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Page 1: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or
Page 2: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

www.infinity-limited.com

Heavy Oil Development – A Flow Assurance Challenge

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Non-Newtonian viscosities dependent on shear rate

Heavy oils, fluids that deviate from the classic Newtonian behaviour

Non-Newtonian Fluids

Page 3: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

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Heavy Oil Development – A Flow Assurance Challenge

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Non-Newtonian Fluids

Page 4: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

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Heavy Oil Development – A Flow Assurance Challenge

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Non-Newtonian FluidsProperties of non-Newtonian fluidBentley

KrakenMariner/Bressay

CoronaCaptain

Page 5: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

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Heavy Oil Development – A Flow Assurance Challenge

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Multiphase Simulator

Model

Interpretation

Data

Page 6: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

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Heavy Oil Development – A Flow Assurance Challenge

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Heavy Oil

Page 7: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

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Heavy Oil Development – A Flow Assurance Challenge

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Heavy Oil – Main Challenges• Transport• High Pressure Drop• Gathering valid lab data

• Emulsions and Separation during testing

50% WC at 40DegC40% WC at 40DegC

Page 8: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

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Heavy Oil Development – A Flow Assurance Challenge

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Thermodynamics• Need good lab test data• Must tune the fluid files

to match lab data before any analysis performed

Page 9: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

www.infinity-limited.com

Heavy Oil Development – A Flow Assurance Challenge

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OLGAOLGA fails to predict the separation of the phases when the emulsion breaks

How to tackle this issue?

Start-up after cooldown non-representative of real system

• Initial Conditions for start-up• Plugs in system (oil and water allowed to separate)• Complex Fluid Module

Is core annular flow scalable?

Interpretation

Page 10: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

www.infinity-limited.com

Heavy Oil Development – A Flow Assurance Challenge

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OLGA

Complex Fluid Module

High Viscosity or Shear Thinning or High Yield Stress

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.

Page 11: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or

www.infinity-limited.com

Heavy Oil Development – A Flow Assurance Challenge

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Greenfield vs Brownfield

Reservoir Subsea System Topsides

• New Technologies

• Control Production

• Artificial Lift

• Separation Efficiency

• Cost Benefit

Page 12: Heavy Oil Development – A Flow Assurance Challenge · Heavy Oil Development – A Flow Assurance Challenge 9 of 10 OLGA Complex Fluid Module. High Viscosity or Shear Thinning or