GENERAL

Name: Borgny Dolphin
Flag: Singapore
Manager: Dolphin Drilling Ltd.
Year Built: 1977
Builder: Rauma Repola, Finland; Upgraded 1985, 1990, 1992, 1993, 1997, 2009
Design: Enhanced Aker H3, Self Propelled Semi-Submersible 
Classification: DNV + 1A1, Column Stabilised Drilling Unit.

OPERATING PARAMETERS

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

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