GENERAL
Name: Bredford Dolphin
Flag: Singapore
Manager: Dolphin AS
Year Built: 1976
Builder: Aker Engineering,Yard No. 706
Design: Aker H-3, MODU
Classification: Det Norske Veritas, DnV 1A1

MAIN DIMENSIONS
Length: 108.20 m
Breadth: 67.36 m
Height or Depth: 36,58 m (Main deck elevation)

OPERATING PARAMETERS
Water Depth: 450 m
Maximum Drilling Depth: 7500 m
Transit Speed: 1-2 Knots (two 1270 kW el. motors)
Survival Conditions: Wave height(max): 30 m. 100 year return period (Hmax): 31 m. Wave period(zero):11-15 sec.
Drilling Conditions: Max operating draught 21.34m.  

CAPACITIES
Variable Deck Load: Transit: 3,000tonnes. Operating: 4,700 tonnes. Survival: 4,000 tonnes  
Liquid Mud: Pit capacity 5 tanks tot.: 1565 bbls 
Bulk Mud/Cement: Barite/Bentonite 2 tanks each 62 m3. Cement 2 tanks each 62 m3

DRILLING EQUIPMENT
Derrick: Continental Emsco mod. 22BDA 
Drawworks: Ideco (National Oilwell Varco)  
Rotary: Oilwell Type A49 ½”
Top Drive: Varco BJ TDS-4S
Riser Tensioners: Eight Rucker tensioner
Motion Compensators: National Oilwell Varco CMC-600-25 
Mud Pumps: Gardner Denver Mod.PZLD Type PZ11 600 HP

MACHINERY
Main Power: Bergen, KVGB-12, 1618kW@900rpm 
Emergency Power: Caterpillar, 3512B DITA MARINE . 1424kW@1800rpm
Propulsion:  two 1270 kW el.motors

SUBSEA SYSTEMS
BOP: NL Shaffer 18 ¾”, 10 000PSI
Control System: Koorney mod. RHCS 14-21-7 DF type
Diverter: Regan Diverter mod. KFDS
Choke and Kill: 2 auto choke, 2 manual choke & 28 MCEvoy model E-2 high press. Gate valves

MOORING
Winches: Norwinch model 2A 2-76
Wire/Chain:  K-4 (76mm)
Anchors: Eight 12 tonnes HHP Stevpris MK 5 anchors

CRANAGE
Two Liebherr BOS 4200 50 D Litronic Diesel
Hyd. Offshore deck cranes

ACCOMMODATION   
4 deck accommodation for 97 persons