20041201 - IMCA Presentation: DP in a hurry - December 2004, Singapore


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  • It is important to note that this guidance note applies equally to other operations in our business such as ROV, Trenching, Ploughing, Cable work, DP Accom support.
  • 20041201 - IMCA Presentation: DP in a hurry - December 2004, Singapore

    1. 1. “ DP in a hurry” Friday 3 rd December 2004, Singapore Mike Meade
    2. 2. “ DP in a Hurry” <ul><li>Or to give it its full title; </li></ul><ul><li>“ Mobilising a Vessel of Opportunity for DP Operations in the Subsea Sector” </li></ul><ul><li> Vessel of Opportunity = VoO </li></ul>
    3. 3. What is a “Vessel of Opportunity” ? <ul><li>A vessel whose primary work role is not SUBSEA but which is ‘fit for purpose’ for the job to be undertaken. They are usually ‘smaller’ vessels. </li></ul><ul><li>‘ fit for purpose’ – is an understanding that the vessel complies in all respects to rules and regulations as imposed on larger ‘purpose built’ vessels. </li></ul>
    4. 4. A Practical approach <ul><li>This presentation will use a few specific examples on vessels here in Asia to work through the elements required to the IMCA guidance note; </li></ul><ul><li>IMCA D035 “The selection of Vessels of opportunity for Diving Operations”…… </li></ul><ul><li>… ..and other ‘Subsea operations’. </li></ul>
    5. 5. A typical vessel of Opportunity ? <ul><li>Seacor Achiever </li></ul><ul><li>Built 2003, </li></ul><ul><li>71m LOA, </li></ul><ul><li>5506 BHP, </li></ul><ul><li>DP2 (4 ref systems), </li></ul><ul><li>42 man Accommodation, </li></ul><ul><li>500m2 deck </li></ul>
    6. 6. The ‘Job’ in hand. What to consider. <ul><li>Task to be undertaken </li></ul><ul><li>Depth of Operation </li></ul><ul><li>Duration and Scope of Diving (if any) </li></ul><ul><li>Environmental conditions </li></ul><ul><li>Accommodations and Messing </li></ul><ul><li>Clients (how many) and Office space </li></ul><ul><li>Above are all covered in the Guidance note (IMCA D035) and to be used in conjunction with IMCA M 149 Common Marine Inspection Document </li></ul>
    7. 7. SAFETY <ul><li>As ever ‘Paramount’. Project ‘specific’ Safety plans are needed. </li></ul><ul><li>Important to produce Bridging Documentation between vessel / diving contractor and those of the client. </li></ul>
    8. 8. ..more Safety <ul><li>When ‘Diving’ extra caution needed as Marine crew may not be familiar / understand the importance of ‘men in the water’. </li></ul><ul><li>Class, ISM, SOLAS, ISPS and STCW – a minimum ! </li></ul><ul><li>IMCA M 149 ‘Common Marine Inspection Document’ </li></ul><ul><li>Life saving appliances (extra). FRC with crane </li></ul><ul><li>Fire Fighting Equipment </li></ul><ul><li>Marine Crew Competence – worth its own slides (see later)! </li></ul>
    9. 9. Permit to Work system <ul><li>We experience problems with Permit systems. Most ‘supply vessels’ have a Marine centric PTW system. </li></ul><ul><li>It important that the PTW is ‘bridged’ when working up the HSE plan for the job. </li></ul><ul><li>The last thing you need is 3 PTW systems working in parallel (I have seen this). </li></ul><ul><li>In short, choose the most appropriate, bridge it and keep it simple. </li></ul><ul><li>A simpler operation usually leads to a safer one ! </li></ul>
    10. 10. Standard Operating Procedures <ul><li>Marine Management (ISM system) </li></ul><ul><li>Safety Plans </li></ul><ul><li>Emergency and Contingency Procedures </li></ul><ul><li>Recent IMCA M149 (Marine Inspection) </li></ul><ul><li>Undesired event reporting (bridge it!) </li></ul><ul><li>Mooring / anchoring / DP procedures </li></ul>
    11. 11. Example of Emergency Flowchart
    12. 12. SOP – DP Procedures <ul><li>Does your average DP2 Supply vessel have ‘Diving’ (or Subsea operations) procedures? </li></ul><ul><li>Short answer is not. </li></ul><ul><li>Either choose a contractor who has the experience and has developed such procedures (and checks) or </li></ul><ul><li>… ..be prepared to spend time and resources to develop Subsea / Diving SOP’s with the Marine Subcontractor. </li></ul><ul><li>There is no ‘off the shelf’ manual – all boats are different – this makes the people MORE important. </li></ul>
    13. 13. Deck and Working Areas <ul><li>You need a ‘big deck’ </li></ul><ul><li>No matter how big your ‘deck’ is, the client always wants a bigger one ! </li></ul>500m2
    14. 14. ‘ Deck’ - Things to consider <ul><li>Area – Footprint and layout of equipment and ancillaries. </li></ul><ul><ul><li>For a small SAT system – 500m2 just about cuts it. </li></ul></ul><ul><ul><li>Air Diving, Trench, ROV – 500m2 – OK </li></ul></ul>Be imaginative, work ‘above’ the deck
    15. 15. Freeboard / Stability – things to consider <ul><li>‘ Point Loading’ and variable deck loading </li></ul><ul><li>Wet decks not suitable for Diving controls / operations </li></ul><ul><li>Stability wrt plant </li></ul><ul><li>and equipment </li></ul><ul><li>‘ Moments’ exerted by </li></ul><ul><li>Overside equipment </li></ul>
    16. 16. … more Deck <ul><li>Freeboard >1.5M ideal. Sometimes hard in Asia ! </li></ul><ul><li>Plan suitable Diver launch and recovery areas (note no moonpools on most VoO’s) </li></ul><ul><li>Low freeboard </li></ul><ul><li>vessels to have </li></ul><ul><li>suitable dive ladders </li></ul><ul><li>Higher freeboard </li></ul><ul><li>vessels to have </li></ul><ul><li>‘ mechanical’ means of </li></ul><ul><li>launch and recovery </li></ul><ul><li>of Divers. </li></ul>
    17. 17. DP Redundancy – Plant and machinery <ul><li>Its not just DP ‘boxes’. </li></ul><ul><li>Ensure machinery is fully redundant and operated that way – Fuel – Cooling – Buss Ties. </li></ul><ul><li>Check on ‘Planned Maintenance’ – look for an operator who ‘cares’. </li></ul><ul><li>Main engine, thruster location to be consistent with where the ‘people’ or ‘machines’ are going to be working </li></ul><ul><li>Make sure tether length strategy is worked out…especially in shallow water ! </li></ul>
    18. 18. Tether length strategy
    19. 19. Dynamic Positioning <ul><li>Classes 1 thru 3 </li></ul><ul><li>Class 1 should not be used for Diving </li></ul><ul><li>Class 2 (in Asia) is used for diving </li></ul><ul><li>Class 3 has the highest levels of redundancy (sensitive operations and Diving (N Sea)) </li></ul><ul><li>IMCA M 103 (Guidelines for Design and Operation of DP Vessels) </li></ul><ul><li>‘ Key’ Personnel should have appropriate training and experience….. </li></ul>
    20. 20. Dynamic Positioning <ul><li>A modern VoO DP Bridge </li></ul>
    21. 21. Dynamic Positioning <ul><li>A modern VoO DP Bridge – The things that matter….. </li></ul>
    22. 22. DP Qualified Crew <ul><li>The ONLY body that certifies DP operators is the Nautical Institute </li></ul><ul><li>NI issue Logbooks but you can also make your own. </li></ul><ul><li>NI ONLY certify Deck Officers (DP Operators) </li></ul><ul><li>33 Schools offer the training that goes toward DP Certification (4 schools are in Asia). </li></ul><ul><li>A qualified DP operator needs more than just the two courses he also needs ‘desk’ time. </li></ul><ul><li>In addition to ‘core’ Competence it takes a minimum of +7 months to train a DP Operator to drive the desk for diving. </li></ul><ul><li>There is no Maintenance Certification other than ‘courses’ (non exam) </li></ul>
    23. 23. DP Crew – what we see <ul><li>DP Operators with only Induction training </li></ul><ul><li>DP Operators with above and Simulator training – but no ‘desk’ time. </li></ul><ul><li>DP Operators fully qualified ‘limited’ but doing ‘unlimited’ work. </li></ul><ul><li>DP Operators fully qualified ‘unlimited’ with no experience of unlimited work. </li></ul><ul><li>NB: simply put it takes 2 months ‘DP2’ desk time to convert from a limited to an unlimited DP Certificate (see flowchart next slide) </li></ul>
    24. 24. DP Training Flow Chart Guidance; IMCA M117 The training and Experience of Key DP Personnel
    25. 25. … .more DP <ul><li>Check Owner / Operators office for documentation as well as the vessel – Management is important. </li></ul><ul><li>IMCA D010 Rev 2 “Diving Operations from Vessel Operating in Dynamically Positioned Mode” </li></ul><ul><li>FMEA – vessel needs if Classed – check it out, check the operators know it. </li></ul><ul><li>IMCA M139 “Standard Report for DP Vessels’ Annual Trials”. </li></ul><ul><li>How many Marine Contractors (Owners of VoO’s) are members of IMCA ?…..I wont ask for a show of hands ! </li></ul>
    26. 26. Acoustic Positioning <ul><li>Hipap 500. Does it work in Shallow water ? </li></ul>
    27. 27. Accommodation and Messing Facilities <ul><li>More important than you may initially think </li></ul><ul><li>Has huge impact on morale and thus productivity. </li></ul><ul><li>Guidance; </li></ul><ul><ul><li>Define ‘quantity’ and verify ‘suitability’ </li></ul></ul><ul><ul><li>Max 4 men per cabin – each cabin to have own ablutions </li></ul></ul><ul><ul><li>Senior Staff (Dive Super) to have single cabin with desk </li></ul></ul><ul><ul><li>Client to have single cabin (makes everybody's life easier! ). </li></ul></ul><ul><ul><li>Portacabin type Accom to be clear of working deck and clear of noise. </li></ul></ul><ul><ul><li>All Accommodation to be ‘air conned’ (or heated as required – look at those of you who have been in Sak this season) </li></ul></ul>
    28. 28. Accommodation and Messing Facilities <ul><li>The guidance is there but is difficult to match ! </li></ul><ul><ul><li>Max 4 men per cabin – each cabin to have own ablutions </li></ul></ul>
    29. 29. Accommodation and Messing Facilities <ul><li>Pay and you will get. </li></ul><ul><li>Senior Staff (Dive Super) to have single cabin with desk. </li></ul>
    30. 30. Accommodation and Messing Facilities <ul><ul><li>Portacabin type Accom to be clear of working deck and clear of noise. </li></ul></ul>
    31. 31. Accommodation and Messing Facilities <ul><li>Galley – Size, Standard important. Can it cope with the number of people ? </li></ul>
    32. 32. Accommodation and Messing Facilities <ul><ul><li>Messroom. Enough to seat one shift at a time, 3 meals per shift (equates to 4 vessel meal times per day). </li></ul></ul>
    33. 33. Accommodation and Messing Facilities <ul><li>Hospital – necessary, especially when Diving </li></ul>
    34. 34. Communications <ul><li>Reliable PABX on vessel </li></ul><ul><li>Ship to shore Communications to be defined as part of contract negotiations. </li></ul><ul><li>Satellite. Want do you want ? V-Sat, C, B, M, Mini M, Fax, email ? Networked ? </li></ul><ul><li>Communications between ‘Work’ and Bridge – redundant Communications if diving. </li></ul><ul><li>CCTV where possible. </li></ul><ul><li>Dive Alarms (Red / Green / Yellow) </li></ul>
    35. 35. Dive Alarms (Red / Green / Yellow) <ul><li>Will have to be ‘made’ on most VoO’s </li></ul>
    36. 36. Power Supplies <ul><li>If using vessel Power need to ensure ‘reliability’ and ‘cleanliness’ of Power. </li></ul><ul><li>If Diving need backup. </li></ul><ul><li>Convention uses deck generators. </li></ul>
    37. 37. Other Vessel services – ‘deliverables’. <ul><li>Divers need and may not expect to have to bring; </li></ul><ul><ul><li>Compressed Air (to run tools / airlift) </li></ul></ul><ul><ul><li>Potable water (water makers or supply) </li></ul></ul><ul><ul><li>Cooling / Sea water </li></ul></ul><ul><ul><li>Sewage Holding Tank Facilities </li></ul></ul><ul><ul><li>Entertainment </li></ul></ul>
    38. 38. Hyperbaric Evacuation Systems <ul><li>HES to be provided by Diving Contractor </li></ul><ul><li>Launch independently of VoO power </li></ul><ul><li>Interfaces with vessel to be addressed </li></ul><ul><li>Again, no manual, all HES’s differ </li></ul><ul><li>Emergency Procedures to be workable (dummy run) – No Compromise </li></ul>
    39. 39. Insurance…a cautionary note <ul><li>Most Marine Insurance Insurance policies exclude subsea operations </li></ul><ul><li>This includes Diving, ROV, Cable and most other subsea activities </li></ul><ul><li>Ensure your Marine Contractor knows the job in hand </li></ul><ul><li>Make sure YOU as the client / subsea contractor have requested coverage (P and I, third party liability and Hull) to cover the operation. </li></ul><ul><li>If you get it wrong it could put you out of business </li></ul>
    40. 40. Conclusion <ul><li>Look beyond the Price </li></ul><ul><li>Just because it has DP2 on the label does not mean it will operate to that standard. </li></ul><ul><li>IMCA Guidance notes are relevant (there are 12 relevant to VoO operations), easily accessible (and cheap !) and compliance ensures all parties do the right thing </li></ul><ul><li>4 Point mooring is covered in the Guidance notes. I have not covered here. </li></ul><ul><li>Diving Contractors need to be reassured that the Marine side of the business is not compromising the Safety of their divers </li></ul>
    41. 41. Thank you