Skip navigation

Bookboon.com Download free eBooks and textbooks

Choose a category

Introductory Well Testing

Introductory Well Testing
Not enough reviews yet
ISBN: 978-87-403-0445-9
1 edition
Pages : 103
Price: Free

Download for FREE in 4 easy steps...

We are terribly sorry, but in order to download our books or watch our videos, you will need a browser that allows JavaScript.
After entering your email address, a confirmation email will be sent to your inbox. Please approve this email to receive our weekly eBook update. We will not share your personal information with any third party.

You can also read this in Bookboon.com Premium

Summary

The objective of this book is to provide an easy to read introduction to classical well test theory. No previous knowledge in well testing is required.

300+ Business books exclusively in our Premium eReader

  • No adverts
  • Advanced features
  • Personal library
More about Premium

Buy this eBook

Buy now

Subscribe to all 800+ eBooks

Start free trial 30 day FREE trial

About the book

  1. Description
  2. Preface
  3. Content
  4. About the Author
  5. Embed

Description

While there are many excellent books on the subject of well testing, few provide an introduction at the very basic level. The objective is to provide an easy to read introduction to classical well test theory. No previous knowledge in well testing is required. The reader is expected to understand basic concepts of flow in porous media. Well test interpretation depends on mathematical models. Some calculus skill is required.

Well testing is important in many disciplines: petroleum engineering, groundwater hydrology, geology and waste water disposal. The theory is the same, but different nomenclature and units are used. This book uses consistent units and petroleum engineering nomenclature. A consistent unit system leads to dimensionless constants in all equations. Equations in a consistent unit system are dimensionally transparent but inconvenient numerically. Hence, a myriad of practical unit systems have evolved. Conversion factors are easily available in the literature.

Preface

While there are many excellent and important books on the subject of well testing, few provide an introduction to the topic at the very basic level. The objective is to provide an easy to read introduction to classical well test theory. No previous knowledge in well testing is required. The reader is expected to understand basic concepts of flow in porous media. Well test interpretation depends on mathematical models. Some calculus skill is required. Hopefully, this book will give the reader a useful introduction to a fascinating subject and stimulate further studies.

Well testing is important in many disciplines: petroleum engineering, groundwater hydrology, geology and waste water disposal. The theory is the same, but different nomenclature and units are used. The present book use consistent units and petroleum engineering nomenclature. A consistent unit system leads to dimensionless constants in all equations. Equations in a consistent unit system are dimensional transparent but inconvenient numerically. Hence a myriad of practical unit systems have evolved. Many authors present equations first in consistent units and then convert them to the practical unit system of their choice. Conversion factors are easily available in the literature.

Content

  1. Preface
  2. Introduction
  3. Productivity of Wells
    1. Introductory remarks
    2. Flow equations for boundary dominated flow
    3. Productivity index, PI
    4. Time dependency of the pseudo-steady solution
    5. Flow efficiency
  4. Skin Factor
    1. Introductory remarks
    2. Steady state flow
    3. Skin factor
    4. Pseudo-steady flow
  5. Hawkins’ Formula for Skin
    1. Introductory remarks
    2. Hawkins’ model
  6. Equivalent Wellbore Radius
    1. Introductory remarks
    2. The equivalent wellbore radius
  7. Drawdown Test
    1. Introductory remarks
    2. Drawdown test
    3. Determination of permeability
    4. Determination of skin factor
  8. Reservoir Limit Test
    1. Introductory remarks
    2. Reservoir limit test
    3. Determination of pore volume, circular drainage area
  9. Interference Test – Type Curve Matching
    1. Introductory remarks
    2. Interference test
    3. The line source solution
    4. Type curve matching
  10. Pressure Buildup Test
    1. Introductory remarks
    2. Pressure buildup test
    3. Infinite-acting reservoir
    4. Determination of permeability
    5. Determination of the initial reservoir pressure
    6. Determination of the skin factor
    7. Bounded reservoir
    8. Determination of the average pressure
    9. Average reservoir pressure
    10. Horner time
  11. Pressure Derivative
    1. Introductory remarks
    2. Drawdown
    3. Buildup
    4. Derivation algorithm
  12. Wellbore Storage
    1. Introductory remarks
    2. Drawdown
    3. Buildup
  13. Principle of Superposition
    1. Introductory remarks
    2. Several wells in an infinite reservoir
    3. Method of images
    4. Superposition in time
  14. Appendix A: Core Analysis
    1. Introduction
    2. Well testing
    3. Average porosity obtained by core analysis
    4. Average permeability obtained by core analysis
    5. Arithmetic average
    6. Harmonic average
    7. Probability distribution function
    8. Geometric average
    9. Powerlaw average
    10. Commingled reservoir
  15. Appendix B: A Note on Unit Systems
    1. Introductory remarks
    2. Consistent SI Units
    3. American Field Units
    4. Conclusion

About the Author

Tom A. Jelmert is Professor of Petroleum Engineering with the Norwegian University of Science and Technology (NTNU), Trondheim. Until 1997 was also Adjunct Prof. of mathematics and physics at the Academy of The Royal Norwegian Air Force, Trondheim. He has been a research engineer with SINTEF, Trondheim.

Jelmert holds a BSc. in Electrical Engineering from Purdue University, Ind. He holds MS. and PhD in Petroleum Engineering from the Norwegian Institute of Technology (NTH),Trondheim. He has been a guest scientist with University of Tulsa, Tulsa, Ok., in the period 1989-90, Colorado School of Mines, Golden, Col., in the period 2000-2001, and with The University of Split, Croatia, three months in 2011. He served as a member of the editorial board of Journal of Petroleum Science and Technology during the period 1996-2002.

He has presented papers on: Well testing, Core Analysis, Stress-Sensitivity, Petroleum Production, and Ground Water Hydrology. He is interested in analytical and numerical models.

Embed

Size
Choose color
Implementation code. Copy into your own page
Embed Frame - Terms of Use

The embed frame is free to use for private persons, universities and schools. It is not allowed to be used by any company for commercial purposes unless it is for media coverage. You may not modify, build upon, or block any portion or functionality of the embed frame, including but not limited to links back to the bookboon.com website.

The Embed frame may not be used as part of a commercial business offering. The embed frame is intended for private people who want to share eBooks on their website or blog, professors or teaching professionals who want to make an eBook available directly on their page, and media, journalists or bloggers who wants to discuss a given eBook

If you are in doubt about whether you can implement the embed frame, you are welcome to contact Thomas Buus Madsen on tbm@bookboon.com and seek permission.