COURSE OVERVIEW:

This course provides a focused and practical understanding of gas injection mechanisms used for improved and enhanced oil recovery in conventional and unconventional reservoirs. It covers the physics of displacement, miscible and immiscible gas injection, key reservoir and fluid properties, pattern design, surveillance, and performance interpretation. Participants will explore different gas types (natural gas, CO₂, hydrocarbon gas, nitrogen), understand their interaction with reservoir fluids, and learn how to design, monitor, and optimize gas injection projects while managing operational and subsurface risks. Case studies will be used to link theory with field practice.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

1. Explain the fundamental concepts of primary, secondary, and tertiary recovery and the role of gas injection within enhanced oil recovery strategies.
2. Describe key reservoir rock and fluid properties that control gas injection performance and recovery efficiency.
3. Distinguish between immiscible, near miscible, and miscible gas injection mechanisms and their application windows.
4. Explain the concepts of minimum miscibility pressure, displacement efficiency, and sweep efficiency for gas injection processes.
5. Compare different injected gases (natural gas, CO₂, hydrocarbon gas, nitrogen) in terms of phase behavior, availability, and operational constraints.
6. Describe the main gas injection configurations including pressure maintenance, gas cycling, gravity drainage, and water alternating gas (WAG).
7. Interpret phase behavior diagrams and PVT data relevant to gas injection project design and forecasting.
8. Identify key parameters used in screening reservoirs for gas injection feasibility and candidate selection.
9. Outline the steps involved in designing gas injection patterns, well spacing, and injection allocation within a field.
10. Explain common operational challenges such as gas channeling, early gas breakthrough, and injectivity decline and how to mitigate them.
11. Use surveillance data such as pressure, rates, gas oil ratio, and tracers to evaluate gas injection performance.
12. Understand the role of analytical methods, numerical simulation, and material balance in forecasting and history matching gas injection projects.
13. Recognize health, safety, and environmental risks associated with high pressure gas handling and subsurface storage or cycling.
14. Evaluate economic and operational trade offs between different gas injection strategies and alternative recovery options.
15. Communicate gas injection project status, risks, and optimization opportunities clearly to multidisciplinary teams and management.

TARGET AUDIENCE:

-Reservoir engineers and petroleum engineers involved in field development and EOR projects

-Production and operations engineers working in gas injected fields

-Geoscientists supporting reservoir characterization and fluid description for gas injection

-Field development planners and asset managers evaluating recovery improvement options

-Petroleum engineering technologists and analysts involved in surveillance and data interpretation

-Project and facilities engineers interfacing with gas supply, compression, and injection systems

-HSE and risk engineers concerned with high pressure gas operations and subsurface storage

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximise the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and after the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.