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Technology development in Statoil

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  • 1. Technology Development in Statoil ONS-Stavanger 2010
  • 2. Technology development Exploration technology Reservoir, drilling & well production technologies Process & upgrading technology Refining and Market DISTINCT technologies EMERGING technologies BASE technologies CORE technologies
  • 3. Remote Hot Tap
  • 4. We rely on and stimulate to innovation and creativity!
  • 5. Subsea Hot Tap Technology ONS - Stavanger 2010 Kjell Edvard Apeland [email_address] +47 906 03 869
  • 6. The Hot Tap process
    • Hot Tapping means connecting a branch pipe to an existing pipeline without shutting down or disturbing production
    • A Hot Tap tee, high integrity valve and Hot Tap cutting machine is used
    • The Hot Tap cutting is performed through the open valve and the cut-out section is retracted through the valve
    • The valve is then closed and Hot Tap machine disconnected
    • The new branch pipe may be connected to the existing pipeline by industry standard tie-in tools
  • 7. Project objective and goals
    • Objective:
    • Remote operation / deep water application / high safety standard
    • Why important to develop subsea Hot Tap technology?
    • Reliable, flexible and cost effective tie-in to existing subsea pipeline systems
    • Provide full flexibility/independence when selecting tie-in location - cost effectiveness - utilize spare transport capacity in pipeline systems
    • Eliminate requirements for pre-installed Hot Tap tee
    • Goals:
    • Increased safety
    • Fully remote operation from standard intervention vessels
    • Increased depth and pressure capability for the Hot Tap technology
  • 8. Hot Tap technology - development milestones
    • 1999: Strategic development project initiated
    • 2005: Prototype qualification completed
    • 2008: First offshore operation
    • Successful remote Hot Tap operation at Statfjord field 145 meter water depth
    • 2009: World’s deepest remote Hot Taps performed at 860 m water depth at Ormen Lange field
  • 9. Ormen Lange Hot Tap
  • 10.  
  • 11. Remote Hot Tap system – ongoing development Remotely welded retrofit tee concept
    • Remote installation of a structural reinforcement clamp containing the branch pipe
    • Pressure barrier made by internal weld inside the branch pipe
    • Welding system contains all functions for making and monitoring the internal weld
    • First planned offshore use: 2012 Åsgard Minimum Flow project – Midgard Compression
  • 12. The RCP valve ONS presentation
  • 13. Can we increase the oil production?
    • Business challenge
    • Inflow control – from reservoir to well
    • Thin oil zones and heterogeneous reservoirs - gas and water coning
    • The answer is YES!
    • Using a device that is simple, robust and autonomous
    • With an estimated potential of 50 million barrels of oil on the Troll field alone
  • 14. RCP valve working principle
    • Based on the Bernoulli principle
    • Increased oil recovery by gas and water choking
    • Valves distributed along the producing well
    Movable disk oil gas
  • 15. Heavy oil production with the RCP valve
    • Comparing
    • water production with oil production
    • conventional technology with the new RCP valve
    • Conclusion
    • For similar water handling capacity the RCP valve will produce a lot more oil
  • 16.  

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