lagganTamoreSituated in storm-tossed seas to the west of Shetland lies the Laggan-Tormore gas and condensate field – the most significant oil and gas project currently underway in the UK.
TOTAL plans to develop Laggan-Tormore as a subsea development with a tie-back via 2 x 18″ production flowlines. The production flowlines will reach the shore in Orka Voe in Shetland, with onshore pipelines routed a distance of approximately 1.2 km to the proposed Gas Production Plant north-east of BP’s Sullom Voe Terminal. The plot area is approximately 34 hectares.
The proposed Laggan-Tormore Gas Production Plant will be designed to process 500 MMSCFD of gas, plus associated condensate (design rate 27,900 bbl/d), produced water (maximum steady state production 730 bbl/d condensed saturation water plus 2,000 bbl/d entrained formation water) and monoethylene glycol (MEG). The wellstream fluids will be commingled with MEG, which will be recovered and continually recycled back out to the Laggan-Tormore wellheads for hydrate inhibition.
Gas will be dehydrated, compressed and exported via a new 30″ pipeline that departs from Gas Production Plant and is routed onshore for a distance of approximately 5.5 km to a beach valve station at Firths Voe. The new export pipeline then transports gas offshore and ties into the FUKA pipeline system close to the decommissioned MCP-01. Subsequently the gas will be transported to the existing TOTAL terminal at St. Fergus for further conditioning and ultimate delivery into the UK National Grid.
Un-stabilised condensate will be pumped to the BP Sullom Voe Terminal crude oil facilities for commingling with East of Shetland crude oil prior to storage and tanker export.
The British government approved its development in 2010 and drilling is expected to start in 2012, with first gas likely in 2014.