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Well Logging and Formation Evaluation - 1st Edition - ISBN: 9780750678834, 9780080457956

Well Logging and Formation Evaluation

1st Edition

Author: Toby Darling
Hardcover ISBN: 9780750678834
Paperback ISBN: 9781493303144
eBook ISBN: 9780080457956
Imprint: Gulf Professional Publishing
Published Date: 23rd February 2005
Page Count: 336
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This hand guide in the Gulf Drilling Guides series offers practical techniques that are valuable to petrophysicists and engineers in their day-to-day jobs. Based on the author’s many years of experience working in oil companies around the world, this guide is a comprehensive collection of techniques and rules of thumb that work.

The primary functions of the drilling or petroleum engineer are to ensure that the right operational decisions are made during the course of drilling and testing a well, from data gathering, completion and testing, and thereafter to provide the necessary parameters to enable an accurate static and dynamic model of the reservoir to be constructed. This guide supplies these, and many other, answers to their everyday problems.

There are chapters on NMR logging, core analysis, sampling, and interpretation of the data to give the engineer a full picture of the formation. There is no other single guide like this, covering all aspects of well logging and formation evaluation, completely updated with the latest techniques and applications.

Key Features

· A valuable reference dedicated solely to well logging and formation evaluation. · Comprehensive coverage of the latest technologies and practices, including, troubleshooting for stuck pipe, operational decisions, and logging contracts. · Packed with money-saving and time saving strategies for the engineer working in the field.


Petroleum geologists, geophysicists, reservoir engineers and drilling engineers.

Table of Contents


  1. Basics

  2. 1 Terminology

  3. 2 Basic Log Types

  4. 3 Logging Contracts

  5. 4 Preparing a Logging Programme

  6. 5 Operational Decisions

  7. 6 Coring

  8. 7 Wellsite Mud Logging

  9. 8 Testing/Production Issues

  10. Quicklook Log Interpretation

  11. 1 Basic Quality Control

  12. 2 Identifying the Reservoir

  13. 3 Identifying the Fluid Type and Contracts

  14. 4 Calculating the Porosity

  15. 5 Calculating Hydrocarbon Saturation

  16. 6 Presenting the Results

  17. 7 Pressure/Sampling

  18. 8 Permeability Determination

  19. Full Interpretation

  20. 1 Net Sand Definition

  21. 2 Porosity Calculation

  22. 3 Archie Saturation

  23. 4 Permeability

  24. Saturation/Height Analysis

  25. 1 Core Capillary Pressure Analysis

  26. 2 Log-Derived Functions

  27. Advanced Log Interpretation Techniques

  28. 1 Shaly Sand Analysis

  29. 2 Carbonates

  30. 3 Multi-Mineral/Statistical Models

  31. 4 NMR Logging

  32. 5 Fuzzy Logic

  33. 6 Thin Beds

  34. 7 Thermal Decay Neutron Interpretation

  35. 8 Error Analyses

  36. 9 Borehole Corrections

  37. Integration with Seismic

  38. 1 Synthetic Seismograms

  39. 2 Fluid Replacement Modelling

  40. 3 Acoustic/Elastic Impedance Modelling

  41. Rock Mechanics Issues

  42. Value of Information

  43. Equity Determinations 9.1 Basis for Equity Determination

    9.2 Procedures/Timing for Equity Determination 9.3 The Role of the Petrophysicist
  44. Production Geology Issues

  45. 1 Understanding Geological Maps

  46. 2 Basic Geological Concepts

  47. Reservoir Engineering Issues

  48. 1 Behavior of Gases

  49. 2 Behavior of Oil/.Wet Gas Reservoirs

  50. 3 Material Balance

  51. 4 Darcy’s Law

  52. 5 Well Testing

  53. Homing-in Techniques

  54. 1 Magnetostatic Homing-In

  55. 2 Electromagnetic Homing-In

  56. Well Deviation, Surveying, and Geosteering

  57. 1 Well Deviation

  58. 2 Surveying

  59. 3 Geosteering

  60. 4 Horizontal Wells Drilled about a Contact

  61. 5 Estimating the Productivity Index for Long Horizontal Wells

Appendix 1: Test Well 1 Data Sheet Appendix 2: Additional Data for Full Evaluation Appendix 3: Solutions to Exercies Appendix 4: Additional Mathematics Theory Appendix 5: Abbreviations and Acronyms Appendix 6: Useful Conversion Units and Constants Appendix 7: Contractor Tool Mnemonics Bibliography About the Author Acknowledgments Index


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© Gulf Professional Publishing 2005
23rd February 2005
Gulf Professional Publishing
Hardcover ISBN:
Paperback ISBN:
eBook ISBN:

About the Author

Toby Darling

Affiliations and Expertise

Toby Darling Limited


"A concise guide to both well logging as well as other important topics in evaluating formations … I recommend the book as an addition to most any petrophysicist's working library." - William D. Moore, Hereford, Arizona in the AAPG Bulletin, December 2005

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