578/ Anchor Handling and Towing Operations Procedure / 992
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RD-2
6
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Table of Contents
1 P ur p ose................................................................................................................................................... 4 2 S co p e ...................................................................................................................................................... 4 3 Res p onsibility , aut h ority and accountability ...................................................................................... 5 4 Descri p tion ............................................................................................................................................. 6 4.1 AH & T O perat i ons descr i pt i on .............................................................................................................. 6 4.1.1 S tab ili ty ............................................................................................................................................. 6 4.1.2 AH T Procedures and B r i ef i ng .......................................................................................................... 7 4.1. 3 R eport i ng .......................................................................................................................................... 8 4.1.4 E q u i pment chec k s ............................................................................................................................ 8 4.1. 5 S afety ............................................................................................................................................... 9 4.1. 6 Ri s k Assessment .............................................................................................................................. 9 4.1.7 Commun i cat i ons ............................................................................................................................. 10 4.1.8 W atches ......................................................................................................................................... 10 4.1.9 AH T Personne l, Mann i ng and T ra i n i ng .......................................................................................... 11 4.1.10 S top W or k Author i ty ....................................................................................................................... 12 4.1.11 Emergency Preparedness .............................................................................................................. 12 4.1.11.1 F a il ure of the T ow w i re .............................................................................................................. 12 4.1.11.2 E l ectr i ca l Power or Mach i nery Propu l s i on fa il ure wh il st tow i ng ................................................. 1 3 4.1.12 W eather Li m i tat i ons ........................................................................................................................ 14 4.1.1 3 B o ll ard Pu ll ..................................................................................................................................... 14 4.1.14 Emergency re l ease dev i ces , emergency S top dev i ces ................................................................. 1 5 4.1.14.1 Wi nch Emergency R e l ease ....................................................................................................... 1 5 4.1.14.2 Wi nch Emergency S top ............................................................................................................. 1 5 4.1.14. 3 Mechan i ca l Wi re S topper Emergency R e l ease ......................................................................... 1 6 4.1.1 5 R ecords k eep i ng ............................................................................................................................ 1 6 4.2 Anchor Hand li ng O perat i on ................................................................................................................. 17 4.2.1 AH & T preparat i on ......................................................................................................................... 18 4.2.1.1 B as i c re q u i rement .......................................................................................................................... 18 4.2.1.2 S cope of wor k................................................................................................................................. 18 4.2.1. 3 D ur i ng operat i on ............................................................................................................................. 19 4.2.1.4 Anchors .......................................................................................................................................... 20 4.2.1. 5 T he Ri g Move ................................................................................................................................. 20 4.2.1. 6 R ecovery 1 st method ...................................................................................................................... 22 4.2.1.7 R ecovery 2 nd method ...................................................................................................................... 28 4.2.1.8 D ep l oyment 1 st method .................................................................................................................. 28 4.2.1.9 D ep l oyment 2 nd method ................................................................................................................. 3 1 4.2.1.10 D ec ki ng anchor .......................................................................................................................... 3 2 4.2.1.11 R etr i ev i ng anchor by p i c k up buoy . S ha ll ow water .................................................................... 3 4 4.2.1.12 T he M i d -li ne B uoy sha ll ow water ............................................................................................... 3 7 4.2.1.1 3 T he R ope I nsert ......................................................................................................................... 3 8 4.2.1.14 T he Wi re I nsert .......................................................................................................................... 3 8 4.2.1.1 5 Use of grapne l............................................................................................................................ 3 9 4.2.1.1 6 Use of J - Hoo ki ng ....................................................................................................................... 3 9 4.2.1.17 D eep W ater O perat i ons (T andem/Jo i nt T ow i ng O perat i ons ) .................................................... 40 4.2.1.18 S ep l a anchor .............................................................................................................................. 41 4.2.1.19 S poo li ng of w i res ....................................................................................................................... 44 4.2.1.20 P i pe L ay B arges ........................................................................................................................ 4 5 4.2.1.21 Jac k up r i g .................................................................................................................................. 4 5 4. 3 T ow i ng ................................................................................................................................................. 4 6 4. 3 .1 T ow i ng re q u i rements ...................................................................................................................... 4 6 4. 3 .1.1 G enera l tow i ng ru l es ...................................................................................................................... 47 4. 3 .2 T ow i ng operat i on ............................................................................................................................ 47 4. 3 . 3 T ow i ng comp l et i on ......................................................................................................................... 5 0 4. 3 .4 T ow i ng spr i ng/stretcher .................................................................................................................. 5 1Vers
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Procedure prepared by
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Head
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Approved
by
: BOS
Head
of
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Va
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dated by
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