Noble Byron Welliver

Noble Byron Welliver


Rig Type Jackup
Rig Design CFEM T-2005-C
Builder CFEM
Year Built/Upgraded 1982
Classification DNV +1A1, Self Elevating Drilling Unit
Flag Liberia
MODU Code 1979
Water Depth 256 ft
Drilling Depth 30,000 ft
Variable Deck Load 4,307 kips
Hook Load 1,433 kips
Setback Capacity 606 kips
Quarters Capacity 100
Draft (Operating/Transit) 15 ft / --
Depth 25 ft Length 245 ft Breadth 283 ft
Leg Length 439 ft Leg Spacing 187 ft / 216 ft
Cantilever Envelope 40 ft x 24 ft


Derrick Joseph Paris
Drawworks National Oilwell 1625 DE
Top Drive Varco TDS-4S Continous Torque; 45,500 ft-lbs
Rotary National C375
Iron Roughneck Varco AR 3200 Breakout Function 2-7/8 in - 9-1/2 in
BOP Cameron Type U; 3 ram; 13-5/8 in x 10k psi w/ Hydril GK 13-5/8 in x 5k psi annular
Control System Koomey
Pipe Handling Systems N/A
Solids Control System (4) VSM 300; 1,200 GPM ea.
Diverter Regan KFDJ-H; 500 psi
Cranes (1) National OS - 215;41.0 MT, (1) NOV OC3500LE; 85.1 MT
Mud Pumps (3) National 12P-160; 1,600 HP
Engines (4) Caterpillar 3516B-HD
Jacking System WECO / CFEM rack and pinion system rated 1.25 ft per min. 18 pinions per leg.


Fuel 2,440 bbls Brine Storage 1,941 bbls
Drill Water 4,573 bbls Base Oil Storage 1,970 bbls
Bulk Storage 11,018 cu ft Liquid Mud (Active+Reserve) 15,682 bbls
Sack Storage 1,324 sacks
For more information about the capabilities of our fleet, please contact:
Noble Corporation plc
Devonshire House
1 Mayfair Place
London W1J8AJ
Noble Drilling Services Inc.
13135 South Dairy Ashford, Suite 800
Sugar Land, TX 77478
Tel: +1281.276.6100
These specifications are intended for informational purposes only. Noble makes no warranties about the accuracy or completeness of any information contained herein.