Well Test Design & Analysis – WTA

Last Update 01/21/2022
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About This Course

Learning Objective: This course stresses practical application of well test theory to design and interpret pressure transient tests. An integrated approach to well test interpretation is emphasized throughout the course. This course will focus on the different types of tests and techniques, both analytical and graphical, for data representation and analysis of well tests.

Target Audience: Engineers and geoscientists who wish to learn about well testing principles and interpretation methodologies so they can design, analyse, report, and evaluate results, as well as participate intelligently in the well testing process. It is preferred that you have prior experience in production and/or reservoir engineering. Prior well-testing experience is beneficial but not essential.

Outcome from this course:

  • Analyse drawdown and build-up tests in oil and gas wells
  • Identify flow regimes using the log-log diagnostic plot
  • Describe characteristic pressure behaviour for common bounded reservoir geometries
  • Types of techniques covered will include diagnostic plots-derivative for draw down, & build-up tests.
  • Participants will learn about the interpretation of complex data, such as those from well test in naturally fractured reservoirs, hydraulically fractured wells, horizontal wells, along with gas and gas condensate reservoirs.
  • There will be a Pre and post assessment at the end of this course


The basic concepts for test analysis

-Basic concepts for test analysis -Steady state, semi-steady state, and transient well performance -Radial Flow Theory -The Diffusivity Equation

Interpretation of well test data

-The Principle of Superposition -Drawdown and build-up testing -Semi-log analysis -Estimating average reservoir pressure

Interpretation of well test data

-Wellbore storage and type curve matching – -Diagnostic and derivative analysis -Formation damage & Skin factor -Radius of Investigation

Well test models

-Radial Composite Systems -Well in a Bounded Drainage Area -Channel Sands and Parallel Faults -Well Test Design

Special Topics

-Horizontal well testing -Analysis of Hydraulically Fractured Wells -Dual Porosity Systems -Double Permeability System

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