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North Sea Rig: Borgland Dolphin

Steve

Haywards Heath, United Kingdom

  • Artist
    Notes
  • Artwork Comments 4

Artist's Description

Photographed off the port bow on 31st July 2011

Nikon D7000, Sigma 150-500 at 500mm, 1/320s, f/6.3, iso 100, raw

GENERAL
Name: Borgland Dolphin
Flag: Singapore
Manager: Dolphin A/S
Year Built: 1977 Builder Harland & Wolff (Conversion), Belfast,
Ireland: Major upgrade 1998/1999
Design: Enhanced Aker H-3
Classification: Acknowledgement of Compliance, DnV + 1A1, Column stabilised drilling unit, CRANE, HELDK-SH, DRILL N

MAIN DIMENSIONS
Length: 355ft (108.2m)
Breadth: 221ft (67.36m)
Height: (36,58 m)

OPERATING PARAMETERS
Water Depth: 1476 ft (450m)
Maximum Drilling Depth: 20000 ft (8500 meter)
Transit Speed: 5 Knot
Survival Conditions: 60ft draft (18.29m)
Drilling Conditions: 1476ft – 230ft (450m – 70m)

CAPACITIES
Variable Deck Load: 3200 mt
Liquid Mud: 475+649 m3
Bulk Mud/Cement: 534 m3

DRILLING EQUIPMENT
Derrick: Maritime Hydraulics Ram Rig, 581 tons (590mt)
Drawworks: Ram Rig Hydraulic cylinders
Rotary: Whirt RTSS 49 ½” H
Topdrive: DDM (Derric mounted drilling machine) Maritime Hydraulics
Riser Tensioners: 8 x Maritime Hydraulics dual tension, max tension 100.000 lbs, 15,2 m travel
Motion Compensators: Maritime Hydraulics Ram Rig Concept
Mud Pumps: 3 x National 12-P-160

MACHINERY
Main Power: Caterpillar
Power Distribution: 4 × 3600kW
Emergency Power: 1 × 1800kW
Propulsion: 2 x Nebb 1250kW

SUBSEA SYSTEMS
BOP Shaffer: 18¾ 15k
Control System: Hydril
Diverter: Hydril type FS21-500
Choke and Kill: 15k

MOORING
Winches: 4 x Norwinch double winches 7350 Kn break load
Wire/Chain: 8 × 5741 ft, 76 med mer special chain, 7350 Kn
Anchors: 8 × 15 Ton, Stevpris MK5

CRANAGE
1 × 39.4 ton (40mt); 1 × 73.8 ton (75mt)

ACCOMMODATION
100 berths

Artwork Comments

  • Tracy66
  • Steve
  • mark6229
  • Steve
desktop tablet-landscape content-width tablet-portrait workstream-4-across phone-landscape phone-portrait
desktop tablet-landscape content-width tablet-portrait workstream-4-across phone-landscape phone-portrait

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