STENA EVOLUTION

Stena Drilling have entered into a purchase option for what we hope will become the Stena Evolution. The Drilling Unit is a 7th Generation operation-oriented enhanced Ultra Deep Water DP3 Drillship capable of operating in water depths up to 12,000ft and drilling depths up to 40,000ft. The Drilling Unit’s premium high specification and optimal design utilises riser storage in hull to offer extensive deck space with a 24,000MT VDL. Innovative energy and operational efficiencies have been implemented throughout the design to enhance performance. In addition, this vessel is a prime candidate for upgrading for 20,000 psi well operations.

Closed bus capable 3rd party areas Enhanced hull design Data-driven performance Smart Maintenance Large deck space & VDL Mud system performance 2x Trip tanks Main Well Hookload Capacity – 1400ST (1250ST at the elevators) CMC MMC 2x 7-ram BOP Integrated hull storage Extensive crane coverage Riser 240 POB

Highly capable

Equipped for 12,000ft water depth & 40,000ft drilling depth
Main Well Hookload Capacity – 1400ST (1250ST at the elevators)
Large setback capacity

Operationally efficient

Multi machine control (MMC)
Dual 7 ram BOPs
Smart Maintenance

Energy saving

Hull design optimised for fuel efficiency
Closed bus capability
Energy management system

Digitally advanced

Data driven performance
Advanced analytics
Single source of truth

Optimally designed

Riser stored in the hull
Extensive deck space with high VDL
3rd party equipment integration

Highly capable

Equipped for 12,000ft water depth & 40,000ft drilling depth
Main Well Hookload Capacity – 1400ST (1250ST at the elevators)
Large setback capacity

Operationally efficient

Multi machine control (MMC)
Dual 7 ram BOPs
Smart Maintenance

Energy saving

Hull design optimised for fuel efficiency
Closed bus capability
Energy management system

Optimally designed

Riser stored in the hull
Extensive deck space with high VDL
3rd party equipment integration

Digitally advanced

Data driven performance
Advanced analytics
Single source of truth

Stena Evolution: the first of the EvoMAX Series vessels

GENERAL DESCRIPTION


Hull dimension (L x W x D)	233 m x 42 m x 19 m
Displacement	89,792 mT
Operating Draft	11 m
Transit draft	9.5 m
Maximum Water Depth	12,000 ft
Drilling Depth	40,000 ft
Variable Deck Load	24,000 mT
POB	240
Cabin	40 x 1P cabin, 100 x 2P cabin
Moonpool Size	25.6 m x 12.5 m
Maximum Transit Speed	12 knots

POWER GENERATION SYSTEM


Main Engine	6 x 8,000 kW
Generator	6 x 7,400 kW, PF 0.9, ABB
Generator Monitoring	DGMS, ABB
Drilling VFD Power	3 x 6 MVA = 18 MVA

STATION KEEPING


Dynamic Positioning	DPS-3
Azimuth Thrusters	6 x 5,500 kW, Rolls Royce
Closed Bus Switchboard	Prepared for

CRANES


Deck Cranes	3 x 100mT, 1 x 150mT
BOP Gantry crane	2 x 270 mT
BOP trolley	600 mT
X-mas Tree Trolley	200 mT
X-mas Tree Overhead Crane	150 mT

STORAGE CAPACITIES


Diesel Oil	7,799.9 m3
Fresh Water	1,563.2 m3
Drill Water	3,122.4 m3
Base Oil	1,018.8 m3
Dry Bulk Barite I Bentonite	550 m3
Dry Bulk Cement	414 m3
Transfer capacity (Barite/Cement)	100 MT/hr / 120 MT/hr
Active Mud (incl.slug and chemical)	1,328.8 m3
Reserve Mud (incl. waste)	2,906.7 m3
Completion Fluids	1,016.8 m3
Trip Tank / Stripping Tank	2 x 96.3 bbls / 15 bbls

DRILLING EQUIPMENT


Derrick (Dual)	Main 1,400 ST I Aux 1,000 ST
Setback Capacity	2,000 ST I 1,814 MT
Casing Storage on Deck	2,700 MT
DP/DC/HW Storage on Deck	1,640 MT
Hoisting Capacity MW / AW	1,134 MT / 816 MT
Max Combined Load	2,000 ST / 1,814 MT
CMC Main	500 ST / 454 MT Compensated 1,400 ST / 1,270 MT Static
Active Heave Drawworks Main	1,400 ST
Active Heave Drawworks Aux	1,000 ST
Topdrive (MW & AW)	TDX 1,250 2,680 HP
Hoisting Capacity	1,250 ST
Make up, Break out Torque	120,000 / 150,000ft lbs
Continuous Torque	105,000 ft lbs @ 130 rpm
Rotary Table(MW &AW)	1,375 ST 75.5" & 1,000 ST 605F
Iron Roughneck	2 x NOV ARN 270, 200,000 ft lbs
HydraRacker IV (MW & AW)	15t 2.7m / 12.5t 3.3m / 10t 3.9m / 7t 4.8m
Pipe Catwalk	15 MT
Mousehole	MR3 15 MT 45ft 18"
Access Baskets in Derrick	Vertical Travelling
Palfinger Crane on Drillfloor	2, Man Riding Basket equipped
Palfinger Crane in Moonpool	2, Man Riding Basket equipped
Riser Catwalk	60 MT, Hydraulic Operated
Riser Overhead Crane / Elevation	50 MT / 50 MT
Riser Storage / Riser Outfitted	14,580 ft / 12,120ft
Pipe Catwalk	15 MT
ACS / PIM	Applied
MMC Stand building and tripping	Applied
MMC Riser	Applied
Riser Tensioning Capacity	2,000 ST / 1,814 MT
BOP	2, NOV PCG 15K 7 rams
Choke & Kill Manifold	15,000 PSI, NOV
Diverter	500 PSI 75 1/2", Shaffer
Shale Shaker	7, Ml SWACO
Cement Unit	15,000 PSI, Schlumberger