Reservoir Simulation

Program Objectives

The course starts with an overview of the fundamental principles of reservoir simulation and explains various types of simulators including black-oil, compositional, and dual porosity. The role of simulation in managing a reservoir is also highlighted. This overview is followed by a detailed discussion of the required input data for a simulation- including rock properties, rock-fluid interactions, and PVT data. Various options for modeling both vertical and horizontal wells are also presented.

This section is followed by a discussion of gridding options and the factors which should be considered when choosing a grid. The impact of both grid size and orientation are shown. The key steps to making a successful history match are then discussed and the main concepts illustrated by hands-on exercises. The final section of the course explores the concept of upscaling and the impact it has on full-field modeling. An important feature of the course is that attendees apply what they learn by running simulations throughout the week.
Course Outline
Day 1
  • Introduction
  • Simulator Types
  • Basic Principles
  • Review of Mathematics
  • Formulation of Equations
  • Mass Balance Equation
  • Darcy’s Law
  • Simulator Flow Equations 
Day 2
  • Role of Simulation
  • Modeling Fundamentals
  • Rock Properties
  • Rock-Fluid Properties
Day 3
  • PVT
  • Well Models
  • Discretization
  • Formulation Options
  • Water Influx
    • Water drive classification
    • Aquifer classification 
    • Water-drive diagnosis
    • Key aquifer properties 

Day 4
  • Black-oil reservoirs
    • Material balance and recovery strategies
    • Importance of compaction in oil reservoirs 
    • Estimating oil well rates
    • Solution-gas-drive reservoir performance
    • Gas-cap-drive reservoir performance
    • Water-drive reservoir performance 
    • Analyzing performance using material balance 
Day 5
  • Volatile-oil and gas-condensate reservoirs
    • Estimating well rates
    • Volatile-oil reservoir reservoir performance
    • Gas-condensate reservoir performance
    • Gas cycling 
    • Dewpoint cycling 
    • Analyzing performance using material balance