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