Discipline Reservoir Engineering
Duration5 Days
Delivery Mechanism Classroom
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ECLIPSE Compositional Simulation

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When oil consists of two or more hydrocarbons and those hydrocarbons exhibit distinctly different phase and composition changes relative to temperature and pressure, more complex definitions of fluid behavior are required for reservoir simulation and predictions of recovery. Compositional simulation is useful when an equation of state is required to describe reservoir fluid phase behavior or the compositional changes associated with depth. A compositional model is the right choice for studying condensates or volatile crude oils, gas injection programs, and secondary recovery studies. Knowledge of compositional behavior is also required for accurate planning and design of surface production facilities.

  • Agenda
  • Topics
  • Audience
  • Prerequisites
  • Agenda

    Day 1

    Introduction to PVT

    • Some basic PVT Concepts
    • Reservoir fluid types and behavior
    • Introduction to PVTi
    • Introduction to Compositional simulation
    • Components and compositions
    • Black oil and compositional fluid models.

    Fluid Modeling workflow

    • Samples representatively and quality checks
    • Laboratory tests and experiments
    • Splitting and grouping

    Day 2

    Compositional EoS and flash

    • Compositional Equations of State (EoS)
    • Compositional flash
    • The regression workflow

    Miscibility Modeling

    • Ternary diagrams
    • Miscible and immiscible fluids
    • Composition variation with depth
    • The slim tube experiment
    • The slim tube simulation exercise

    Day 3

    From ECLIPSE Blackoil to ECLIPSE Compositional

    • Black oil and compositional models
    • The solution methods
    • The different sections in ECLIPSE
    • Relative Permeability interpolations
    • The Oil Full field Model Exercise

    Day 4

    Gas modeling in ECLIPSE Compositional

    • Gas flow around wells
    • CO2 modeling for gas storage
    • The Condensate full filed model Exercise

    Day 5

    Other important options in ECLIPSE Compositional

    • Diffusion of oil in gas
    • Tracers
    • Lumping and de-lumping
    • Components in water
    • The Condensate competition exercise
  • Topics

    • Understand blackoil and compositional model definitions, equations, assumptions, approximations, and unknowns
    • Learn pressure-volume-temperature (PVT) practices and phase behavior
    • Understand structure and keywords
    • Learn about miscible, immiscible, and water-alternating-gas (WAG) displacement of an oil and gas injection into condensates
    • Use PVTi pressure-volume-temperature analysis software and ECLIPSE Compositional to model slim tube displacements
    • Learn about first contact miscibility and multi contact miscibility.
    • Understand condensing gas drive and vaporizing gas drive
    • Learn about solution scheme
    • Perform flash calculation
    • Understand equations of state (EOS)
    • Perform characterization and component lumping
    • Learn about surface tension effects
    • Learn about near-critical oil and gas relative permeability
    • Gas-water modeling and CO2 water solubility
    • Tracer tracking of compositional components
    • Conduct full field simulation exercises
  • Audience

    Reservoir engineers familiar with ECLIPSE Blackoil simulator who are interested in learning compositional simulation using ECLIPSE Compositional simulator

  • Prerequisites

    Pressure-Volume-Temperature (PVTi) or knowledge of Equation of State (EOS) modeling; reservoir engineering background or familiarity with the ECLIPSE Blackoil simulator

  • Prerequisites

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