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SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Lessons Learned vs. Implementation of novel technologySubsea Pumping Projects
Arne B. Olsen – Framo Engineering AS
Lessons Learned vs. Implementation of novel technologySubsea Pumping Projects
Arne B. Olsen – Framo Engineering AS
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
AS Norske Shell Draugen Field, North Sea
SMUBS – Shell Multiphase Underwater Booster Station• 1x750 kw subsea multiphase pump, installed in 1993• Hydraulically driven by WI system
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Statoil Lufeng Field, South China SeaSubsea Booster Pump System and Process Swivel
Installed :1997
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Topside Power with 3XPCM,Power turbine etc.
All ToolsAll Tools
3 Dual Pump Stations – 5 pumps
3 Dual Pump Stations – 5 pumps
3 Umbilical Systems
Amerada Hess - Ceiba Full Field Development
Installed in 2003
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Exeter Pump ManifoldExeter Pump Manifold Mutineer Pump ManifoldMutineer Pump Manifold
FPSOFPSO
Approx 7 km Approx 3 km
Santos Mutineer/Exeter - Field Overview
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
FRAMO Booster Pump Experience – September 2004
More than 350 000 running hoursaccumulated in subsea and topside
operations to date
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Subsea Boosting – Operating Experience
Production Impact
• All pump systems have met performance specifications
• Kick-off and production enabling from several ”dead” wells.
• Production increase by more than 100 % from naturally flowing wells
• Well balancing by boosting rather than choking; ”Positive choking”
• Flow stabilization due to increased velocity in flowlines
• Increased arrival temperature due to reduced heat loss
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Subsea Boosting – Operating Experience
Pump System Operability
• Simple, sequential and robust operating procedures proven.
• Changing reservoir conditions and production scenarios experienced• Speed control• Re-circulation valve
• Pump system insensitive to upstream flow instabilities / flow regimes
• Numerous production shut-downs and re-starts experienced
• Operation with closed suction valve experienced
• Influence on cooling capacity due to deposits from CPS on Cooling coils
• Current subsea instrumentation provide adequate condition monitoring
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Subsea Boosting – Operating Experience
Installation, Comissioning and Intervention
• Complete pump system test have proven very beneficial
• Short installation and commissioning time in the field
• Easy and time efficient pump replacement (1- 2 days)
• Guideline less intervention performed in 470 – 650 m depth
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Subsea Boosting – Challenges / Improvements
• Increased system and component robustness
• Improved operating procedures to minimize pump load
• Enhanced operator guidance
• Operator training and support
• Initial training programs
• Follow-up of installed systems
• Close cooperation with operator
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
• Field proven and robust technology
• High degree of operational flexibility• Improved robustness required:
- design - operating procedures- monitoring & control- operator training
Experience & Lessons Learned Summary
SPE APPLIED
TECHNOLOGY
WORKSHOP
– OSLO 8th
February 2005
Questions to Audience
1. What is the general perception of the Multiphase Pumping technology
2. Based on current status of the Multiphase Technology, what does it take to increase the use of this tool.
3. For which applications is MPP technology considered to be a good artificial lift candidate
