Blackford Dolphin

Operating Parameters

Water Depth: 7000 ft Maximum (Outfitted for 6000 ft)
Maximum Drilling Depth: 30000 ft (9144 m)
Transit Speed: 4,5 knots (towed)
Survival Conditions: Hs 16,8 m (Hmax 32 m), Max wind 100 knots, Current velocity 2,0 knots
Drilling Conditions: Hs 8,4 m, Max wind 100 knots
Length: 108,3 m (355,3 ft)
Breadth: 84.1 m (276 ft)
Height: 36,57 m (120 ft), Main Deck elevation above baselinet
Variable Deck Load: 4500 mt (9,920,802 lbs)
Liquid Mud: 5000 bbls (596 m3)
Bulk Mud/Cement: 8 x 2170 ft3

Drilling Equipment

Derrick: 1500 kips (750 st) Static Hookload Capacity, 40 ft x 35 ft x 160 ft
Drawworks: NOV SSGD – 4600 with 4 AC Motors
Rotary: NOV D-605, 60 ½” opening
Topdrive: NOV (Hydralift) HPS 750-E-AC-KT with 750 st Load Capacity
Riser Tensioners: 6 x NOV DWRT-200-50 Dual Wireline Tensioners, Max capacity 2,400,000 lbs
Motion Compensators: Crown Mounted Compensator, 1500 kips static / 800 kips (363 mt) compensating load
Mud Pumps: 3 x NOV 14-P220 with 2200 hp each

Specifications

NameBlackford Dolphin
FlagSingapore
OwnerBlackford Dolphin Pte. Ltd
ManagerDolphin Drilling Ltd.
Year Built1974. Major Deepwater Upgrade 2006/2007
BuilderAker Nylands Verksted AS, Oslo, Norway (1974), Keppel Verolme (2006/2007)
DesignAker H3
ClassificationDNV 1A1, R, Column Stabilised Drilling Unit, HELDK-SH, CRANE and Drill
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