Non-Newt ewtonian F Fluids Heavy oils, fluids that deviate from - PowerPoint PPT Presentation

Heavy Oil Development – A Flow Assurance Challenge Non-Newt ewtonian F Fluids Heavy oils, fluids that deviate from the classic Newtonian behaviour Non-Newtonian viscosities dependent on shear rate www.infinity-limited.com 1 of 10

Heavy Oil Development – A Flow Assurance Challenge Non-Newt ewtonian F Fluids www.infinity-limited.com 2 of 10

Heavy Oil Development – A Flow Assurance Challenge Non-Newt ewtonian F Fluids Bentley Properties of non-Newtonian fluid Kraken Mariner/Bressay Corona Captain www.infinity-limited.com 3 of 10

Heavy Oil Development – A Flow Assurance Challenge Multi tiphase S e Simulator or Model Data Interpretation www.infinity-limited.com 4 of 10

Heavy Oil Development – A Flow Assurance Challenge He Heavy O y Oil www.infinity-limited.com 5 of 10

Heavy Oil Development – A Flow Assurance Challenge He Heavy O y Oil – Main C Challen enges es • Transport • High Pressure Drop • Gathering valid lab data • Emulsions and Separation during testing 40% WC at 40DegC 50% WC at 40DegC www.infinity-limited.com 6 of 10

Heavy Oil Development – A Flow Assurance Challenge Ther ermod odynamics • Need good lab test data • Must tune the fluid files to match lab data before any analysis performed www.infinity-limited.com 7 of 10

Heavy Oil Development – A Flow Assurance Challenge OLGA OLGA fails to predict the Start-up after cooldown non- separation of the phases representative of real system when the emulsion breaks How to tackle this issue? • Initial Conditions for start-up • Plugs in system (oil and water allowed to separate) Is core annular flow scalable? • Complex Fluid Module Interpretation www.infinity-limited.com 8 of 10

Heavy Oil Development – A Flow Assurance Challenge OLGA High Viscosity or Shear Thinning or High Yield Stress Complex Fluid Module Bingham, Power law or Newtonian (High Viscosity) • This method will significantly improve the results and the accuracy of the model; • It requires trial and error to benchmark results with lab data (viscosity) to define the yield stress/consistency factor. www.infinity-limited.com 9 of 10

Heavy Oil Development – A Flow Assurance Challenge Greenfield v vs Brownfield Reservoir Subsea System Topsides • Separation Efficiency • New Technologies • Cost Benefit • Control Production • Artificial Lift www.infinity-limited.com 10 of 10