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SUBSEA TREE DESIGN DATA (Includes Wellhead/Downhole)

No. System Design Requirements Comments

1 Functionality

- Open & Shutdown the Production

- Control & Monitor the Flow (Speed,Pressure, Temperature, Sand, etc)

- Provide Interfaces to Flowline- Inject Chemical Fluids into the Well

and/or Flowlines

As minimum functionality.

Number of Subsea Tree 5 Fixed.

Tree Type Vertical (Conventional) Fixed.

Design Life 30 years

Pressure Rating 10,000 Psi+1,000 Psi as maximumSITHP.

Min/Max OperatingTemperatures

-29˚C to 136˚C The materials shall becharpy tested to -46˚C.

Maximum Flowrate- 185 MMSCFD for long term- 250 MMSCFD for less than 1-month

-

Maximum Flow Velocity 50m/sec at 250 MMSCFD -

Injection Point / Well- Tree : 2 x MEG- Wellhead : Not required

Fixed.

Smart Well Function No -

Fiber Optic Requirements No -

Sensors / Well

- Tree : 4 x Pressure andTemperature; 1 x Delta Pressureacross the Choke; 1 x AcousticSand Detector; 1 x Erosion Probe

- Wellhead : 1set of DHPTG; Dual PT(Pressure-Temperature) Sensors

Fixed.

Multiphase Flowmeter No -

Number of SCSSV / Well 1

Production tubingconfigured to enableinstallation of SCSSV buwire-line, Fixed.

Number of SCSSV ControlLine / Well

2 Fixed.

Annulus Vent Yes -

Interfaces to Flowline Yes -

Tree Connector Yes -

TH System Yes -

ROV Interface Yes -

Control Junction YesFor umbilical control hook-up, Fixed.

Design Water Depth -1000m -

Other Design

Materials Carbon Steel (anti-corrosive overlay) -

Rigidity & Reliability Yes -

Operation Cycle MinimizedMay require interventionplan.

Operating Forces / Torque Maximum 50 lb-ft -

Design Loads ? -

Valve Actuator Yes -

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DBB Valve System Yes -

U-Value 0,7 -

Tree Piping Refer to ISO 13628-4 -

Tree Cap Required -Tree Guide Frames Required -

TFL Wye Spool Required -

Tree Running Tools Required -

Retrievable Choke Yes -

Sealing System Metal to Metal -

Storage TemperatureRange

-10˚C to 70˚C -

Tree Guide Frame YesProviding guidance forinstallation and intervention.

MechanicalPerformance

Maximum allowablemate/de-mate force

500N (112lbf)

Minimum mate/de-matecycle life

100 mates in turbid sand, salt andwater

Connector Shear LoadResistance

Maximum 6.75 metric tons

Hydrocarbon SealConfiguration

Seals of dissimilar designs andmaterials are required for all pressureboundaries/barriers. Metal seals arepreferred for all primary seals.

Misalignment EngagementConnector Inter-Changeability

Connectors shall be interchangeable(inter-mateable) between matinghalves and shall not be matched sets.

Debris

The wetmate interface shall bedesigned to be tolerant of debrispresent in the interface during normalmating operations.

Electrical Performance

Maximum Working Voltage 600 VDC

Test Voltage 2400 VDC

Maximum Working Current 5.0 AmpMaximum ContactResistance

˂30 ohm with 2.0 A load (excludingtest leads) per contact pair.

Insulation Resistance

- Qualification = 10 GΩ @1000 VDC

(1minute duration)- During FAT = 10 GΩ @500 VDC

(1minute duration)

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