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Location: Donegal, Ireland Clients: Ascons, Galway Submarine Outfalls and Intakes Donegal Bay Waste Water Management Scheme. 2No HDPE outfalls at Ballyshannon (306m x 315mm) and Rossnowlagh (1120m x 450mm), installed into a dredged trench Location: Tramore, Co. Waterford, Ireland Clients: Waterford County Council via Roadbridge Ltd Submarine Outfalls and Intakes The 1900m long outfall was constructed from 800mm OD SDR 17.6 polyethylene pipe. A temporary cofferdam was constructed to enable the shore-crossing section to be trenched. The remaining 1500m offshore section was dredged using the spud pontoon backhoe dredger. Two diffusers sections were installed with a total of 10 risers each fitted with a duckbill valve. Location: Gormanston, Ireland Clients: Bord Gais Eireann Engineering, Landfall and Construction Landfall section of the Gas 2025 – 2nd Scotland to Ireland Interconnector at Gormanston. Work included pre dredging trench and pull ashore from lay barge of a 2.0km x 610mm dia steel pipe and a 600m of landline to new compressor station. Location: Tarragona, Spain Client: Repsol Petroleo SA Engineering, SPM, Sealine, Bottom-Pull and Trenching Replacement of a 44” loading sealine & a 12” bunker pipeline, 2000m long laid between the end of a tanker jetty and a single buoy mooring. The pipelines were constructed onshore and pulled approximately 4km offshore. The installation of a new PLEM, tie-in spools and a refurbished CALM buoy was undertaken along with post lay trenching of pipelines with TM7, and hydrotesting of the complete system. Location: Mongstad Oil Refinery, Norway Client: Statoil (s/c European Marine Contractors) Landfall Provided the design and engineering of ground anchors, foundations and a shore based pull-in system required for the pull ashore of the 12” diameter pipeline. The pipeline was fabricated and launched from the DPV lay barge ‘Lorelay’ via an s-curve trajectory and entered a sub-sea bell mouth in 225m of water. The pipeline was then pulled through a pre-drilled directionally drilled rock tunnel some 440m long which terminated within Mongstad Refinery. Location: Castelo Branco, Portugal Client: Transgas (s/c to Visadrag Gas LDA)] Directional Drilled River Crossing Installation of a 300m x 323mm dia gas pipeline under the River Tejo in central Portugal. Part of the gas trunkline linking Portalegre to Guarda. Location: Q16 Field, North Sea, Holland Client: NAM (s/c to DSND) Pipeline Trenching The provision of the seabed pipeline plough PBP4 and operators for the burial of 19km of varying dia in-field pipelines at the Q16 field development, offshore Holland. Location: Esjberg, Demark Client: Dangas (s/c to EMC) Landfall Installation of the landfall section of the South Arne gas pipeline. The 2km x 609mm steel gasline was pulled ashore from a laybarge into a pre-dredged trench by land-based winches. The landfall took place just north of Esjberg on the west coast of Jutland. Location: Carlingford Co. Louth, Ireland Client: Louth County Council Submarine Outfalls and Intakes The construction and installation of a 1330m by 250mm dia MDPE pipe with pre cast concrete weight collars into a pre-dredged rock, sand and silt trench. The diffuser comprised a tideflex valve at the end of the horizontally laid pipe, with the end 50m of pipe protected with pre cast concrete units. The pipe was butt fusion welded onshore into 6 nominal 220m long pipe strings and hydrostatically tested, before launching with pre cast concrete weight collars attached and installed section by section in the pre-dredged trench by the float and sink method. Pipe strings were joined using flanged ends. Location: Otopeni Airport, Romania Client: Air BP Process Aviation fuelling terminal built in Romania to highest standards of safety and reliability in just 11 months, starting with a greenfield site. Construction of rail sidings, access roads, offloading pipework, storage tanks, vehicle loading gantries, a complete fire protection system, tanker service centre and administration offices. The design and construct project was carried out in partnership with Air BP and Romania Fuelling Services. Location: Akrotiri, Cyprus Clients: MOD (Defence Works Services) Sealine and CBM Installation of a 1km x 323mm steel submarine pipeline and PLEM from an offshore Conventional Buoy Mooring to land storage tanks for the import of refined products. Location: Bantry Bay, Ireland Client: Bantry Terminals Ltd (a Land & Marine -Ascons JV) Tanker, Terminals, Sealines and Flowlines Installation of a Single Point Mooring for 320,000 dwt Tankers and the positioning of a 1066mm crude import/export and a 762mm ballast line each 1.5km long between the buoy and tank farm. Pipelines pulled into an inshore drilled, blasted and dredged rock trench by barge mounted winches on the LM Balder. Location: Barcelona, Spain Client: Empressa Metropolitana de Sanedament SA Engineering and Submarine Outfall Installation of a 2.9km x 2.622mm o/d long sea outfall at Barcelona. The steel pipeline was externally coated with reinforced concrete. The pipes were fabricated into 25 strings of approximately 120m on a temporary construction site and then bottom pulled by winches mounted on a pullbarge into a predredged trench. At one point the pipeline crossed under a live gas pipeline. At the offshore end, 15No diffusers were placed in 53m of water. The trench was later back filled. Location: Dublin Eire, Ireland Client: Bord Gais Eireann Engineering, Landfall and Construction Forming part of the Scotland - Eire Interconnector Gas Pipeline project, the works included the fabrication on land and pulling into a dredged trench by barge mounted winches on the LM Balder of a 2km x 610mm dia steel pipeline and the backlay of the pipeline to an AGI Location: Athens, Greece Client: Greek Ministry of Public Works Engineering and Submarine Outfall Installation of twin 2km x 2.4m dia and a 400m x 2.4m dia pre-stressed concrete outfalls at Psyttalia. Sections of pipe were constructed on land, transported to site by barge and laid into a pre-dredged trench from a workbarge. Location: Bologna, Italy Client: SNAM Directional Drilled River Crossing Installation of a two 1220mm dia steel gas pipeline + 2 No. 100mm dia cable ducts in two crossings at Bologna forming part of the duplication of the northern section of the Algerian gas transmission line.
River Samoggia at Sala Bolognese 586m River Idice at Budrio 600m Location: Pernis, Holland Client: Air Products Directional Drilled River Crossing Installation of a 3 pipe bundle 540m long consisting of a 323mm dia air line, a 323mm steel carrier with a 273mm dia steel carrier with 219mm dia insulated oil line and 168mm dia products line under the Oude Maas at Pernis. Location: Wijkaan Zee, Holland Client: BP Netherlands Directional Drilled Landfall Shore approach section of the gas trunk line from Block Q8 offshore Holland. Drilling 850m under sand dunes, beach and out to the 5m water depth below mean low water level. The 250mm dia steel gas pipeline pulled back from reel ship moored offshore. Location: Block Q8 Development, Holland Client: BP EM (s/c to Santa Fe) Pipeline Trenching The post pipelay plough burial of the 14km x 250mm dia steel pipeline from the shore approach section out to the production platform. The pipe was buried I.0m into the sandy seabed using plough PBP3 towed by a DSV. Location: Beirut, Lebanon Client: Conseil de la Ville de Beyrough Engineering and Submarine Outfall Design and construction of a 1.2m dia steel effluent pipeline 2.6km long and an associated 1.5m dia steel 500m long overflow pipeline. Pipes were epoxy lined and coated with a reinforced bitumen enamel with a continuous R.C. weight coating. Pipelines pulled into position by winches mounted on board an L&M barge. Location: Lillebaelt, Demark Client: Dansk Olie & Naturgas SA River and Estuary Crossing Construction and installation of two 762mm dia x 1.5km steel gas pipeline. The pipe trench was formed by dredging prior to pulling pipe into position Location: Dhekelia, Cyprus Client: Electricity Authority of Cyprus Engineering, Sealines and CBMs Supply and installation of 3 buoy CBM system for mooring 50,000 dwt tankers and installation of a submarine pipeline 850m in length x 324mm in dia, for fuel oil intake to power station. Location: Scheveningen, Holland Client: City Council of the Hague Engineering and Submarine Outfalls 2.24m dia x 2.5km primary effluent outfall with 84 diffusers. Mild steel, welded, concrete lined and weight coated. Believed to be the largest dia pipe installed by the bottom tow technique. 356mm dia x 10km sludge outfall, mild steel, welded epoxy lined and bitumen wrapped with continuous concrete weight coating. Land & Marine's longest pulled outfall. Both pipelines were pulled into position by winches mounted on an L&M workbarge. Pipelines installed in pre-dredged trench to give 2m of cover. L&M acted as Consulting Engineer. |