North Dragon
GENERAL | |
Name | : North Dragon |
Flag | : Bahamas |
Builder | : Yantai CIMC Raffles Offshore Limited |
Designer | : Global Maritime & CIMC Raffles |
Class | : DNV GL |
Notations | : +1A1 Column Stabilized Drilling Unit (N), DRILL(N), HELDK-SH,CRANE(N),DYNPOS-AUTRO, POSMOOR-ATA, E0, CLEAN, ICE-T, WINTERIZED BASIC |
PRINCIPAL DIMENSIONS | |
LOA Pontoon | : 106,75m |
Beam | : 73,70m |
Elevation of main deck | : 42.0m |
Deck Box | |
Length | : 88,15m |
Width | : 73,10m |
Elevation of box bottom | : 34,00m |
Draft | |
Operation Draft | : 21,0m |
Survival Draft | : 19,0m |
Transit Draft | : 10,1m |
Displacement | |
Displacement | : 32,700-45,700T |
DESIGN ENVIROMENT | |
Survival condition | : Hs=17,3m |
Operation condition | : Hs=8,0m |
Transit condition | : Hs=5,0m |
Sea water temperature | : 0°C to 32° C |
Outside air temperature | : -20°C to 35°C |
Structure design temperature | : -25°C |
Fatigue life | : 20 years |
OPERATION AREA | |
World wide including NCS & UKCS | |
OPERATING PARAMETTERS | |
Water depth | : 500m (can extend to 1200m) |
Drilling Depth | : 8000m |
VDL | : 4100T |
TANK CAPACITY | |
Bulk barite/tank | : 362㎥ |
Bulk Cement tank | : 356㎥ |
Liquid mud (columns) | : 641㎥ |
Mud pit | : 674㎥ |
Brine tank | : 1,105㎥ |
Base oil tank | : 632㎥ |
Drilling water storage tank | : 1,737㎥ |
Potable Water Tank | : 579㎥ |
Fuel oil tank | : 4,681㎥ |
Stop tank | : 298㎥ |
DRILLING PACKAGE NOV | |
Derrick capacity | : 680mT (1,500,000Ibs/750 short ton) |
Base | : 15m x 16m |
Rotary table | : 60-1/2″ |
Top Drive | :1x680mT, 2x746kW, Break out 170 kNm, 7,500 psi |
Draw work Dynamic | : 680mT, 4600 HP |
Catwalk machine | : 1 x main catwalk
: 1 x aux catwalk |
Finger board | : Triple 3 x Range2 (or 2xRange3) – 273 stands of 5 7/8″DP and – 56 stands of 13 3/8″ CSG and – 11 stands of 9 1/2″ DC and – 1 BHA |
Vertical pipe handler | : NOV Hydraracker (column racker) |
BOP handling | : 300T SWL BOP Trolley/Elevator |
Crown block Passive comp.(CHC) Active comp. for CHC |
: 680mT
: 454mT (1,000 kips), 25′ : 25mT, 25′ |
Aux. Roughneck | : Break out torgque 200 kNm |
Main roughneck | : Break out torque 200 kNm |
Knuckle boom Crane | : Rigging: 35T @ 6.5-30m |
Riser tensioner | : 8 x 54.5T |
BOP/WELL CONTROL | |
BOP | : 18¾” 15000psi 5 rams, 1 annular.
(space for second annular) |
Marine riser | : 50`length, total of 500 m |
Slip joint | : 50` stroke length |
MUD PUMPS | |
3 x 2200 HP 9″ x 14″ single acting triplex pumps, 7,500 psi | |
HELIDECK | |
1 x Helideck suitable for Sikorsky S-61N, Super Puma,Sikorsky S92 | |
ACCOMMODATION | |
130 single cabins (According to NORSOK requirements) | |
MAIN POWER SYSTEM | |
Main Generator Set | : 6x 5,535kWe |
Emergency Generator | Two main genarators are outfitted as emergency generator |
THRUSTER | |
Thruster | : 6 x 4,500 kW fully azimuth thruster (86mT thrust each) |
STATION KEEPING | |
Dynamically Positioned | : DP3 (IMO) |
8 Point Mooring system | : 750m, 96mm wire, 385 mT Stall pull on 5’Th layer |
MAIN CRANE | |
Main Deck Crane | : 2 x 80 mT offshorecrane (Whip 17 mT) |