GENERAL DESCRIPTION

THE STENA FORTH IS A HARSH ENVIRONMENT DYNAMICALLY POSITIONED DP CLASS 3 DRILLSHIP.

Capable of drilling in water depths

up to 10,000’ using 18 ¾” – 15,000psi

Cameron TL BOP and Cameron Load

King Riser.

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LENGTH 228m

BREADTH 42m

MOONPOOL 25.6m x 12.48m

OPERATING DRAFT 12m

TRANSIT DRAFT 8.5m

VDL (OPERATING) 20,000 Mt @ 12m

DIMENSIONS / LOADING2

MAST NOV Dual Hoisting and Drilling Tower

HOIST/DRAWWORKS 907Mt (Main), 544Mt (Aux)

MOTION COMPENSATOR Act/Pas 454Mt (Main) + 363Mt (Aux)

TOP DRIVE NOV HPS 1000 (Main), HPS 750 (Aux)

PIPE HANDLING NOV Dual Hydra -Racker 3 ½” to 13 5/8”

OFFLINE STAND BUILD 1 x Off Line Stand Build + Torque Master

MUD PUMPS 4 x National FC2200 – 7500psi

SHALE SHAKERS 5 x NOV – VSM 300

DRILLING EQUIPMENT3

LIQUID MUD 5,346bbl (active), 15,096 bbl. (storage)

DRILL WATER 4464m3

POTABLE WATER 1882m3

FUEL OIL 10,864m3

BULK CMT 588m3

BASE OIL 499m3

BRINE 498m3

SACK MATERIAL 7,500 sacks

CAPACITIES 5

MAIN POWER 6 x Wartsila 16V32C x 7.68 MW

EMERGENCY POWER Integrated in main power

DP SYSTEM DP 3 (Kongsberg) :2 x HIPAP, 3 x DGPS, HAIN, 2 x LTW

THRUSTERS 6 x RR UUC-455, 5.5MW

MOORING SYSTEM 2 x 12.675Mt Anchors

DECK CRANES 3 x NOV KBC each rated for 85t/34t/17t.

1 X NOV PIPE HANDLING KBC RATED FOR 7.0t/3.5t.

Riser handling gantry for 80ft, 40Mt (44 tons),

RISER CRANE NOV Gantry Crane – 2x20Mt (without yolk)

BOP HANDLING 350Mt Overhead Crane

MACHINERY/HOISTING/STATION KEEPING EQUIPMENT6

BOP 2 x 18 ¾” x 15K Cameron TL (5 Ram)

ANNULARS 1 x Hydrill GX + 1 x Cameron DL (10K)

WELLHEAD CONNECTOR 1 x 18 ¾ GE Vetco H4-SHD

CONTROL SYSTEM Cameron MUX (BOP Fluid recovery sys)

RISER Cameron Load King 3.5 (80’ Joints)

RISER TENSIONERS 6 x N-Line tensioner system 2,500 Kips

CHOKE & KILL MANIFOLD Cameron 3-1/16” – 15K

DIVERTER GE Vetco – KFDS–CSO 500 – 60 ½”

WELL CONTROL EQUIPMENT4

RIG TYPE Dynamically Positioned Drillship

DESIGN Monohull Drillship

CONSTRUCTION YARD Samsung Heavy Industries

DELIVERED August 2009

CLASSIFICATION DNV: + 1A1 Ship-shaped Drilling Unit (N) HELDK-SH CRANE E0 F-AM DYNPOS-AUTRO DRILL(N)

FLAG UK

STATION KEEPING DP Class 3, Kongsberg K-POS 32

MAX WATER DEPTH 10000 ft

MAX DRILLING DEPTH 30000 ft

HELIDECK Designed for Sikorsky S92 and EH-101

ACCOMMODATION 180 persons

GENERAL INFORMATION1

STENA-DRILLING.COM

STENA DRILLING LIMITED

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

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

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