Location: Bacton Interconnector Pipeline, Norfolk, England Client: Bacton Balgzand Ltd Engineering, Landfall and Construction Landfall section at the UK end of the Bacton Balgzand (Netherlands) Interconnector pipeline. The work included pre dredging a trench and pull ashore from a lay barge of a 1.0km x 36” dia steel, using an L&M 600 te linear winch pulling system and the construction of a tunnel and shaft to bring the pipeline from the beach into the Bacton terminal. Location: Ross Bay, Dumfries, Scotland Client: Bord Gais Eireann Engineering, Landfall and Construction Landfall section of the Gas 2025 – 2nd Scotland to Ireland Interconnector at Ross Bay. Work included pre dredging trench and pull ashore from lay barge of a 1.0km x 610mm dia steel. Work also included 1.2km of landline to new compressor station. Location: St Fergus, Aberdeenshire, Scotland Client: Britannia Operator Ltd Engineering, Landfall, Trenching and Construction Installation of the landfall section of the Britannia Field gas pipeline. Work included the excavation of a primary dune and driving a 130m beach cofferdam prior to the pull ashore of a 1km x 711mm dia pipeline. The inshore section was subsequently post buried into the seabed using the trenching machine TMIV operating from the workbarge LM Balder. A further 1.2km of land line was installed linking the landfall to the gas reception terminal. Location: Bacton, Norfolk, England Client Interconnector Group Engineering, Landfall and Construction Sinking of a 24m shaft and 115m tunnel through cliff, dredging of a 1.2km shore approach trench, construction of a beach cofferdam and the pull ashore of the 1.2km x 1016mm gas pipeline and a 1km x 508mm temporary test water discharge pipe from laybarge. Part of the UK to Europe interconnector gas transfer pipeline. Location: Point of Ayr, North Wales, Wales Client: Hamilton Oil (s/c to McDermott/ ETPM) Engineering, Landfall, Trenching and Construction Fabrication on land and pulling into position by barge mounted winches on the LM Balder. The 4.15km long x 508mm gasline + 2 No. 90mm dia condensate piggyback pipelines forming the landfall section of the Hamilton Field development in Liverpool Bay. The pipelines were post buried to give a 2m minimum cover using a trenching machine TMIV. Location: Brighouse Bay, Dumfries, Scotland Client: Bord Gais Eireann Engineering, Landfall and Construction Landfall section of the Scotland - Eire Interconnector Gas Pipeline at Brighouse Bay. Work included pre dredging trench and pull ashore from lay barge of a 3.3km x 610mm dia steel pipeline. Location: Tees-side, England Client: Amoco UK Exploration Co.(s/c to ETPM) Engineering, Landfall and Construction The landfall section of the CATS (Central Area Transmission System) pipeline at Tees-side. Work included a 4.5km, 1200 tonne pull ashore of a 915mm dia steel pipeline into a pre-dredged trench having an average depth of 3.5m and the construction of a 110m beach cofferdam and 400 metres of land pipeline. Location: Cruden Bay, Aberdeenshire, Scotland Client: BP Petroleum Development Ltd Engineering, Landfall and Trenching Landfall section of the Forties Field replacement pipeline. Work included an open cut excavation through a primary sand-dune, the driving of a beach/dune cofferdam and the pull ashore of a 1.5km x 915mm dia steel pipeline from a laybarge. The inshore 1.5km section was then jetted into the seabed using the trenching machine TM IV. A further 16.5km of the pipeline was trenched to give 0.25m of cover using the 'post pipelay' plough PBP1. Both trenching operations were supported by the workbarge LM Balder. Location: St Fergus, Aberdeenshire, Scotland Client: BP Petroleum Development Ltd (s/c to ETPM) Engineering, Landfall and Trenching Landfall section of the Miller Field pipeline. Work included major open cut excavation through a primary sand-dune, the driving of a beach/dune cofferdam and the pull ashore of a 1.5km x 762mm dia steel pipeline from a laybarge. The inshore 1.5km section was then jetted into the seabed using the trenching machine TM IV operating from LM Balder. Location: St Fergus, Aberdeenshire, Scotland Client: Mobil North Sea Ltd (s/c to EMC) Engineering, Landfall, Construction and Trenching Landfall section of the Beryl Field pipeline. Work included excavation of primary dune and driving a 250m long beach cofferdam. The pull ashore of a 762mm gas trunk line and a 323mm outfall pipe, each 800m long, in a 1200 tonne pulling operation, from a laybarge anchored offshore. The pipelines were subsequently buried into the seabed using trenching machine TMIV operating from the workbarge LM Balder. Ancillary works included 1.5km of landlines, valve station and pigging facility. Location: Theddlethorpe, Lincolnshire, England Client: Conoco UK Ltd Engineering, Landfall and Construction The landfall section of the SBGD LOGGS Gas pipeline. Work included a 1200 t pull ashore of a 1.2km x 915mm dia steel pipeline with a 100mm dia piggyback methanol line into a pre-dredged trench and a 1.17km landline section with valve station, pig receiver and access road. Location: Bacton, Norfolk, England Client: Shell UK Exploration & Production Ltd (s/c to Saipem) Engineering, Landfall and Construction Sinking of a 12m shaft and 60m tunnel through cliff, dredging of a 700m shore approach trench, construction of a 100m long beach cofferdam and the 1.2km pull ashore of the 762mm dia SE Inde Field gas line from a laybarge. Location: Easington, Humberside, England Client: BGC Engineering, Landfall and Construction The pull ashore of the 1km x 915mm dia Rough Field gas pipeline from a laybarge into a dredged trench Location: Sullom Voe, Shetland Islands, Scotland Client: Shell UK Exploration & Production Ltd (s/c to Oceanics) Engineering, Landfall and Construction Three contracts relating to Cormorant Field oil pipeline. Preparation of seabed in depths up to 95m involving blasting, and deposition and levelling of graded stone, shore approach and pull ashore of the 914mm dia. wrapped and concrete-coated steel pipe and subsequent protection and securing of the line Location: St Fergus, Aberdeenshire, Scotland Client: Total Oil Marine (s/c to ETPM) Engineering, Landfall and Construction Two contracts relating to twin 812mm dia. gas lines from Frigg Field. Survey and preparation of pipeline route, 2km shore approach and pull ashore from laybarge and subsequent trenching of inshore section to give 2m of cover, using the TM IV. trenching machine. Location: Cruden Bay, Aberdeenshire, Scotland Client: BP Petroleum Development Ltd Engineering, Landfall and Trenching Pull ashore of 1km length x 812 mm dia. Forties Field oil pipeline from laybarge and the burial of the pipe into the seabed using the TM IV trenching machine. This was Britain’s first oil line to be landed. |