Oil and Gas

1. Develop a robust understanding of the key concepts underpinning the practice of reservoir engineering; encompassing rock and fluid properties, and the physics of multiphase flow in porous media.
2. Implement a range of analysis techniques to quantify recoverable volumes and productivity of oil, gas, and gas-condensate wells and reservoirs.
3. Expand traditional techniques to provide familiarity and understanding of more contemporary reservoir analysis for improved and enhanced recovery techniques, and resource-play reservoirs.
4. Determine input parameters and apply techniques to assess reserves and resource volumes.
5. Illustrate the appropriate uses of reservoir simulation and provide practical guidelines for planning reservoir modelling studies.

Session 1

• Fundamentals
• Reservoir Description (reservoir architecture, porosity and permeability, distribution of properties)
• Fluid Properties (sampling, composition, phase behaviour, PVT studies, EoS modelling and characterization) 
• Fluid Distribution (pressure vs. depth, capillary pressure, wettability, contacts)

Session 2

• Fluid Flow in Porous Media
• Darcy’s Law and Flow Potential (the 3 forces)
• Diffusivity equation (steady state flow, transient flow, pseudosteady state flow)
• Superposition
• Relative Permeability

Session 3

• Well Performance
• Inflow Performance (radial flow, productivity index, skin, coning/cusping, horizontal wells, vertical lift)
• Diffusivity equation (steady state, transient, and pseudo-steady state flow)
• Well testing (objectives, test types, after-flow, flow regimes for different well types, analysis techniques, gas well testing)
• Rate-time Analysis (RTA) Techniques
• Resource Estimates
• Resource and Reserves Definitions (Reserves vs. resources, SPE / PRMS Classification, other classification systems, levels of uncertainty)
• Probabilistic Estimates (proven, probable, possible, P90/P50/P10)
• Estimation Techniques (volumetrics, analogues, recovery factors, well drainage limits, decline curve analysis, material balance, simulation)

Session 4

• Drive Mechanisms & Evaluation Techniques
• Oil Reservoirs (fluid expansion and introduction to material balance, alternative depletion mechanisms)
• Material Balance applied to Oil Reservoirs
• Immiscible Displacement (waterflood)
• Fractured Reservoirs
• Gas Reservoirs (dry / wet gas, difference in approach to development, alternative depletion mechanisms)
• Material Balance applied to Gas Reservoirs
• Gas-condensate Reservoirs (differences with dry/wet gas reservoir, alternative depletion mechanisms)
• Material balance of gas-condensate reservoirs, and recovery factors
• ‘Resource Plays’ (shale gas, tight oil and gas, analysis and performance prediction techniques)

Session 5

• Improved/Enhanced Oil Recovery, IOR/EOR
• IOR Categories (infill recovery, miscible gas injection, chemical floods, thermal techniques)
• Screening and Analysis of Alternative Techniques
• Reservoir Simulation
• Principles of Simulation (finite-difference, streamline, alternative simulator types, input data, well models, history matching)
• Practice of Simulation (integration of disciplines, objectives, multi-scale modelling, reservoir modelling process, dealing with uncertainty)
• Upscaling (levels of scale, representativeness, pseudo relative permeability)

The course is designed to provide practicing mid- to senior-level engineers with a fuller understanding of the basis and applicability of their engineering work and to introduce additional approaches to their reservoir analyses. Manages and team leaders could also benefit from exposure to applied reservoir engineering topics.