rotech worldwide

Rotech Subsea Track Record

We have a very extensive Track Record. For the full list up to 30/03/11 click here

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New Installations + case study
2009 2.6km of 16" Pipeline Trenching Persian Gulf J Ray McDermott Soft Clay & Sand 3-7m Europe
2002 Backfilling Of 45km trench Mexico Horizon Sands & Clay 40m-60m Americas
2008 Cable Trenching Qatar J Ray McDermott Soft Sandy Clay 65m Europe
2008 New Installation Venezuela Z&P Soft mud/clay 150m Americas
2004 Numerous 8” – 6” Crossings Mexico Global Ind./Pemex Firm Clay 38m-55m Americas
2009 Pipeline Trenching U.S. G.O.M Cal-Dive Soft pre-disturbed material 61m USA
2008 Pipeline Trenching Mexico Oceanografia Medium Clay 50m Americas
2005 Pipeline Crossing Preparation Mexico Condux/Pemex Firm Clay 50m Americas
2008 Pipeline Crossings Mexico Oceanografia Firm Clay 35m Americas
2007 Pipeline Crossings Saudi Arabia Global Industries Clayey Sand 9-36m Europe
2009 Pipeline Excavation 17,500' of 20" Pipeline U.S. G.O.M Global Industries Soft Clay & Sand 76m USA
2007 Pipeline Post Trenching Mexico Condux/Pemex Firm Clay 50m Americas
2010 Pipeline post trenching, Windfarm South North Sea Subocean Medium Clay & Chalk 2 -35m Europe
2006 Pipeline Trenching U.S. G.O.M Prime Offshore Sand 46m USA
2006 Pipeline Trenching Mexico Horizon Soft Clay 60m Americas
2006 Pipeline Trenching U.S. G.O.M Global Ind./Devon Soft Clay 40m USA
2006 Pipeline Trenching U.S. G.O.M Global Ind./Apache Firm Clay 25m USA
2006 Pipeline Trenching Trinidad Acergy Soft Mud 75m Americas
2004 Pipeline Trenching Mexico Global Ind./Pemex Firm Clay 40m-60m Americas
2003 Pipeline Trenching Mexico Global Industries Clay 40m-60m Americas
2005 Pipeline Trenching & Crossing Preparation Mexico Condux/Pemex Firm Clay 40m-60m Americas
2005 Pipeline Trenching 30” Pipeline Mexico Condux/Pemex Clay 45m Americas
2009 Pipeline Trenching and Freespan Rectification Iran client name subject to NDA Soft, Silty Clay 64m Europe
2005 Post Trenching 10” Pipeline Mexico Condux/Pemex Clay 20m-30m Americas
2005 Post Trenching 10” Pipeline Mexico Condux/Pemex Clay 20m-30m Americas
2005 Post Trenching 10” Pipeline Mexico Global Ind./Pemex Clay 50m Americas
2005 Post Trenching 11” Pipeline Mexico Global Ind./Pemex Clay 20m-30m Americas
2005 Post Trenching 11” Pipeline Mexico Global Ind./Pemex Clay 20m-30m Americas
2004 Post Trenching 12" pipleine India Clough/Niko Firm Clay 2m-5m Asia Pacific
2007 Post Trenching 12” Pipeline U.S. G.O.M Chevron Soft Clay 40m USA
2006 Post Trenching 12” Pipeline U.S. G.O.M Global Ind./Chevron Soft Mud 70m USA
2006 Post Trenching 12” Pipeline U.S. G.O.M Global Ind./ElPaso Soft Clay 15m USA
2007 Post Trenching 12” Pipelines Venezuela Z&P/ConocoPhillips Soft Mud 10m Americas
2007 Post Trenching 12” Pipelines Venezuela Z&P/ConocoPhilips Soft Mud 5-25m Americas
2005 Post Trenching 12”, 18” & 20” Pipelines Mexico Global Ind./Pemex Firm Clay 40m-55m Americas
2006 Post Trenching 12”, 24” & 36” Pipelines Mexico Global Ind./Pemex Sand & Clay 66m Americas
2007 Post Trenching 16” Pipeline Mexico Oceanografia Firm Clay 50m Americas
2007 Post Trenching 16” Pipelines Mexico Condux/Pemex Firm Clay 33m Americas
2007 Post Trenching 16” Pipelines Mexico Condux/Pemex Firm Clay 33m Americas
2004 Post Trenching 2 x 12" Pipelines India Clough/Niko Firm Clay 4m-20m Asia Pacific
2004 Post Trenching 20" Pipeline Indonesia Saipem/Total Firm Clay 5m-10m Asia Pacific
2007 Post Trenching 20” & 24” Pipelines Mexico Horizon/Pemex Firm Clay 80m Americas
2004 Post Trenching 20” & 24” Pipelines Mexico Global Ind./Pemex Firm Clay 40m-50m Americas
2007 Post Trenching 20” Pipeline Mexico Oceanografia Firm Clay 40m Americas
2007 Post Trenching 20” Pipeline U.A.E. COMACOE Sandy Silt 5-21m Europe
2003 Post Trenching 216m Shore Approach Of 30" Pipeline Cameroon Global Industries Sand & Clay 3m-8m Asia Pacific
2004 Post Trenching 24" Pipeline Mexico Global Ind./Pemex Firm Clay 40m-50m Americas
2007 Post Trenching 24’ Pipeline Mexico Condux/Pemex Firm Clay 50m Americas
2006 Post Trenching 24” Pipelines Mexico Horizon Soft Clay 80m Americas
2005 Post Trenching 30” Pipeline Mexico Condux/Pemex Clay 45 Americas
2007 Post Trenching 36” & 24” Pipelines Mexico Oceanografia Firm Clay 35m Americas
2007 Post Trenching 36” Pipeline Mexico Oceanografia/Pemex Firm Clay 40m Americas
2006 Post Trenching 36” Pipeline Mexico Oceanografia Soft Mud 80m Americas
2003 Post Trenching 600m Of 24" Pipeline In Clay Indonesia J Ray McDermott Firm Clay 5m Asia Pacific
2004 Post Trenching 8" Pipeline Mexico Global Ind./Pemex Firm Clay 40-50 m Americas
2006 Post Trenching 8” & 10” Pipelines U.S. G.O.M Global Ind./Chevron Soft Mud 65m USA
2007 Post Trenching 8” Pipelines U.S. G.O.M Con-Dive/Prime Offshore Soft Clay 40m USA
2007 Post Trenching 8” Pipelines U.S. G.O.M Con-Dive/Prime Offshore Soft Clay 40m USA
2002 Post Trenching 9km Of Various Sized Pipelines Mexico Horizon Sands & Clay 40m-60m Americas
2005 Post Trenching Of a 10” Pipeline Mexico Global Ind./Pemex Firm Clay 50m Americas
2005 Post Trenching Of a 20” Pipeline Mexico Global Ind./Pemex Firm Clay 40-55m Americas
2003 Post Trenching Of Various Sized Pipelines Egypt Stolt Offshore Sand With No Cohesion 2m-10m Europe
2006 Post Trenching Pipeline Mexico Condux/Pemex Soft Clay 45m-65m Americas
2006 Post Trenching Pipeline Mexico Condux/Pemex Soft Clay 45-65m Americas
2003 Post Trenching Various Pipelines & Umbilicals Egypt Stolt Offshore Sand & Clay 8m-20m Europe
2002 Post Trenching Various Sized Pipelines Egypt Stolt Offshore Sand With No Cohesion 2-8m Europe
1999 Post-Trenching 70km Of 36" Pipeline Egypt GUPCO/BP Sands & Light Clay 5m-65m Europe
2000 Post-Trenching 70km Of 36" Pipeline - continued Egypt GUPCO/BP Sands & Light Clay 5m-65m Europe
2008 Presweeping approaches to wind turbines Belgium Dredging International Rock Dump 20m Europe
2007 PreSweeping Sandwaves & 20” Pipeline Trenching India Global Ind./British Gas Soft Sand & Clay 25-40m Asia Pacific
2008 Seabed Leveling U.S. G.O.M Chevron Soft Clay 40m USA
2002 Seabed Preparation For Jacket installation East Timor Sea J Ray McDermott Sands & Clay 85m Asia Pacific
2003 Seabed Preparation For Jack-up Rig Spud Cans Bay Of Bengal IEV/Premier Oil Sand 100m Asia Pacific
1998 Seabed Preparation For Rock dumping Wales Balfour Beattie/Bechtel Silts & Clay 10m Europe
2006 Spud Can Excavation Vietnam KNOC Sand 5m Asia Pacific
2007 Trenching 36” & 12” Pipeline Crossing Mexico Global Ind./Pemex Sand & Mud 50m Americas
Salvages/Decommissioning + case study
2009 20" Pipeline Deburial U.S. G.O.M Legacy Offshore Soft Clay 204m USA
2008 60" Caisson Excavation  U.S. G.O.M Devon Energy  Soft Clay 8m USA
2009 Backfill Dispersal U.S. G.O.M Chevron Soft Backfill 42m USA
2006 Backfilling Well Excavation U.S. G.O.M Magnum Hunter Soft Mud 50m USA
2008 Barge Salvage U.S. G.O.M Rozel  Sandy/Silty Clay 3.5m USA
2009 Caisson Excavation U.S. G.O.M Proserv Medium To Soft clays 54m USA
2009 Caisson Excavation U.S. G.O.M Energy XXI Mixed Clays 40m USA
2009 Caisson Excavation U.S. G.O.M Express Mixed Clays 22m USA
2009 Caisson Excavation U.S. G.O.M Energy XXI Mixed Clays 40m USA
2009 Caisson Excavation U.S. G.O.M Tetra Technologies Medium Clay  51m USA
2009 Caisson Excavation U.S. G.O.M Explore Enterprises Silty Sand 20m USA
2009 Caisson Excavation U.S. G.O.M Tetra Technologies Soft Clay 76m USA
2009 Caisson Dispersal U.S. G.O.M Tetra Technologies Soft Clay 47m USA
2008 Conductor Excavation  U.S. G.O.M Wild Well Control Soft Clay 37m USA
2008 Conductor Excavation U.S. G.O.M Wild Well Control Soft Clay 40m USA
2006 Conductor Excavation U.S. G.O.M Tetra Technologies Soft Mud 70m USA
2006 Conductor Excavation U.S. G.O.M Tetra Technologies Soft Clay 30m USA
2008 Debris basket collection and deck salvage U.S. G.O.M Wild Well Control Medium Clay 25m USA
2009 Debris Dispersal U.S. G.O.M Wild Well Control Soft Clay 50m USA
2009 Debris Dispersal U.S. G.O.M Wild Well Control Soft Clay 66m USA
2002 De-burial Of Jack-up Spud Cans Dutch, North Sea Noble Drilling Sands To Firm Clay 50m-60m Europe
2009 Deck Salvage Excavation U.S. G.O.M Apache Soft Mud 69m USA
2009 Drill Cutting Dispersal Offshore China CTC Marine/COEC Mixed Clays 107m Asia Pacific
2008 Heat Exchanger Trenching East Timor SWG Sandy/Silty Clay 80-100m Asia Pacific
2009 Jacket and Debris Excavation U.S. G.O.M Apache Soft Clay 61m USA
2009 Jacket Excavation U.S. G.O.M Apache Soft Clay 72m USA
2007 Jacket Leg Excavations U.S. G.O.M Chet Morrison Contractors Soft Clay 50m USA
2005 Jacket Leg Excavations - Decommissioning U.S. G.O.M Cal Dive/Anadarko Mud 70m USA
2004 Jacket Leg Excavations – Decommissioning Indonesia IEV/Shell Sand & Soft Clay 85m Asia Pacific
2004 Jack-up Rig Leg Recovery U.S. G.O.M Titan/Ensco Firm Clay 110m USA
2008 Mooring Wire Abandonment New Zealand TS7 Silt 115m Asia Pacific
2010 Pipeline Trenching U.S. G.O.M Global Industries Mud 183m USA
2008 Platform Abandonment U.S. G.O.M Wild Well Control Soft Mud 27m USA
2008 Platform Deck Salvage U.S. G.O.M Apache Soft Clay 70m USA
2010 Platform Excavation U.S. G.O.M McMoran Soft Soils 34m USA
2009 Platform Excavation U.S. G.O.M Epic Divers Soft 95m USA
2007 Platform Leg Excavation U.S. G.O.M Con-Dive/ENI Soft/Medium Clay 70m USA
2009 Platform Leg excavations U.S. G.O.M OSFI (new client) Soft Mud USA
2009 Platform Recovery U.S. G.O.M Wild Well Control Medium Clay 70m USA
2009 Platform Recovery U.S. G.O.M Wild Well Control Medium Clay 76m USA
2009 Platform Recovery U.S. G.O.M Wild Well Control Medium Clay 30m USA
2009 Platform Salvage U.S. G.O.M Chevron 23kPa 30m USA
2009 Platform Salvage U.S. G.O.M Chevron Medium Clay 55m USA
2009 Platform Salvage U.S. G.O.M Pioneer Soft Clay 70m USA
2008 Platform Salvage U.S. G.O.M Global Industries Soft Clay 70m USA
2008 Platform Salvage U.S. G.O.M Global Industries Soft Clay 70m USA
2008 Platform Salvage U.S. G.O.M Global Industries Soft Clay 72m USA
2008 Platform Salvage U.S. G.O.M Global Industries/Apache Soft Clay 72m USA
2007 Platform Salvage Excavation U.S. G.O.M Howard Energy Soft Clay 70m USA
2007 Platform Salvage/Well Excavations U.S. G.O.M Chevron Soft/Firm Clay 40m USA
2005 Post Hurricane Conductor Deburial U.S. G.O.M BP Mud 40m USA
2003 Providing Access For Hydraulic Pipeline Cutter Singapore Van Oord Rock & Backfill Dispersal 20m Asia Pacific
2010 Subsea Assembly U.S. G.O.M International Offshore Services Hard Clays 17m USA
2008 Trunkline Excavation U.S. G.O.M Cal-Dive Soft Mud 38m USA
2008 Two 26" well-heads 15' BML U.S. G.O.M Wild Well Control Medium Clay 72m USA
2009 Well Head Excavation U.S. G.O.M Wild Well Control Medium Clay; 25m USA
2009 Well Head Excavation U.S. G.O.M Wild Well Control Medium Clay  60m USA
2008 Well Intervention U.S. G.O.M Chevron  Soft Clay 42m USA
2006 Well-Head & Jacket Leg Excavation U.S. G.O.M Newfield Exploration Soft Clay 32m USA
2001 Well-head Deburial Malaysia Shell Sands & Light Clay 80m Asia Pacific
2006 Well-Head Excavation U.S. G.O.M Newfield Exploration Firm Clay 30m USA
2006 Well-Head Excavation U.S. G.O.M Magnum Hunter Soft Mud 50m USA
2006 Well-Head Excavation U.S. G.O.M Newfield Exploration Firm Clay 30m USA
2006 Well-Head Excavation U.S. G.O.M Magnum Hunter Firm Clay 45m USA
2008 Well-Head Excavation U.S. G.O.M Chevron Medium Clay 46m USA
2008 Well-Head Excavation  U.S. G.O.M Wild Well Control Medium Clay  40m USA
2008 Well-Head Excavation  U.S. G.O.M Chevron Soft Clay 45m USA
2009 Wellhead excavations U.S. G.O.M Chevron Mixed Clays 43m USA
Inspection, Maintenance, & Repair + case study
2009 350m of 10" Pipeline Deburial Australia DOF Subsea Silt & Sand 15m Asia Pacific
2009 50m Deburial of 132mm Cable North Sea Subocean Sand 2-7m Europe
2010 Cofferdam excavation U.S. G.O.M Tetra Technologies Sand and Shells 33m USA
2010 Pipeline Excavation U.S. G.O.M. Woodside Soft and Hard Soils 15m USA
2010 Umbilical Trenching U.S. G.O.M. ERT Soft to Very Hard 60m USA
2010 Conductor Clearance U.S. G.O.M Tetra Technologies Soft Clay 91m USA
2010 Debris Dispersal India Hallin Marine Rock Dump 65m Asia Pacific
2009 Drill Cutting Dispersal Offshore China CTC Marine/COEC Mixed Clays 107m Asia Pacific
2009 Drill Cutting Dispersal Romania  GSP (new client) Soft Clay 95m Europe
2009 Lift Boat Excavation U.S. G.O.M Bosarge/Exxon Soft Mud 15m USA
2008 Pipeline Deburial 2,000' of 10" Pipeline 15'-20' BML U.S. G.O.M Global Industries Firm Clay 152m USA
2008 Pipeline Deburial 2,000' of 12" Pipeline 14' BML U.S. G.O.M Oceaneering International Soft Mud 80m USA
2008 Pipeline Deburial of damaged 6" Pipeline U.S. G.O.M Cal-Dive International Soft Mud 67m USA
2009 Pipeline Excavation U.S. G.O.M Deep Marine Technology Medium Clay 167m USA
2008 Pipeline Excavation 1,200' of 24" Pipeline U.S. G.O.M Cal-Dive International Soft Clay 60m USA
2008 Pipeline Excavation 6" Pipeline buried 6'-8' BML U.S. G.O.M Madcon Soft Clay 67m USA
2009 Pipeline excavation of 3000' of 36" Pipeline U.S. G.O.M Cal-Dive International Soft Mud 18m USA
2009 Pipeline excavation of 3000' of 36" Pipeline U.S. G.O.M Cal-Dive International Soft Mud 18m USA
2009 Pipeline excavation: 2,000' of 12"  U.S. G.O.M Global Industries Soft Clay & Sand 120m USA
2010 Pipeline Trenching Norway Subsea 7 Soft 70m Europe
2009 Pipeline Trenching U.S. G.O.M Epic Divers Soft Clay 84m USA
2009 Rock Dump Dispersal Russia Sakhalin Energy (new client) Rock Dump 50m Europe
2009 Rock Dump Dispersal 8" Pipeline North Sea Bibby Offshore/Talisman Rock Dump 116m Europe
2010 Seabed Preparation Turkmenistan Petronas Hard Clays 61m Middle East
2009 Tie-in Excavations U.S. G.O.M Global Industries / Stone Energy Soft Mud 206m USA
2009 Toppled Platform Recovery With Soil Strengths Measured To 140 kPa U.S. G.O.M Chevron Soft Mud to Hard Clay 37m USA
2009 VK 20" Visual Inspection U.S. G.O.M Cal-Dive / Enterprise Mudslide Area 204m USA
2004 Deburial Of 32" & 24" Pipelines For inspection UK, North Sea Subsea7/Total Rock Dump Dispersal 110m Europe
2004 Deburial Of A Pipeline U.S G.O.M Global Ind./Chevron Texaco Sand 210m USA
2003 Deburial Of Mine Outfall Pipes & Area Clearance NE Coast England Briggs Marine Silt 14m Europe
2002 Freespan Correction Gulf Of Thailand Global Industries Mud Waves 80m Asia Pacific
2008 Pipeline Deburial North Sea Bibby Offshore/Talisman Soft Clay 140m Europe
2007 Pipeline Deburial UK, North Sea Acergy/BP Soft Clay  30m Europe
2007 Pipeline Deburial U.S. G.O.M Chevron Firm Clay 20m USA
2007 Pipeline Deburial U.S. G.O.M Chevron  Firm Clay 20m USA
2005 Pipeline Deburial U.S. G.O.M Oceaneering/Chevron Mud 220m USA
2004 Pipeline Deburial UK, North Sea Allseas Sand 15m-25m Europe
2004 Pipeline Deburial U.S. G.O.M Global Ind./Chevron Texaco    Mud 40m-60m USA
2004 Pipeline Deburial U.S. G.O.M Cal Dive/Williams Mud 290m  USA
2004 Pipeline Deburial  U.S. G.O.M Oceaneering Mud 75m USA
2006 Pipeline Trenching For Repair U.S. G.O.M BP Soft Mud 187m USA
2006 Pipeline Trenching For Repair U.S. G.O.M Onyx/Enterprise Soft Mud 230m USA
2006 PipelineTrenching For Repair U.S. G.O.M BP Soft Mud 200m USA
2005 Post Hurricane Pipeline Repair U.S. G.O.M Oceaneering/Shell Mud 1000m USA
2005 Post Hurricane Repair Work U.S. G.O.M Global Ind./Chevron Mud 10m USA
2005 Post Hurricane Repair Work U.S. G.O.M Global Ind./Chevron Mud 20m–40m USA
2005 Post Trenching 44” Pipeline U.S. G.O.M Chet Morrison/BP Sand 3m–6m USA
2005 Post Trenching Of a 30” Pipeline U.S. G.O.M CHET/SNG Compacted Sand/Clay 3m USA
2004 Seabed Preparation & Post Trenching 24” Pipeline  Egypt Stolt/Burullus Sand & Soft Clay 12m-40m Europe
2004 Seabed Preparation For Habitat Installation North Sea Allseas Sand & Soft Clay 45m Europe
2007 Valve Cover Clearance U.S. G.O.M Chet Morrison Contractors Soft Clay 50m USA
2008 10" Pipeline deburial NW Australia Subsea7/Woodside  Silty Sand & Shells 150m  Asia Pacific
2008 Cable Trenching & De-Burial  UK, North Sea  Subocean/E-On  Sand & Silt  2–12m Europe
Tie-Ins + case study
2005 Pipeline Deburial North Sea Subsea7/Total Sand 110m Europe
2004 Post Trenching Of two Pipelines North Sea Subsea 7/Total Sand 2m-5m Europe
2005 Pre & Post Trenching Sakhalin, Russia Jan De Nul/Saipem Sand 10m-30m Europe
2005 Rock Dump Dispersal Sakhalin, Russia Jan De Nul/Saipem Large & Small Rocks 30m Europe
2004 Rock Dump Dispersal 300 - 400 mm W Australia Technip-Subsea 7/Woodside Rock Dump Dispersal 125m Asia Pacific
2004 Rock Dump Dispersal For Pipeline Deburial UK, North Sea Subsea 7/Total Rock dump 100mm 100m-110m Europe
2004 Seabed Preparation For Tie-In Installation UK, North Sea Subsea 7/Total Sands & Very Soft Clay 43m Europe
2006 Subsea Tie In Trenching   U.S. G.O.M Horizon Firm Clay 30m USA
2006 Subsea Tie In/8” Pipeline Deburial U.S. G.O.M BP Soft Clay 210m USA
2007 Subsea Tie-In Excavation U.S. G.O.M Con-Dive/NNG Soft Mud 55m USA
2007 Trench Clearing/Rock Dump Dispersal Sakhalin Saipem Sandy Sediment 35m Europe
Cable Trenching + case study
Cable Trenching North Sea Van Oord Sand 2m-5m Europe
Post Trenching 1.1km Of 6" fibre-optic conduit Scotland Stolt Offshore Sands & Light Clay 2m-10m Europe
Post Trenching 200 mm Cable UK, North Sea Cns/Vestas/Van Oord Soft Clay 8m-15 m Europe
Post Trenching Of 400m Of 35mm fibre-optic Cable Scotland Stolt Offshore Sands & Light Clay 10m-15m Europe
Pre-Trenching Cable Mexico Demar/Pemex Firm Clay 30m-55m Americas