Evaluating logistical challenges of offshore module transportation


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The logistical challenges of offshore module transportation are indeed significant, to say the least. Find out how to deal with these challenges – from planning during module design stage all the way to engineering and risk management.

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Evaluating logistical challenges of offshore module transportation

  1. 1. Welcome to
  2. 2. Image goes here –or colorblock Evaluating Logistical Challenges of Offshore Module Transportation Presented By: Craig Tornga, Vice- President Crowley Solutions, Inc. August 23, 2012
  3. 3. Agenda for Today’s Presentation• Introduction of Crowley• Planning at the Module Design Stage• Heavy Lift Vessels for Modular Transportation• Planning & Engineering - Heavy Lift Modular Transportation• Risk Management• Question & Answer Session
  4. 4. Company OverviewFamily Owned• Thomas Crowley founded the company in 1892.• He began with a $80 Whitehall 18 foot rowboat transporting ships crews in San Francisco Bay, and a dream.Crowley Profile:• Over $1.6 billion dollars in annual income.• 4,300 employees worldwide.• Worldwide Business capabilities with primary operations from the Arctic to Latin America.• 250 vessel fleet.• Diversified transportation services
  5. 5. Crowley SolutionsCrowley Solutions is a project management organization providing marinesolutions as a prime contractor for energy and resource extractionindustries. We provide a wide array of turnkey solutions to our clientsincluding project management, marine operations, naval architecture andmarine salvage. We provide the advantage of a single point of contact thatensures coordination of the entire breadth of Crowley service capabilities. Our Service Offerings: Our Area of Expertise: • Project Management • Arctic Logistics & Operations • Fuel Management • Technical Beach Landings • Engineering • Remote Site Operations • Vessel Design and Build • Complex Marine Projects • Emergency Response • High Bollard Pull Offshore Rig/Platform Towing • Ocean Towing • Heavy Lift Barge Transportation • Project Concept Studies
  6. 6. Crowley Heavy Lift Transport Projects• Shell Sakhalin sealift 2004 and 2005• Exxon Neftigas sealift 2003, 2012• Chevron Angola sealift 2010• Prudhoe Bay, Alaska sealifts 1968-2012 Over 1.4mm Tons of Modules transported into the Arctic• Chevron Rankin B 2012 (Offshore Western Australia)• Gulf of Mexico – up to 12,000 Ton Modules transported
  7. 7. Heavy Lift Vessels for Modular Transportation• Heavy Deck Barges – Shorter Routes – Shallow Discharge – Grounding Required (If barge designed for it)• Heavy Deck Carriers – Faster than Tug & Barge – No Tow Line• Heavy Lift Ships (Load On – Load Off) – Smaller Modules that can be Lifted – Fast Mode• Semi Submersible Heavy Lift Ship (Roll On Roll Off) – Highly Stable – Long Routes – Fast Mode
  8. 8. Modular Transport – Tug & Barge
  9. 9. Modular Transport – Heavy Deck Carrier
  10. 10. Modular Transport – Heavy Lift Ship (Lift On – Lift Off)
  11. 11. Semi-Submersible Heavy Lift Ship (Roll On Roll Off)
  12. 12. Planning at the Design Stage• Designing module with consideration of static and dynamic loads for the intended vessel – Matching the module to the structure of vessel – Taking into account the motions of the vessel and module, given the proposed route• Vessel selection – classed, sufficient deck space and strength, motion response adequate to not overstress the cargo• Project management team• Fail to Plan – Plan to Fail – Expense for matting / grillage – Vessel or cargo damage – Project delays – Vessel modifications
  13. 13. Planning & Engineering - Heavy Lift Modular Transportation Load Planning • Height of dock above water at low and high water • Water depth • Tidal conditions – use the tides when you can • Live load or dead load • Weight control and center of gravity • Dock strength • Vessel deck load capacity • Vessel structure – frames and bulkheads • Ramps / transition plates • Load plans • Stow Plans • Ballast Plans • Mooring plans • Sea Fastenings / Tie Downs
  14. 14. Planning & Engineering - Heavy Lift Modular Transportation Transport Planning • Voyage Plans – Route – Met Ocean Data / Studies • Sea state for season & environmental conditions for route • Vessel heading and speed – Vessel Structure Analysis • Motions Analysis • Stability of the vessel – Reactions between the vessel and cargo – Ports of Shelter – Bunkering – Assist tugs – Depths and air height – Transit Ballast Plans
  15. 15. Planning & Engineering - Heavy Lift Modular Transportation Discharge Planning • Same dock and water considerations as load site • Roll off or lift off • Live or dead discharge • Grounded Discharge – Beach landings – Shallow water • Offshore Discharge – Float over deck Installation – Heavy lift installation vessel lift off – Float 0ff (For Vessels being Transported by Semi- submersible Vessels • Ballast Planning • Weather window for removal of sea-fastenings and cargo
  16. 16. Planning & Engineering - Heavy Lift Modular Transportation
  17. 17. Risk Management• Risk Assessment – Sea State – Routing Plans – Safe Ports of Refuge – Piracy – SIMOPS – Cargo Handling – Suitability of Load & Discharge Sites – Quality & Capabilities Analysis of Vessels• Risk Mitigation – Development of Alternative Plans - contingencies – Engineered Solutions
  18. 18. Questions and AnswersBe sure the Visit us at the Crowley Solutions Booth Thank You for Attending!
  19. 19. Welcome to