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Wrecks of the World II

Wrecks of the World II. Wreck Remediation and Pollution Recovery – Case Studies Zach Malinoski. Factors Driving Wreck Removal Approach. Minimize Technical Risk? R&D innovative recovery approach/ technology before application Increase workforce and equipment. Minimize Schedule?

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Wrecks of the World II

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  1. Wrecks of the World II Wreck Remediation and Pollution Recovery – Case Studies Zach Malinoski

  2. Factors Driving Wreck Removal Approach • Minimize Technical Risk? • R&D innovative recovery approach/ technology before application • Increase workforce and equipment • Minimize Schedule? • Apply innovative recovery approach/technology • Increase workforce and equipment SUCCESSFUL WRECK AND POLLUTION REMEDIATION SCHEDULE TECHNICAL COST • Minimize Cost? • Reduce schedule with innovative recovery approach/technology • Increase schedule with proven techniques

  3. JACK-UP MODU - GoM • Drifted 5000’, capsized, and sank at 113’ water depth • Most fuel tanks damaged during IKE • Arrangement & depth allowed traditional recovery techniques • Challenges- • Limited floating resources in wake of Ike response • Limited weather window

  4. JACK-UP MODU - GoM • Systematic inspection via divers & taps • Excavation required to access smaller tanks and barrel stores • ~36K gallons recovered 2008 • Additional pockets discovered & removed in 2009 when recovery efforts continued

  5. Hot Tap Recovery

  6. Hot Tap Recovery

  7. Dredger – Sri Lanka • May 2009 – Aground on tetrapod breakwater during monsoon • Weather prevented recovery efforts until January 2010 • POLs observed released from May onward

  8. Dredger – Sri Lanka • Wreck severely damaged during monsoon • Survey discovered one small hydraulic oil tank intact – oil was removed via tap • In-situ Cut Up – pieces sized to keep fuel/POL tanks intact

  9. Challenges for World Wide Wreck Removal • Create environment that encourages quick POL recovery • Recovery rates higher and costs lower when POLs recovered from wreck instead of water • Limit responder third-party liability exposure • Cost Effective Assets & Technologies for: • Remote Sensing • Saturation Diving • Deepwater Recovery • Surface Platforms capable of operating in adverse weather conditions

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