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Todd Hoffman

EOR For Unconventional Reservoirs

Todd Hoffman
12:07 Hours
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Sample Lesson
This intermediate-level course explores Enhanced Oil Recovery (EOR) techniques specifically tailored for low permeability unconventional reservoirs. Covering a decade of advancements, the focus is on the widely used huff-n-puff gas injection method, including how to forecast production and estimate injection volumes. The course also reviews continuous injection, water/surfactant injection, and thermal EOR techniques. Students will learn from real field trials across major North American basins with discussions on operational implementation practices. The course aims to equip reservoir engineers with practical tools and considerations to optimize unconventional reservoir recovery.

Who Should Take This Course
• Engineers implementing EOR projects
• Intermediate-level technical learners
• Reservoir engineers and petroleum professionals
• Professionals focused on unconventional reservoirs

What You Will Learn
• Examine operational aspects of EOR
• Understand huff-n-puff gas injection
• Review field trial results and lessons
• Predict production and injection volumes

Why This Course Works
• Need for better recovery methods
• Growing application of EOR in various basins
• Practical guidance for project implementation
• Low recovery factors in unconventional reservoirs

1.01 Unconventional Reservoirs Introduction (15 min.) 
1.02 Geology & Hydrocarbon Formation (18 min.)
1.03 Rock & Fluid Properties (15 min.)
1.04 Horizontal Drilling Multistage Fracturing (28 min.)
1.05 Enhanced Oil Recovery (EOR) (25 min.)
1.06 Screening Criteria & Cyclic Injection (19 min.)

2.01 Early Bakken Projects (25 min.)
2.02 Bakken Case Study & Modeling Project (18 min.)
2.03 Eagle Ford Case Study 1 (27 min.)
2.04 Eagle Ford Case Study 2 (28 min.)
2.05 Case Studies in Other Basins (34 min.)

3.01 Huff-n-Puff Gas Injection (28 min.)
3.02 Contribution of different mechanisms (25 min.)
3.03 Injection Amounts Part 1 (18 min.)
3.04 Injection Amounts Part 2 (27 min.)
3.05 Estimating Rates (22 min.)
3.06 Reservoir & Injection Fluids (19 min.)

4.01 Water Injection (19 min.)
4.02 Surfactant Injection (15 min.)
4.03 High Pressure Air Injection (HPAI) (25 min.)

5.01 Operational Aspects I (33 min.)
5.02 Operational Aspects II (20 min.)
5.03 Laboratory Experiments (30 min.)
5.04 Reservoir Simulation Aspects (25 min.)
5.05 Economical Aspects (17 min.)

6.01 Review & Summary (21 min.)

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