Rig Data: Byford Dolphin

Rig Name: Byford Dolphin
Rig Manager: Dolphin Drilling
Rig Owner: Byford Dolphin P/R
Competitive Rig: Yes
Rig Type: Semisub
Semisub Generation: 2
Rig Design: Aker H-3
Rated Water Depth: 1,500 ft
Drilling Depth: 20,000 ft
rig photo
Rig Contract & Operating Status
Operating Status: Drilling
Operator: BP
Contract start date, day rate, date available, future contract details, and more available via RigLogix.
Rig Location
Region: Europe - North Sea
Country: UK
Current Water Depth: 282 ft
Location start date, end date, well location, past and future locations, and more available via RigLogix.
Rig Construction Details
Classification: DNV
Rig Design: Aker H-3
Built By: Aker Group  at the Akerk Verdal Oslo Norway shipyard
Delivery Year: 1974
Flag: Singapore
Construction costs, dimensions, capacities, and dozens of other fields of data on each rig are available via RigLogix.
Rig Equipment
Derrick: Continental Emsco 170' x 40' x 40'; Capacity: 1,200,000 lbs
Drawworks: National Oilwell 1625-DE 2,400 HP
Mud Pumps: 2 x National Oilwell 12-P-160 triplex Driven by two 752 traction motors, 1600 HP
Top Drive: Varco TDS-4 650 ton capacity, 1000 HP
Rotary Table: Continental Emsco 49.5 in. diameter Model T-4950 800 hp
Detailed specs on each piece of rig equipment from BOPs to Winches are available via RigLogix. More than 100 searchable data points.

Offshore Rig Utilization Last 12 Months Utilization Graph Legend
Manager: ENSCO
Location: N. America - Mexico
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