Well Test Design and Analysis

Well Test Design and Analysis

INTRODUCTION

This 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.

WHO SHOULD ATTEND?

Reservoir engineers, production engineers, and any field personnel involved with the design and interpretation of well 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