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## Applied Reservoir Simulation

Reservoir Engineering is the heart of Petroleum Engineering. In essence, reservoir engineering deals with the flow of oil, gas, and water through porous media, and the associated recovery efficiencies. The idea is to attain real-time or near one control on the assets, including continuous optimization of oil and gas production and maximization of recovery. Recently, Reservoir engineers are not only in deterministic solution but also probabilistic methods, economics, recovery processes, and reserves estimation.

Along with the fundamental reservoir engineering, students will gain additional and advanced knowledge to play and active and important role throughout the reservoir life cycle, including discovery, delineation, development, and production, and abandonment. Student will also equipped to understand the various phases of the reservoir management process, including setting a strategy, developing a plan, and implementing, monitoring, evaluating, and completing it.

This Applied Reservoir Simulation Training is designed to learn how the real-life reservoirs are managed effectively. The course is formulated to enhance the student or participant in generating strategically based on valid assumption in the absence of necessary data, as frequently is the case in the reservoir engineering profession. The course is to aid the student or participant alike in playing an active and important role throughout the reservoir life cycle the various phase of the reservoir management process with G&G fellow as asset team member in the project. The course is to equip the function of reservoir engineers how they analyze, think, and work in real-life situations.

## Course Info

## Schedule

**DAY 1**

Introduction Contents:

- Modeling Concept
- Data Gathering
- Formulations of simulation equations
- Solutions of simulation equations
- Pseudofunction
- Black oil & Compositional model
- Well treatment Initialization
- History matching
- Uncertainty
- Prediction
- Simulation model applications

Modeling concept Contents:

Porosity; discussion of porosity types, factors affecting porosity, porosity measurement, and key points as well as uncertainty in porosity and other rock property data.

Exercise:

computation of grain density and porosity of a core plug, average porosity of a formation.

Permeability; discussion of permeability measurement, linear fluid flow through porous media as well as in stratified system, factors and processes affecting rock permeability, Rock permeability correlations, and key points of rock permeability.

data; overviews of core analysis, Well Log analysis, Geophysic, Geostatistics.

Exercise: Estimation of water saturation and formation resistivity

Data gathering

Contents;

Pressure and temperature; discussion of hydrostatic gradient of connate water, types of pressure

Exercise: Estimate pressure and temperature of a new discovered reservoir, estimate expected pressure in certain zone

Classification of Reservoirs; Key points of reservoir classification and fluid properties

PVT properties of Reservoir Fluids; discussion of properties of natural gas, gas condensate, oil and water formation.

Formulations of simulation modeling

Contents;

Pressure and temperature; discussion of hydrostatic gradient of connate water, types of pressure

Exercise: Estimate pressure and temperature of a new discovered reservoir, estimate expected pressure in certain zone

Classification of Reservoirs; Key points of reservoir classification and fluid properties

PVT properties of Reservoir Fluids; discussion of properties of natural gas, gas condensate, oil and water formation.

Solutions of simulation modeling

Contents;

Pressure and temperature; discussion of hydrostatic gradient of connate water, types of pressure

Exercise: Estimate pressure and temperature of a new discovered reservoir, estimate expected pressure in certain zone

Classification of Reservoirs; Key points of reservoir classification and fluid properties

PVT properties of Reservoir Fluids; discussion of properties of natural gas, gas condensate, oil and water formation.

Pseudofunction

Contents;

Exercise: Estimate pressure and temperature of a new discovered reservoir, estimate expected pressure in certain zone

Classification of Reservoirs; Key points of reservoir classification and fluid properties

PVT properties of Reservoir Fluids; discussion of properties of natural gas, gas condensate, oil and water formation.

**DAY 2**

- Black oil & Compositional model

Contents;

Important Concepts in Fluid Flow; discussion of unsteady, steady, and pseudosteady state flow, incompressible, slightly compressible, and compressible fluids, Basic fluid flow equations.

Solutions to the Diffusivity Equation –Unsteady State or transient flow; discussion of case study of well producing at a constant rate or a constant bottomhole pressure

Exercise: Application of the diffusivity equation- reservoir characterization, Transient flow

- Well treatment

Contents

Data Types and sources; discussion of data sources

Data Acquisition and Analysis; discussion of data acquisition and analysis program

- Initialization

Contents

Data Types and sources; discussion of data sources Data Acquisition

- History matching

Contents

Data Types and sources; discussion of data sources Data Acquisition

**DAY 3**

- Uncertainty

Contents:

Natural Producing Mechanism; discussion of drive mechanism of reservoirs, reservoir performance analysis technique.

- Predictions

Contents:

Fundamentals of Volumetric Methods;

Associated Oil Reservoir; Exercise: with or without gas cap estimation

Gas Reservoir; Exercise: dry gas reservoir

Calculation Methods; Exercise: deterministic and probabilistic method to estimate OIP

- Simulation model applications

Contents:

Decline Curve Equations; discussion of DCA fundamental, DCA equations

Decline Curve; discussion of DCA Assumptions, methodology, and advance techniques

Exercise: Identification of decline trend and prediction, traditional method, DCA of a high water cut well, limitation of DCA technique, probabilistic analysis of well rate decline and recovery estimation.

- Case study: Field Development Plan

Contents:

Application of Oil Reservoir; discussion of material balance, performance prediction, MB analysis technique,

Application of Gas and condensate Reservoir; discussion of MB equation and flowing pressure method

- Case study: Water/Gas injection

Contents

Concept and Reservoir Simulator; discussion of simulation concepts and flow mechanisms, reservoir types and simulation value.

Mathematical Basis; discussion of partial differential equations, finite difference

Gridding Techniques

- Case study: CO2 injection

Contents

Concept and Reservoir Simulator; discussion of simulation concepts and flow mechanisms, reservoir types and simulation value.

Mathematical Basis; discussion of partial differential equations, finite difference

- Case study: Polymer injection

Contents

Concept and Reservoir Simulator; discussion of simulation concepts and flow mechanisms, reservoir types and simulation value.

Mathematical Basis; discussion of partial differential equations, finite difference

Applied Reservoir Simulation Training is set for Reservoir Engineers responsible for conducting comprehensive reservoir studies and simulations.

Sr Reservoir Engineer Consultant with 18+ years experiences in Oil & Gas Industry. Having strong passionate on Petroleum Engineering, Enhance Oil Recovery, and Reservoir Engineering. Now, he is a full time lecture in Petroleum Engineering Department, Pertamina University, Indonesia and PhD Candidate from Petroleum Engineering Department.