New Caledonia project(Pipe laying)

Map of New Caledonia


Mob in Singapore


Mob in Singapore


Bad weather, Transit to New Caledonia


Bad Wx


Bad Wx


Arr Noumea


Noumea


Starting Point,Location


Pipe laying Diagram


Floatel


Floatel


Survey screen


Pick up and hold the pipe for connecting


Supporting crafts


Supporting craft


Length 500 mtrs section, towed by tugs


One section completed


Pick up and hold the line for connecting


ROV trial


Connecting


Sinking the pipeline



Location to Noumea


Residential in Noumea

Gears on AHTS, J hook, Grapnel, Anchor, Shackles,etc

REQUIRED TOWING POWER/ TOWING RESISTANCE CALCULATION (Part 2 )

1) The amount of towing force required is not related to achieving a given transit speed but is defined as the amount of towing force needed to hold the towed unit against a given set of environmental conditions.

2) You may get the data showing the amount of towing force required to achieve a given speed in still water conditions and this may be use in calculating transit times but the ability to hold the towed unit against a given set of wind,wave and current forces from right ahead is the more useful data, as far as the tug master,tow master and those involved in planning and carrying out the tow are concerned.

Standard limiting conditions

Wind speed 20 m/s(40 knts) from ahead
Waves height 5 mtrs
Current 0.5 m/s (1 knt) from ahead