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STENA-DRILLING.COM

STENA DRILLING LIMITED

Ullevi House | Greenbank Crescent | East Tullos Aberdeen | Scotland | AB12 3BG

Tel. +44 1224 401180 | Fax +44 1224 897089

GENERAL DESCRIPTION THE STENA CLYDE IS A SEMI-SUBMERSIBLE, TWIN PONTOON, COLUMN STABILISED UNIT, AKER H3 DESIGN.The vessel has been modified with an additional six stability columns to provide adequate operating deck load for operations in 1,500ft water depths. A Cameron TL 18¾” 15,000 WP H2S Service BOP is fitted. The Stena Clyde has an SBOP capability for a water depth of 5,000 ft.

RIG TYPE Semi Submersible

DESIGN AKER H-3

CONSTRUCTION YARD Rauma Rupola

YEAR DELIVERED 1976 (Modified 1985 & 1997)

CLASSIFICATION +1A1 Column Stabilised Unit UKVS

FLAG UK

STATION KEEPING 4630ft chain ORQ R3 3inch. Anchors: 3 x 15T Viking 5 x 7T Stevpris

MAX WATER DEPTH 1,500ft (5,000‘ SBOP / pre-laid moorings)

MAX DRILLING DEPTH 25,000ft

HELIDECK Arranged for Eurocopter 225 – 11Ts

ACCOMMODATION 105 persons

GENERAL INFORMATION1

LENGTH (Main Deck) 68.55m

BREADTH (Main Deck) 56.38m

MOONPOOL 15.9m x 6m

OPERATING DRAFT 21.34m

TRANSIT DRAFT 9.4m

VDL (Operating) 3,150 tonnes

DIMENSIONS / LOADING2

MAST/DERRICK Pyramid Dynamic Beam leg (40ft x 40ft base) 545mt

HOIST/DRAWWORKS 3000 HP National 1625 DE

MOTION COMPENSATOR

Hydralift CMC 600,000 lbs 25ft stroke.

TOP DRIVE Aker (MH) DDM-650-DC

OFFLINE STAND BUILD N/A

MUD PUMPS 3 x National 12-P-160, 1600 HP

SHALE SHAKERS 4 x VSM300

DRILLING EQUIPMENT3

BOP Cameron TL 18¾” 15,000 WP

LMRP Cameron 18¾” 10,000k

WELLHEAD CONNECTOR

18¾” Cameron HCH4, 15K.

CONTROL SYSTEM Shaffer/Cameron

RISER 26 x 65 ft Joints Cameron ‘RF’

RISER TENSIONERS 10 x NL Shaffer 80K

CHOKE & KILL MANIFOLD

Cameron 3 1/16 x 15k, 4 1/16 x 10k

DIVERTER Regan KFDS-3, nominal 24”

WELL CONTROL EQUIPMENT4

LIQUID MUD 2870 bbl

DRILL WATER 1170 tonnes

POTABLE WATER 1160 tonnes

FUEL OIL 1230m3

BULK MUD 402 tonnes

BULK CEMENT 320 tonnes

BRINE N/A

SACK MATERIAL 2000 Sacks

CAPACITIES 5

MAIN POWER 5 x Caterpillar 3516 CHD Generator Rated Output: 2550kVA

EMERGENCY POWER 1 x Caterpillar 3508B, 850kW Generator Rated Output: 1062kVA

DP SYSTEM N/A

THRUSTERS N/A

MOORING SYSTEM 4 Double Pusnes type 75-EA

DECK CRANES 2 x National OS435 diesel hydraulic

RISER CRANE N/A

BOP HANDLING 1 Hydralift BOP transporter 230 tonnes SWL

MACHINERY/HOISTING/STATION KEEPING EQUIPMENT6