Equations of State and PVT Analysis

Level: Advance

Upcoming Sessions:

To Be Determined
Please Contact Us at tahmed@mtech.edu for more information
Instructor: Dr. Tarek Ahmed

Objective:

A 5-Day course that is designed to provide engineering with basic and advanced concepts in phase behavior, understanding PVT laboratory analysis, and performing QC/quality assurance tests on laboratory data. The participant will be exposed to a comprehensive treatment of equations of state, applications, and proper tuning. Flow assurance and related topics will be covered in the course.

Requirements:
  • Participants are encouraged to bring their own laboratory data to discuss with the instructor
  • Participants are required to bring their own laptop computers
  • Participants will receive a PVT software
  • Participants are encouraged to bring field data to perform field optimization and developments
Course Content:
  1. Fundamental of Hydrocarbon Phase Behavior
    • Hydrocarbon Fluids Sampling
    • OBM Contamination
    • Skimming Technique
    • Adjusting PVT to Account for OBM Contamination
    • Volumetric Behavior of Hydrocarbon Mixtures
    • Locating Gas-Oil Contact
    • Critical Mixtures
    • Characterization of the Plus-Fraction

  2. Behavior of Retrograde Gas & Near Critical Oil Reservoirs
    • Volumetric Behavior of Retrograde Gas Reservoirs
    • MBE for Retrograde Gas Reservoirs
    • Liquid Blockage

  3. Basic Laboratory Data
    • Understanding Laboratory Data
    • Routine Laboratory Tests
      • Constant Composition Expansion Tests “CCE”
      • A New Method to Analysis CCE Test Data
      • An Approach for Verifying the Reported Saturation Pressure
      • Differential Liberation Tests “DE”
      • Generating Liquid Deviation Factor “Z L ” from the CVD
      • Generating Relative Permeability Ratio from the CCE
      • Separator Tests
      • Determining Gas Equivalent Volume from Y and GCR
      • Constant Volume Depletion Tests “CVD”
      • Extrapolating and Correcting Laboratory Data to New Saturation Pressure
      • Swelling Tests
      • Slim Tube Tests
      • Flow Assurance Tests

  4. Quality Assurance and QC of Laboratory Data
    • Identifying the “Outlier” data
    • Hofmann Plot
    • QC Recombination Sample
    • QC Laboratory Overall Composition
    • QA & QC Laboratory Data, including:
      • DE
      • CCE
      • CVD

  5. Characterizing Hydrocarbon-Plus Fractions
    • Splitting the Plus Fraction for Equation
    • Newly Developed Splitting Procedure
    • Proper Lumping Schemes for Equation of State Applications
    • Characterization of Multiple Hydrocarbon Samples

  6. Equations of State and Phase Equilibria
    • Equilibrium Ratios
    • Flash Calculations
    • Van der Waals’ Equation of State
    • Redlich-Kwong Equation of State
    • Soave-Redlich-Kwong EOS
    • Peng-Robinson EOS
    • Fugacity and Fugacity Coefficient
    • Binary Interaction Coefficient
    • Volume Shift Parameter
    • Gibbs Free Energy
    • Simulation of laboratory Tests by Equations of State

  7. Tuning Equations of State
    • Why do we Tune EOS?
    • Understanding the Limitations of EOS
    • Proper Selection of EOS Tuning Parameters
    • Proper Selection of EOS Tuning Parameters
    • Step-by-Step Procedure of Tuning EOS
    • Viscosity Matching Using LBC Method