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ICTD International Centre for Training and Development

Well Testing Design Analysis & Interpretation

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Description

This five-day course will focus on the different types of tests and techniques, both analytical and graphical, for data representation and analysis of well tests. Types of techniques covered will include diagnostic plots-derivative for draw down, and buildup 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. Each day participants will see examples of the types and techniques discussed along with practice problems.

Course Objectives

Upon successful completion of this course, the delegates will be able to:

  • 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
  • Learn about the need for testing and the states of well performance
  • Learn about diagnostic and derivative plots analysis
  • Learn about the interpretation methodology of various types of well testing
  • Learn about the interpretation of well test data in naturally fractured reservoirs
  • Learn about well test analysis in gas and gas condensate reservoirs
  • Learn about pseudo-pressure and type curve analysis techniques, along with phase redistribution
  • Learn about interference test and reservoir limit tests

Course Outline

Day 1

TYPES OF TEST ANALYSIS

  • Steady state, semi-steady state, and transient well performance
  • Basic concepts for test analysis
  • Drawdown and buildup testing
  • Semilog analysis and estimating average reservoir pressure

Day 2

DIAGNOSTIC AND DERIVATIVE ANALYSIS

  • Diagnostic and derivative analysis
  • Wellbore storage and type curve matching
  • Sealing faults and stratigraphic pinchouts
  • Late time boundary and depletion effects

Day 3

TYPES OF WELL TESTING

  • Interpretation of well test data
  • Analysis of post-fracture tests
  • Variable rate analysis methods
  • Horizontal well testing
  • Multi-well testing

### Day 4

ANALYSIS GAS AND GAS CONDENSATE RESERVOIRS

  • Modifications for gas wells and multiphase flow
  • Well test analysis in gas and gas condensate reservoirs
  • Pseudo-pressure and type curve analysis techniques
  • Phase redistribution

Day 5

DST

  • DST key features
  • DST design and analysis
  • Interference tests
  • Reservoir limit tests
  • Well test design and step-by-step procedure

Course Methodology

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

Who should attend

This course is intended for all drilling engineers, reservoir engineers, petroleum and production engineers, development asset and project managers.

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