GENERAL
Name: Borgny Dolphin
Flag: Singapore
Manager: Dolphin Drilling Ltd.
Year Built: 1977
Builder: Rauma Repola, Finland; Upgraded 1985, 1990, 1992, 1993, 1997
Design: Enhanced Aker H3, Self Propelled Semi-Submersible 
Classification: DNV + 1A1, Column Stabilised Drilling Unit, Self-Propelled Unit, Drill, UKVS

MAIN DIMENSIONS
Length: 355 ft (108,2 m)
Breadth: 221 ft (67,4 m)
Depth: 120 ft (36,6 m) from Main Deck

OPERATING PARAMETERS
Water Depth: 1750 ft (533,4 m)
Maximum Drilling Depth: 25,000 ft (7600 m)
Transit Speed: Approx. 4,5 knots

CAPACITIES
Variable Deck Load: 3150 mt
Liquid Mud: 1609 bbls
Bulk Mud/Cement: 496 m3

DRILLING EQUIPMENT
Derrick: Continental Emsco 170 x 40 x 40 ft; 1,250,000 lbs
Drawworks: Continental Emsco C-3 type II
Rotary: Continental Emsco T-4950, 49 ½” opening
Topdrive: Varco BJ TDS-4 rated at 750
Riser Tensioners: 8 x Rucker 80,000 lbs, 50 ft travel
Motion Compensators: Crown Mounted Compensator – Shaffer CMC-25-600DA, Max compensating capacity 600,000 lbs, stroke 25 ft, Max static load 1,250,000 lbs
Mud Pumps: 3 x NOV 14-P-220

MACHINERY
Main Power: 4 x Wartsila 12-V-200; 4 x 2860 KVA generators
Emergency Power: 1 x MTU diesel driving a 844 KVA generator
Propulsion: In-line propulsion, 2 x 1700 bhp

SUBSEA SYSTEMS
BOP: 1 x Cameron18 ¾” 10k  H2S trim
Control System: Cameron Payne Hydraulic system 
Diverter: Regan KFDS - 3
Choke and Kill: Cameron 3” 10k

MOORING
Winches: 4 x Brattvaag single hydraulic windlass units + 4 x Norwinch 2A2-76 double hydraulic windlass units
Wire/Chain: 12 x 4500 ft (1370 m) x 3” diameter stud link chain
Anchors: 6 x 10 mt Delta Flipper HHP anchors + 6 x 10 mt Vryhof Stevpris anchors

CRANAGE
2 x Aker electro-hydraulic constant tension Deck cranes with 140 ft boom, 50 mt maximum capacity

ACCOMMODATION
104 berths

 
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