Oil and Gas

Oil and Gas | Reservoir Engineering

Enhanced Oil Recovery using CO2: Techniques, Practices and Simulation

Course Code: N956
Instructors:  Yucel Akkutlu
Course Outline:  Download
Format and Duration
3 days


This course provides clear, concise and practical information for understanding, simulating and implementing carbon dioxide recovery projects. Case studies are used to demonstrate a variety of evaluation and predictive techniques using experimental, analytical and numerical methods. Operational aspects including transportation, injection, separation, reinjection and corrosion are discussed.

Duration and Training Method

A three-day classroom course, with time equally divided among lectures, case studies and computer-based practical exercises. 

Course Overview

Participants will learn to:

  1. Judge the technical reasons for the recent increase in gas injection operations in the US.
  2. Implement EOR screening.
  3. Assess the merits of lean-gas and enriched-gas injection operations.
  4. Characterize the nature of miscible and immiscible flooding.
  5. Select laboratory tests and screening for pilot design.
  6. Assess minimum miscibility and injection pressure of a CO2 injection operation.
  7. Predict the effects of hydrodynamic instabilities on the oil displacement front.
  8. Estimate recovery efficiency of a CO2 injection using analytical viscous fingering models.
  9. Create a compositional equation of state model for simulation of CO2 injection.
  10. Optimize a CO2 injection operation using simulations.
  11. Evaluate and address operational aspects of CO2 projects.

The course will help engineers understand, simulate and practice the major enhanced oil recovery techniques. The course involves projects that are designed to practice the oil recovery techniques using analytical, statistical and numerical simulation models. The numerical approaches are using CMG GEM (equation-of-state compositional simulator), and STARS (three-phase multi-component thermal simulator).


Topics Covered

1. Introduction

  • Review of Enhanced Oil Recovery (EOR) Techniques
  • EOR Screening and identification of candidate reservoirs for CO2 injection
  • Current Status of EOR Projects in the US

2. CO2 Process Facilities

  • Oil production and processing facilities
  • Corrosion management in oil production and processing operations
  • Gas gathering systems
  • CO2 surface facilities

3. CO2 Injection Considerations

  • Locating the source
  • Sub-critical and super-critical CO2
  • Completion design
  • Conformance control
  • Gravity control
  • Well testing

Fundamentals - Immiscible Oil and Gas Displacement

  • Recovery efficiency concept
  • Microscopic displacement efficiency
  • Macroscopic displacement efficiency

4. Fundamentals - Miscible Oil and Gas Displacement

  • First-contact and multiple-contact (dynamic) miscibility; ternary-diagrams; condensing and vaporizing gas drive processes
  • Miscible fluids and dispersive mixing; mixing cell theory
  • Viscous fingering: initiation, growth and modeling

5. Miscible Gas Injection Methods

  • Hydrocarbon gas (lean and enriched)
  • Inert gas (air, nitrogen and CO2)
  • Acid gas

CO2 Injection Methods

  • Single-well cyclic stimulation
  • Injector-producer well patterns and flooding
  • Water-alternating-gas (WAG)

6. Laboratory Tests for Gas Injection

  • Hele-Shaw experiments
  • PVT analysis and CO2-hydrocarbon phase behavior predictions
  • Slim-tube experiments
  • Flooding experiments

7. Reservoir Simulation CO2 Enhanced Oil Recovery

  • Introduction to Petroleum Reservoir Flow Simulation
  • Five-spot well pattern simulation projects:
    -CO2 flooding
    -Conversion into enriched gas using hydrocarbons
    -Conversion into thermal/solvent injection
    -Economic Evaluation

8. CO2 Injection into Unconventional Resources

  • CO2-enhanced coalbed methane recovery
  • CO2-enhanced organic-rich shale gas and oil recovery
  • CO2 injection into natural gas hydrate resources

9. Environmental Considerations into CO2 Injection

  • EOR as a CO2 sequestration method

10. Future of EOR and CO2 Applications

The course is designed for mid to senior level engineers as well as engineering managers looking for a detailed understanding of CO2 processes.

Yucel Akkutlu

Dr. Yucel Akkutlu is Rob L. Adams ’40 Professor in Petroleum Engineering and William Keeler faculty fellow at Texas A&M University, College Station, TX, USA. He previously worked as a faculty for the University of Oklahoma, USA, and University of Alberta, Canada. He is a chemical engineer and received Ph.D. in petroleum engineering from the University of Southern California in Los Angeles. He teaches undergraduate and graduate-level courses in petroleum reservoir engineering, petrophysics, and physical sciences.

His research focuses on characterization and exploitation of unconventional oil and gas resources, enhanced oil recovery, and oilfield chemistry. He has written more than 100 peer-reviewed journal articles and conference proceedings, six book chapters, and has four patents. He is the author of “Nano-confined Petroleum Recovery from Source Rocks,” which will be published in 2020. He has received over $3 million in external research funding during the last 10 years from sources such as the US Department of Energy (DOE), Natural Sciences and Engineering Research Council of Canada (NSERC), and the unconventional oil and gas industry.

He is a distinguished member of the Society of Petroleum Engineers (SPE). He was the executive editor of the SPE Journal 2013-2016. He was 2014-15 SPE distinguished lecturer. He received 2020 SPE International Lester C. Uren award, 2017 TAMU-Association of Former Students teaching award, 2016 TAMU-Association of Former Students distinguished achievement award, and 2015 AIME Rossiter W. Raymond memorial award. Akkutlu served in various SPE, EAGE, and NSERC committees.

Affiliations and Accreditation
PhD University of Southern California - Petroleum Engineering
MSc University of Southern California - Petroleum Engineering
BSc Hacettepe University - Chemical Engineering

Courses Taught
N274: Unconventional Resource Engineering for Geoscientists
N279: Geological Characterization and Engineering of Unconventional Oil and Gas Shales: Classroom and Field Seminar (Oklahoma, USA)
N484: Resource Management for Unconventional Oil and Gas Plays
N956: Enhanced Oil Recovery using CO2: Techniques, Practices and Simulation
N973: Reservoir Engineering for Unconventional Gas and Tight Oil Reservoirs
N989: Rate and Pressure Transient Analysis for Unconventional Reservoirs
RM01: Fundamentals of Unconventional Reservoir Engineering for Earth Scientists

CEU: 2.4 Continuing Education Units
PDH: 24 Professional Development Hours
Certificate: Certificate Issued Upon Completion
RPS is accredited by the International Association for Continuing Education and Training (IACET) and is authorized to issue the IACET CEU. We comply with the ANSI/IACET Standard, which is recognised internationally as a standard of excellence in instructional practices.
We issue a Certificate of Attendance which verifies the number of training hours attended. Our courses are generally accepted by most professional licensing boards/associations towards continuing education credits. Please check with your licensing board to determine if the courses and certificate of attendance meet their specific criteria.