Edradour

Location and Geology

The Edradour gas and condensate field is located in Block 206/4a of the UK Continental Shelf (UKCS), approximately 75 kilometers northwest of the Shetland Islands. The field is situated in water depths of about 300 meters.
The reservoir is of Cretaceous age, with gas and condensate found within the black sail sands.

The Edradour field was discovered in January 2011 through the drilling of the exploratory well 206/4-2 using the Sedco 714 rig.
The development of the field was officially launched in July 2014, with Total E&P UK (TEP UK) as the operator. Initially, Total held a 75% interest, and Dong E&P (UK) held the remaining 25%. However, by the start of production, Total's interest had increased to 60%, with Dong E&P (UK) and SSE E&P UK Limited each holding 20%.

The development plan involved converting the exploratory well into a production well. The field is tied back to the existing Laggan-Tormore production facilities via a 16-kilometer, 12-inch diameter production pipeline. Additional infrastructure includes a six-inch diameter monoethylene glycol (MEG) pipeline and a two-inch diameter piggy-backed service pipeline.
A 35-kilometer power, communications, hydraulic, and chemical umbilical was installed from the Laggan manifold to the Edradour manifold. The production flowline is integrated with flowline end termination structures (FLETs) and a pipeline end manifold (PLEM) near the In-Line Tee 3 (ILT3) tie-in point.
The Glenlivet field, located nearby, is also part of the development project, with two wells tied back to the Edradour facilities via a 17-kilometer production pipeline.

Production from the Edradour and Glenlivet fields started in the fourth quarter of 2017, with an expected peak production of up to 56,000 barrels of oil equivalent per day (boe/d) combined for both fields.
The production fluids are mixed with those from the Laggan and Tormore fields and processed at the Shetland Gas Plant (SGP). Gas is then exported to the UK mainland via the Shetland Island Regional Gas Export (SIRGE) pipeline and the Frigg UK Area (FUKA) gas pipeline system. Natural gas liquids (NGL) are exported to Mossmorran, and condensates are exported to the Sullom Voe Terminal (SVT).

Technip was awarded the contract for the supply and installation of the subsea facilities, including the fabrication and installation of production pipelines, MEG pipeline, and service pipeline, as well as the installation of steel tube umbilicals and other subsea equipment.
EPC Offshore provided project management services for the development.
FMC Technologies supplied subsea equipment, including manifolds, wellhead systems, and subsea tie-back connection equipment.

The estimated development cost for the Edradour field was £340 million (approximately $582 million).
The project was completed ahead of schedule and 30% under the initial budget.

As of May 2024, production from the single well on the Edradour gas field is suspended due to facilities constraints in the Greater Laggan Area related to MEG management. The joint venture is monitoring the well and considering a potential restart.

The Edradour and Glenlivet development is part of Total's broader operations in the UK North Sea, contributing to the company's production growth in the region. Total has been present in the UK for over 50 years and operates several fields across different areas of the North Sea.