Advanced Well Test Analysis
Level: Advance
Upcoming Sessions:
To Be Determined
Please Contact Us at tahmed@mtech.edu for more information
Instructors: Dr. Djebbar Tiab
Designed for:
This course is design for technical professionals who desire an in-depth understanding of well testing
principles and interpretation techniques to design, analyze, report, and evaluate well testing procedures.
Course Overview:
This is a comprehensive and advance course that stresses a practical approach to well testing theories.
It provides an in-depth description of the theory of transient flow analysis. Numerous examples and excises
are used throughout the course to reinforce the concepts illustrated.
Course Content:
- Fundamentals of Well Test Analysis - Review
- Basic fluid flow equation
- Fundamentals of Pressure Derivative
- Dimensionless pressure, skin and wellbore storage
- Semilog analysis, type-curve matching
- Pressure Drawdown, Reservoir limit test
- Pressure buildup analysis in bounded systems
- Numerical Examples
- Modern Techniques of Well Test Analysis
- Interpretation of log-log plots of pressure and derivatives without using type-curve matching: permeability, skin, wellbore storage
- Tiab's Direct synthesis (TDS): short tests, special cases
- Well Near Sealing Faults
- Well Between Multiple Boundaries
- Closed Reservoirs, Developed Bounded Reservoirs
- Average Reservoir Pressure
- Numerical Examples
- Hydraulically Fractured Wells
- Interpretation of pressure tests in hydraulically fractured wells using pressure and derivatives, linear plots, semi-log analysis
- TDS: uniform flux, infinite conductivity fractures
- Finite conductivity fractures
- Inclined fractures
- Average reservoir pressure
- Numerical Examples
- Gas Well Testing
- Pressure and Pressure-squared Concepts
- Fundamentals of Pseudo-Pressure Function
- Non-Darcy Flow
- TDS Technique
- Hydraulically Fractured Wells
- Numerical Examples
- Pressure Behavior of Naturally Fractured Reservoirs (NFR)
- Pressure Derivative and type-curve matching
- Application of the TDS Technique in NFR
- Pseudo-Steady State and Unsteady state Matrix Flow
- Fracture Porosity Determination from Well Tests
- Average Reservoir Pressure
- Elliptical Flow
- Post-Deep Acidizing Pressure Test
- Numerical Examples
- Multilayer & Composite Reservoirs
- Mathematical Models
- Commingled Reservoirs
- Reservoirs with Crossflow
- Conventional Techniques
- Pressure Derivative Techniques
- Numerical Example
- Testing Under Multiphase Flow Conditions
- Pressure-Based Interpretation Techniques
- Role of Fluid Properties
- TDS Technique
- Numerical Examples
- Multi-rate Testing
- Basic Equations
- Conventional Interpretation of Two-Rate Tests
- Modern Interpretation of Two-Rate Tests
- Variable Rate Tests
- Numerical Examples
- MDT Tool: Pressure Analysis
- Objective and Interpretation of Pretests
- Determining Fluid Contacts and Layering from Pressure Gradients
- Permeability & Anisotropy Profiling
- Spherical Flow Regime
- MDT Pressure Analysis - Conventional Techniques
- MDT Pressure Analysis - Modern Techniques
- Exercises
- Field Cases
- Well Test Design
- Overview
- Types and Purposes of Well Tests
- General Test-Design Considerations
- Pressure Transient Test Design
- Exercises