Invergordon 15.10.2009

Rig Type Semisubmersible
Rig Location UK North Sea
Rig Design Enhanced Aker H-3.2
Year Built 1975
Yard Built Trosvik Framnaes, Sandefjord, Norway
Class ABS AI Column Stabilized Drilling Unit
Registry Marshall Islands
Water Depth - Ft 1,200
Drilling Depth - Ft 20,000
Quarters 110 + 2 bed hospital
Dimensions 355' x 221' x 120'
Helideck 75' x 75', for Westland EH 101 (15 T)
Drilling Draft 70'
Variable Deckload - Operating 2,950 LT
Variable Deckload - Transit 2,262 LT
Number of Columns 8
Max Combined Structure Load 650 kips
Moonpool Dimensions 18' x 65'
Operating Displacement 24,121 LT
Bulk Mud & Cement 17,600 cu ft
Liquid Mud 2,322 bbls
Fuel Oil 11,820 bbls
Drill Water 13,365 bbls
Brine 3,060 bbls
Base Oil 3,060 bbls
Potable Water 3,474 bbls
Sack Storage 2,300 sq ft
Drawworks National 1625 DE w/1-1/2" drill line
Derrick Emsco 40' x 40' x 180', 1.4 million lb. hook load capacity
Top Drive Varco TDS-4S
Pipe Handling System Varco AR3200 Iron Roughneck, Hydraulic Stabbing Arm, ODS pipe deck elevator for casing handling
Rotary National C-495, 49-1/2"
Top of Rotary Table to Bottom of Barge 152 Ft.
Mud Pumps (3) National 12-P-160
Main Engines (4) Bergen BMV KVBG-12
Annular BOP (2) Shaffer 18-3/4" 5K

Ram BOP (2) Hydril MPL (double) 18-3/4" 10K
Diverter Regan KFDS 21"
Riser Vetco 21" MR6-C

Riser Tensioning (6) 80 kip, 480 kip total
Solids Control (4) Thule VSM 300 dual shakers, Derrick flow divider
Cranes (1) Seatrax S7226, (1) Seatrax 8032, w/120' booms
Mooring System (8) 3" x 4,500' ORQ+20 / R4 chains, (8) 10 MT MK5 Stevpris Anchors