
Advanced Reservoir Simulation: Formulation, Initial of Boundary conditions & Running the Simulator
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Dynamic reservoir models are important when investigating reservoir behavior, optimizing reservoir performance, designing complex wells, estimating uncertainties and providing the basis for risk management. New developments, such as unstructured gridding, combined with new simulation techniques eliminate most of the drawbacks of conventional simulation methods and make predictions more reliable. The participants will learn about various algorithms, concepts and possible uses of reservoir simulators.
Upon successful completion of this course, the delegates will be able to:
ü Apply the principles of reservoir engineering to numerical modeling
ü Set up, run, and analyze the results for single well, pattern and full-field models
ü Prepare fluid and rock property data in the manner required for simulation studies
ü Identify and eliminate causes of numerical problems
ü Perform a history match
ü Use the matched model to predict future performance under a variety of assumptions
This course is intended for all experienced reservoir engineers. Attendees should have a basic knowledge of reservoir simulation, stochastic modelling, upscaling and some experience in the use of commercial reservoir simulators. Reservoir engineers with a few years practical experience. Petroleum engineers that require more than general knowledge of reservoir engineering.
Day 1:
o The concept of grid blocks and time steps
o Consequences of discretization
o Explicit and implicit functions
o Treatment of vertical saturation and pressure distributions
o History matching
o Well management
o Solution methods
Day 2:
o Checklist for model design
o Selecting the number of dimensions
o Simplification of complex problems
o Representation of reservoir fluids
o Representation of reservoir rock
o Well models – coupling between well and reservoir
o Data required for model construction
o Sensitivity of results to data accuracy
o Porosity and permeability
o Assignment of rock property distributions to the simulator
o Capillary pressure and relative permeability
o Fluid properties
o Establishing initial pressure and saturation distributions
Day 3:
o Criteria for selecting gridblock size
o Selection of gridblock size
o Example grids
o Selection of time steps
o Limiting numerical dispersion
o Grid orientation
o Cost consideration
o Terminology
o Formulating the equations
o Formulation options
o Numerical dispersion
o Choosing the formulation option
o Matrix equations
o Solution methods
o Selecting the equation-solving technique
o Overall design of a well-management routine
o Logic structure
o Logic sequence
o Individual well behavior
o Operations conditions
o Initial of boundary conditions and running the simulator
o Data requirement
o Up gridding and upscaling
Day 4:
o Objectives of matching historical reservoir performance
o Strategy and plans for history matching
o Manual adjustment of history- matching parameters
o Examples of adjustment required in history matching
o Special considerations in history matching
o Automatic history matching
o Planning the prediction cases to be run
o Preparation of input data for predictions
o Making a smooth transition from history to predictions
o Review and analysis of predicted performance
o Evaluating and monitoring predicted performance
Day 5:
o Compositional simulation
o Miscible displacement
o Chemical and polymer flooding
o Steam stimulation and steam drive
o In situ combustion
o Special data requirement
A variety of methodologies will be used during the course that includes:
· (30%) Based on Case Studies
· (30%) Techniques
· (30%) Role Play
· (10%) Concepts
· Pre-test and Post-test
· Variety of Learning Methods
· Lectures
· Case Studies and Self Questionaires
· Group Work
· Discussion
· Presentation
This rate includes participant’s manual, Hand-Outs, buffet lunch, coffee/tea on arrival, morning & afternoon of each day.
Daily Course Timings:
08:00 - 08:20 Morning Coffee / Tea
08:20 - 10:00 First Session
10:00 - 10:20 Coffee / Tea / Snacks
10:20 - 12:20 Second Session
12:20 - 13:30 Lunch Break & Prayer Break
13:30 - 15:00 Last Session