Well Logging and Formation Evaluation

Well Logging and Formation Evaluation

1st Edition - February 22, 2005

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  • Author: Toby Darling
  • eBook ISBN: 9780080457956
  • Hardcover ISBN: 9780750678834

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Description

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.

Readership

Petroleum geologists, geophysicists, reservoir engineers and drilling engineers.

Table of Contents

  • Introduction

    1. Basics
    1.1 Terminology
    1.2 Basic Log Types
    1.3 Logging Contracts
    1.4 Preparing a Logging Programme
    1.5 Operational Decisions
    1.6 Coring
    1.7 Wellsite Mud Logging
    1.8 Testing/Production Issues

    2. Quicklook Log Interpretation
    2.1 Basic Quality Control
    2.2 Identifying the Reservoir
    2.3 Identifying the Fluid Type and Contracts
    2.4 Calculating the Porosity
    2.5 Calculating Hydrocarbon Saturation
    2.6 Presenting the Results
    2.7 Pressure/Sampling
    2.8 Permeability Determination

    3. Full Interpretation
    3.1 Net Sand Definition
    3.2 Porosity Calculation
    3.3 Archie Saturation
    3.4 Permeability

    4. Saturation/Height Analysis
    4.1 Core Capillary Pressure Analysis
    4.2 Log-Derived Functions

    5. Advanced Log Interpretation Techniques
    5.1 Shaly Sand Analysis
    5.2 Carbonates
    5.3 Multi-Mineral/Statistical Models
    5.4 NMR Logging
    5.5 Fuzzy Logic
    5.6 Thin Beds
    5.7 Thermal Decay Neutron Interpretation
    5.8 Error Analyses
    5.9 Borehole Corrections

    6. Integration with Seismic
    6.1 Synthetic Seismograms
    6.2 Fluid Replacement Modelling
    6.3 Acoustic/Elastic Impedance Modelling

    7. Rock Mechanics Issues

    8. Value of Information

    9. Equity Determinations
    9.1 Basis for Equity Determination
    9.2 Procedures/Timing for Equity Determination
    9.3 The Role of the Petrophysicist

    10. Production Geology Issues
    10.1 Understanding Geological Maps
    10.2 Basic Geological Concepts

    11. Reservoir Engineering Issues
    11.1 Behavior of Gases
    11.2 Behavior of Oil/.Wet Gas Reservoirs
    11.3 Material Balance
    11.4 Darcy’s Law
    11.5 Well Testing

    12. Homing-in Techniques
    12.1 Magnetostatic Homing-In
    12.2 Electromagnetic Homing-In

    13. Well Deviation, Surveying, and Geosteering
    13.1 Well Deviation
    13.2 Surveying
    13.3 Geosteering
    13.4 Horizontal Wells Drilled about a Contact
    13.5 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

Product details

  • No. of pages: 336
  • Language: English
  • Copyright: © Gulf Professional Publishing 2005
  • Published: February 22, 2005
  • Imprint: Gulf Professional Publishing
  • eBook ISBN: 9780080457956
  • Hardcover ISBN: 9780750678834

About the Author

Toby Darling

Affiliations and Expertise

Toby Darling Limited

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