Our Company The Fleet News & Events Investor Relations Careers Responsibility
Fleet Overview Our Rigs Rig Videos Marketing Contacts Discoverer Clear Leader Discoverer Enterprise Sedco Express Surplus Equipment for Sale
List by Name List by Rig Type List by Location List by Water Depth Newbuilds

The Fleet  Our Rigs  List by Location  Development Driller III

Fleet Specifications

Development Driller III
Semisubmersible Drilling Unit

General Description 

Design KFELS MSC Gusto DSS51
Delivered 2009
Quarters capacity 200 persons
Operating water depth 7,500 ft. (2,286 m) upgradeable to 10,000 ft. (3,047 m)
Drilling depth 35,000 ft. upgradeable to 37,500 ft. (11,430 m)
Maximum drilling variable deck load 29,762 kips
Maximum survival variable deck load 29,762 kips
Maximum transit variable deck load 14,837 kops
Heliport Designed for EH-101 helicopter
Classification ABS A1 Column Stabilized Drilling Unit DPS-2, ACC, AMS

Vessel Dimensions/Displacement 

Overall length 383.9 ft.
Overall width 293.0 ft.
Main deck length 257.6 ft.
Main deck width 255.9 ft.
Depth to main deck
Column dimension  4 ea. 55.8 ft. x 57.4 ft.
Draft - drilling 67.3 ft.
Draft - survival 52.5 ft.
Draft - transit (Nominal) 31.8 ft.
Displacement at drilling draft 52,869 lt
Displacement at survival draft 47,532 lt
Displacement at transit draft 38,344 lt

Station Keeping 

Mooring System 4 ea. Brohl 288 double-drum electric anchor winches;
8 ea. Vryhoff Stevpris NG1500 (14.75 lt) anchors
Traction winches
Windlasses
Storage reels
Chain lockers 8 each
(max. capacity)
Chain on board 8 ea. 1,900 ft stud link chains, 3-1/2 in. diameter, breaking strength 1,796,000 lbs
DP Thrusters Kongsberg SDP 22 (ABS Class DPS-2+) rated
for water depths ranging between 1,640 ft. and
10,000 ft.
Position Reference DGPS / HPR / HiPAP 350

Cranes 

Deck crane (port) Liebher MTC 6000-150 Litronic with 167.3 ft. boom, rated for 150 st at 64 ft. radius
Deck crane (stbd) Liebher MTC 6000-150 Litronic with 167.3 ft. boom, rated for 150 st at 64 ft. radius
Knuckle boom 1 x NOV 2806 with 115 ft boom rated for 16.5 st at 82 ft.
Riser gantry crane

Rig Power Systems 

Engines 8 x Caterpillar 3616 diesel engines rated 6,760 hp each
AC Generators 8 x Leroy Somner LSA 58 LT AC generators rated 4,840 KW each

Drilling Equipment 

Derrick 230 ft. high; 52 ft. x 57 ft. base; NOV with a static
hook load capacity of: 2,000,000 lbs. Main Load
Path; 1,000,000 lbs. Auxiliary Load Path
Clear working height 200 ft.
Drill floor dimensions
Tubular setback capacity 2,000,000 lbs
Rotary supporting capacity 5,400,000 (hookload + setback + rotary)
Piperacking systems 2 ea. NOV Bridge Racker System
Mud pumps 4 ea. NOV 14-P-220, 2,200 hp triplex pumps
each driven by two GEB-22A2 AC traction
motors, rated to 7,500 psi

Hoisting Equipment 

Drawworks (Main) NOV AHD-1000, 6,900 hp input,
2,000,000 lbs. hookload with 14 lines; 2,000,000
lbs. Active Heave Compensating capacity
Drawworks (Auxiliary) NOV AHD-500, 4,600 hp input,
1,000,000 lbs. hookload with 10 lines; 1,000,000
lbs. Active Heave Compensating capacity
Traveling block (Main) NOV Split Drawworks rated 1,000 st
Traveling block (Auxiliary) NOV Conventional Drawworks rated 500 st
Top drive (Main) (in line) NOV HPS 1000 AC drive, hoisting
capacity: 2,000,000 lbs.; continuous drilling
torque rating: 78,450 ft-lbs
Top drive (Auxiliary) (in line) NOV HPS 500 AC Drive, hoisting
capacity: 1,000,000 lbs.; continuous drilling
torque rating: 58,500 ft-lbs

Storage Capacities

Liquid storage (upper hull) 11,800 bbls (mud/brine)
Liquid storage (columns)
Brine 4,717 bbls.
Base oil 4,717 bbls.
Potable water 5,032 bbls
Drill water 12,579 bbls
Fuel 25,158 bbls
Sack mud storage (on pallets) 24,000 cu. ft.
-Barite/Bentonite 24,000 cu.ft.
-Surge tanks 2 ea. 105 cu.ft. capacity each
-Cement 24, 000 cu. ft.
-Surge tank Third party equipment

Mud Conditioning Equipment

Gumbo / Scalper conveyor N/A
Balanced Elliptical Motion shakers 7 ea. MI Swcar BEM-650 Shale Sakers
Mud cleaners 2 x MI Swaco BEM-650 Mud Cleaner (mounted atop 2 of the 7 shakers)
Degassers 2 ea MI Swaco CD-1400

Well Control Equipment

BOP stack Two Hydril Type GX 10,000 psi annular
preventers, two Hydril Compact 15,000 psi double rams
and two Hydril 15,000 psi single ram
Two remote control panels Yes
Two stack mounted pods Yes
Mux cable reels 11,000 ft. (±3,353 m)
Marine riser 21 in. Kvaerner Clip 75 ft long
Quantity 7,500 ft total
Slip joints Vetco 19.75in 60 ft maximum stroke
Suspension ring Fluid Bearing Vetco SLS
BOP Transporter NOV Hydraulic Rack and Pinion rated 440 st
Auxiliary Cart Riser Hang-off Carf rated 750 st
LMRP / SS Tree gantry crane

NOV Hydraulic Rack and Pinion rated 220 st (110 st on each main block) with 2 x 27.5 st auxiliary winches

Riser Tensioners

12 ea. NOV 125 st each with 50 ft line travel
Diverter Vetco CSO, 20in., 500 psi