Oil and gas transportation from the Teal West field
The oil produced will be exported through offshore tankers. A portion of the gas produced will be used as fuel while the remaining will be exported onshore via the existing Fulmar gas pipeline.
An agreement was signed between Anasuria Operating Company and Anasuria Hibiscus for the transportation, processing, and operating services from the Anasuria FPSO in March 2023.
Anasuria FPSO details
The Anasuria FPSO is located roughly 4km south-east of the proposed Teal West drill centre and 127km east of Aberdeen, Scotland, UK. The FPSO was installed and commissioned in 1996 and is operated by Anasuria Operating Company, a 50/50 joint venture between Ping Petroleum UK and Anasuria Hibiscus UK.
The hull is 234.2m long and has a breadth of 44.8m and a draught of 23.8m. The Anasuria FPSO has seven cargo tanks with a combined storage capacity of 850,000 barrels of oil. The FPSO can accommodate 60 people.
The installation is moored to the seabed by an integrated turret mooring system, which supports the transfer facilities for well fluids, as well as produced fluid streams to and from the Anasuria.
The Guillemot A, Teal, and Teal South fields are all tied back to the Anasuria FPSO.
Petrofac, an energy services company, has been providing operating services to the Anasuria FPSO since 2016. Petrofac is also engaged in scrutinising and managing the FPSO’s pipelines and wells.