DeepOcean has completed subsea construction and tie-in operations at the Teal West development, connecting the new field to the existing Anasuria floating production, storage and offloading (FPSO) facility in the central North Sea.
The work, carried out for Anasuria Operating, marks a key milestone for the offshore oil and gas project on the UK Continental Shelf.
The contract scope covered installation of a flexible production riser, flowline and umbilical linking the FPSO to the Teal West subsea Christmas tree, along with protection measures for the flowline and umbilical and commissioning of the new subsea infrastructure.
Engineering and project management were led from DeepOcean’s Aberdeen office in Scotland, with offshore operations executed in phases using two vessels from the company’s chartered fleet.
Subsea construction and tie-in were completed before commissioning activities commenced.
A defining feature of the campaign was the use of remotely operated vehicle (ROV) technology paired with proprietary tooling to eliminate the need for divers.
DeepOcean’s dedicated tie-in tool enabled diverless connections for high-pressure flanges, allowing pipes and valves to be connected via subsea robotics.
This approach supports safer operations and reduces weather and dive-depth constraints typically associated with human diver intervention.
The Teal West field lies in Block 21/24d at a water depth of 90m, around 180km east of Aberdeen, and is being developed as a subsea tieback by Hibiscus Petroleum through its subsidiary Anasuria Hibiscus.
Under the field development plan, the project includes two production wells and a water injection well, with the initial phase connecting one production well to the FPSO via approximately three kilometres of subsea flowlines.
The Anasuria FPSO, installed and commissioned in 1996, already hosts tie-backs from the Guillemot A, Cook, Teal and Teal South fields.
Anasuria CEO Richard Beattie said: “Teal West is an excellent example of what can be achieved when operators, contractors and service companies work together towards a common goal.
“At a time when our industry faces significant uncertainty, projects like this showcase the expertise, innovation and collaboration that continue to underpin the UK North Sea.”
Beattie said DeepOcean had been a trusted partner throughout the project’s development, helping deliver a successful subsea tie-back that maximised the value of existing infrastructure.
He said projects such as Teal West demonstrated how existing infrastructure could support secure domestic energy production, sustain skilled employment and generate long-term value from the UK North Sea.
The field development plan and environmental statement were submitted to the North Sea Transition Authority and the Department of Business, Energy and Industrial Strategy’s Offshore Petroleum Regulator Environment and Decommissioning body in August 2022.
Regulatory approvals and coordinated execution have enabled the tie-back to leverage existing processing capacity on the Anasuria FPSO, improving project economics and shortening time to first oil.
The Teal West completion follows other recent North Sea subsea work by DeepOcean.
In June 2026, the company signed an agreement with bp to handle decommissioning and recycling of subsea equipment at the Foinaven field offshore the Shetland Islands in the UK.
Together, these contracts underscore DeepOcean’s role in both life-of-field interventions and end-of-life asset management across the basin.
By integrating ROV-based diverless tie-in technology with experienced project management from Aberdeen, the Teal West campaign demonstrates how mature basins can continue to deliver value through brownfield developments that extend the utility of established infrastructure.
