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Technology development in Statoil


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Technology development in Statoil

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