1. Gas Lift in Subsea Wells
Suppliers – what are current activities?
Supplier #1
Focus on high rate, high pressure, high value, high risk projects
Involvement in Front End Engineering Design
Heavily weighted toward risk management
Solutions vary with Operating Philosophy
Long R&D Process for non-standard equipment

2. Gas Lift in Subsea Wells
Supplier #2
Dealing primarily with single point injection
Working to improve reverse-flow valve performance
Surface control is focused on hydraulic control because of reliability and track record with hydraulic sleeves, etc.

3. Gas Lift in Subsea Wells
Current applications
Single point venturi nozzle injection in subsea wells (also tree lift for kickoff)
IPO unloading valves used only in dry tree locations
Operators – current and near future needs
3000 psi+ and 3000 Meters water depth
Some just beginning subsea applications
Riser lift?
None yet. Perhaps Total at Girassol.

4. Gas Lift in Subsea Wells
Lift Method selection
Heavily based in risk management
Barriers to overcome
ESP
Run life must be > 2 years to be profitable
Power availability (deck space and deck load limits)
Power delivery through rotating turret on FPSO
Gas Lift
Additional Compression (deck space and deck load limits)
Flow assurance concerns – hydrates
Unloading valve pressure limits

5. Gas Lift in Subsea Wells
Operating Concerns
Small training requirements for operators due to single point lift
Good technical support system is a must for optimisation
Supplier support to operations
Primarily service support for installation, commissioning and handover to operator.