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E-670 - Pipeline Hydraulics & Multiphase Flow

  • Engineers involved in designing, constructing or operating oil and gas production facilities
  • To provide a practical understanding of pipeline hydraulics, flow simulation, and pipe friction loss calculations
Learning Objectives
  • To assess friction losses in a pipeline and fittings for a single-phase flow
  • To understand multiphase flow patterns and main perturbing factors
  • To grasp multiphase flow hydrodynamics for wet gas streams and crude oil streams
  • To understand operational constraints of single and multi-phase flow lines
  • To deal with pipeline flow assurance issues
  • To simulate a pipeline using the software program OLGA™
Ways and means
  • Highly interactive training by industry-specialist lecturers
  • Several applications and illustrations
  • Use of simulation software programs OLGA™ and Multiflash™

Fundamentals of fluid mechanics friction losses in single-phase flow 1.5 days
  • Total energy of a fluid - Bernoulli law
  • Real fluid flow: viscosity, friction coefficient
  • Flow regimes: laminar and turbulent (eddy) flows - Reynolds number
  • Calculation of friction loss through pipes: Moody chart, AFTP charts (Lefevre)
  • Calculation of friction loss through fittings
  • Method 1: resistance coefficient
  • Method 2: equivalent straight pipe length
  • Case of compressible fluids (gas) - Main empirical equations
  • Several exercises
Multi-phase flow in oil & gas production 0.5 day
  • Incentives and stakes
  • Definition of multi-phase flow
  • Main terminology
  • Basic understanding of different modeling approaches
  • Historical methods to study steady-state two-phase flow
  • Example of multi-phase dynamic flow simulator OLGA™
  • Future with multi-phase flow modeling
Flow assurance 1 day
  • Main flow assurance issues
  • Flow stability: Flow pattern (horizontal and vertical) - Slugging
  • Erosion constraints, Wax, Hydrates
  • Heat transfer: main heat transfer phenomenon, OHTC, cold spot issue
  • Fluid modeling (example with Multiflash™)
  • Phase envelope, hydrate dissociation curve, emulsion, viscosity
Well gas streams 1 day
  • Natural gas field development
  • “Dry” scheme versus “Wet” scheme
  • Main Flow Assurance issues (hydrates, TLC, surge liquid volume handling)
  • “Wet” scheme simulations
  • Operating envelope
  • Geometry impacts
  • Example of Slugcatcher design
Crude oil streams 1 day
  • Crude oil field development
  • Deep water constraints
  • Typical Field Preservation
  • Classical loops versus alternative development architectures
  • Subsea processing
  • Crude oil stream
  • Severe slugging
  • Hydrodynamic slug flow - Slug-catcher design
  • Thermal constraints during production / transient (cool down)