Advanced Reservoir Engineering

Who should attend:

Reservoir engineers with a few years practical experience. Petroleum engineers that require more than general knowledge of reservoir engineering.

Overview:

In the business of exploration and production of oil and gas fields, integrated petroleum engineering studies and field development plans are management tools which are used to maximise economic production of hydrocarbons. Reservoir engineers fulfil a key role in handling, analysing and interpreting subsurface and production data at all stages of field development. The reservoir engineer is responsible for reserves assessment. In this course the key tools of modern practical reservoir engineering methods are discussed, explained and exercised.

Content:

• The role & influence of geological environments on oil and gas reservoirs.
• Fluid sampling (MDT), well logging, well testing as reservoir engineering tools, review of equations and applications.
• PVT parameters & fluid sampling, constant volume depletion (CVD) & constant composition expansion (CCE), differential liberation and application to saturated / under-saturated reservoirs
• Stochastic and deterministic modelling of shales, reservoir continuity. Reservoir flow systems.
• Capillary pressures, surface tension, wettability, Darcy’s Law and the inter-relation of these parameters. Pseudo relative permeability, movable oil, mobility ratio, effect of the WAG process on drainage and imbibition curves
• Application and effect of the above reservoir properties in reservoir simulation.
• Production forecasts and decline curve analysis.
• Viscosity and viscous fingering. Determination of critical flow rates.
• Theory and practice of oil and gas well testing and pressure analysis techniques, interpretation of pressure drawdown and build-up, examples, limitations and non uniqueness.
• Basic radial differential fluid flow equation, constant terminal rate solution & the Diffusivity Equation.
• Well inflow equations for stabilized flow conditions, steady and semi steady state, examples.
• Immiscible, incompressible and the Buckley Leverett 1D displacement theory, application to water flooding.
• Determination of fractional flow curves and oil recovery.
• Secondary recovery, new techniques & advances.
• Example of immiscible secondary recovery

At the end of the course participants will be able to understand and apply reservoir engineering methods and tools. They will have acquired the skills necessary for assessment of petroleum reserves, material balance calculations, short and long term development planning and to assess development uncertainties. Practical experience will be obtained in planning and evaluation of oil and gas well tests, reservoir modelling and enhanced recovery methods.

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