STENA FORTH
Stena Forth is a 6th Generation Harsh Environment dual-activity dynamically positioned (DP3) drillship, capable of drilling in water depths up to 10,000ft. Stena Forth features several Stena Drilling upgrades including a split dual fluid system, a well centre transfer system for development drilling, and enhanced bed space. An MPD system has been installed meaning that all our drillships have MPD capabilities.
Stena Forth: the third of the DrillMAX Series vessels
GENERAL INFORMATION
| Rig Type | DYNAMICALLY POSITIONED, HARSH ENVIRONMENT, DP3 ULTRA DEEP WATER DRILLSHIP |
| Design | Mono-hull Drillship |
| Construction Yard | Samsung Heavy Industries |
| Year Delivered | 2009 |
| Classification |
DNV: + 1A1 SHIP-SHAPED DRILLING UNIT(N) BIS CRANE-OFFSHORE DRILL(N) DYNPOS(AUTRO) E0 F(A, M) HELDK(S, H) RECYCLABLE UKVS |
| Flag | UK |
| Station Keeping | DP Class 3, Kongsberg K-POS 32 |
| Max Water Depth | 10,000 ft |
| Max Drilling Depth | 35,000 ft |
| Helideck | Designed for Sikorsky S92 & EH-101 |
| Accommodation | 220 PERSONS |
DIMENSIONS / LOADING
| Length | 228M |
| Breadth | 42M |
| Moonpool | 25.6m x 12.48m |
| Operating Draft | 12M |
| Transit Draft | 8.5M |
| VDL (Operating) | 19,500 Mt @ 12m |
DRILLING EQUIPMENT
| Mast/Derrick | NOV Dual Hoisting and Drilling Tower |
| Hoist/Drawworks |
MAIN WELL: 907 MT AUX WELL: 544 MT |
| Motion Compensator |
MAIN WELL: 1,040,000 LBS/472 MT ACTIVE & PASSIVE AUX WELL: 840,000 LBS/381 MT ACTIVE & PASSIVE |
| Top Drive |
MAIN WELL: NOV HPS 1000 AUX WELL: NOV HPS 750 |
| Pipe Handling | NOV Dual Hydra Racker 3 1/2” to 13 5/8” |
| Offline Stand Build | 1 x Off Line Stand Build + Torque Master |
| Mud Pumps | 4 x National FC2200 – 7,500 PSI |
| Shale Shakers | 5 x NOV Multisizer |
WELL CONTROL EQUIPMENT
| BOP | 2 x 18 3/4” x 15,000 PSI CAMERON TL (6 RAM) |
| Annulars | 1 x Hydril GX Annular 10k + 1 x Cameron HC Connector (10K) |
| Wellhead Connector | 1 x 18 3/4” GE Vetco H4-SHD |
| Control System | Cameron MUX (BOP Fluid recovery system) |
| Riser | 7,500 FT CAMERON LOADKING 3.5 (80 FT JOINTS) |
| Riser Tensioners | 6 x N-Line tensioner system 2,500 Kips |
| Choke & Kill Manifold | Cameron 3 1/16” – 15,000 PSI |
| Diverter | GE VETCO – CSO 500 – 60 1/2” – 500 PSI |
CAPACITIES
| Liquid Mud |
Active 1,004 M³, 6,315 bbl Reserve 2,345 M³, 14,750 bbl Waste 502 M7, 3,157 bbl |
| Drill Water | 4,464 M³, 28,078 bbl |
| Potable Water | 2,052 M³, 12,907 bbl |
| Fuel Oil | 10,805 M³, 67,961 bbl |
| Bulk Cmt | 420 M³, 2,642 bbl |
| Base Oil | 490 M³, 3,082 bbl |
| Brine | 490 M³, 3,082 bbl |
| Sack Material | 7,500 sacks |
| BULK BARITE/BENTONITE | 420 M³, 2,642 bbl |
MACHINERY / HOISTING / STATION KEEPING EQUIPMENT
| Main Power |
6 X WARTSILA 16V32 GENERATOR SET RATED OUTPUT: 8750 KVA |
| Emergency Power | Integrated in main power |
| DP System | DP 3 (Kongsberg) :2 x HiPaP, 3x DGPS, HAIN, 2 x LTW |
| Thrusters | 6 x Rolls Royce UUC-455, 5.5 MW |
| Mooring system | 2 x 12.675 MT Anchors |
| Deck Cranes |
3 x NOV KNUCKLE BOOM CRANE EACH RATED FOR 85 MT 1 X NOV PIPE HANDLING RATED FOR 7 MT |
| Riser Crane | NOV Gantry Crane 2 x 20 MT (w/o yoke) |
| BOP Handling |
350 MT MOONPOOL SKID 2 X 175 MT BOP OVERHEAD CRANE |
Fleet Availability
Contracted Commitments
Option Commitments
Available / Hot Stacked
Preparing for Upcoming Contract
