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 Technology >> The Pacific Class 400
 
Pacific Class 400 Jack-Up Rig
Hull length (m) 72.1
Hull breath (m) 68.4
Hull depth (m) 8.5
Leg length including spud can (m) 162.329
Leg centres Fwd/Aft (m) 44.3
Leg centre PS/SB (m) 47.3
Spud can dimension across flat (m) 16.9
Accommodation (man) 150
Drill centre maximum aft (m) 22.86
Drilling depth (ft) 30,000
Helideck comply to CAP 437  

Design Parameters Normal Drilling Conditions Storm Conditions
Water Depth (m) 121.9 121.9
Max wave height (m) 13.7 13.7
Wave period (sec) 14.5 15.0
Surface current (m/sec) 0.64 0.64
Wind speed (m/sec) 36.0 51.4
Air gap (m) 15.2 15.2
Leg penetration (m) 3.05 3.05
Hook load (mt) 680 -
Max combined variable load (mt) 3,401 2,948


Tank Capacity Barrel Bulk Capacity  
Pre load 69,800 Bulk cement 165 m³
Fuel oil 4,085 Bulk mud 165 m³
Potable water 3,520 Sack storage 5,000
Drill water 21,760 Mud surge tank 2 x 2 m³
Active & Reserve mud pit 4,150    
Base oil 1,255    
Brine 1,255    


BMC Jacking System
Number of pinions 72
Number of Jacking motors 36
Nominal jacking load 275 metric-tons
Preload jacking load 370 metric-tons
Jacking speed 0.36 m/sec
Load monitoring
Rack Phase Differential monitoring
Local and remote control

 



 
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