Darling Well Logging and Formation Evaluation

1. Auflage 2005
ISBN: 978-0-08-045795-6
Verlag: Elsevier Science & Techn.
Format: EPUB
Kopierschutz: 6 - ePub Watermark

E-Book, Englisch, 336 Seiten

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.
·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.

Autoren/Hrsg.

Darling, Toby

Inhaltsverzeichnis

1;Introduction;9
2;1. Basics;10
2.1;1.1 Terminology;10
2.2;1.2 Basic Log Types;12
2.3;1.3 Logging Contracts;18
2.4;1.4 Preparing a Logging Programme;20
2.5;1.5 Operational Decisions;23
2.6;1.6 Coring;25
2.7;1.7 Wellsite Mud Logging;30
2.8;1.8 Testing/Production Issues;33
3;2. Quicklook Log Interpretation;38
3.1;2.1 Basic Quality Control;38
3.2;2.2 Identifying the Reservoir;39
3.3;2.3 Identifying the Fluid Type and Contacts;41
3.4;2.4 Calculating the Porosity;43
3.5;2.5 Calculating Hydrocarbon Saturation;46
3.6;2.6 Presenting the Results;49
3.7;2.7 Pressure/Sampling;51
3.8;2.8 Permeability Determination;54
4;3. Full Interpretation;58
4.1;3.1 Net Sand Definition;58
4.2;3.2 Porosity Calculation;60
4.3;3.3 Archie Saturation;62
4.4;3.4 Permeability;63
5;4. Saturation/Height Analysis;68
5.1;4.1 Core Capillary Pressure Analysis;69
5.2;4.2 Log-Derived Functions;73
6;5. Advanced Log Interpretation Techniques;76
6.1;5.1 Shaly Sand Analysis;76
6.2;5.2 Carbonates;82
6.3;5.3 Multi-Mineral/Statistical Models;83
6.4;5.4 NMR Logging;85
6.5;5.5 Fuzzy Logic;94
6.6;5.6 Thin Beds;96
6.7;5.7 Thermal Decay Neutron Interpretation;102
6.8;5.8 Error Analyses;105
6.9;5.9 Borehole Corrections;110
7;6. Integration with Seismic;112
7.1;6.1 Synthetic Seismograms;112
7.2;6.2 Fluid Replacement Modelling;117
7.3;6.3 Acoustic/Elastic Impedance Modelling;119
8;7. Rock Mechanics Issues;124
9;8. Value Of Information;128
10;9. Equity Determinations;134
10.1;9.1 Basis for Equity Determination;135
10.2;9.2 Procedures/Timing for Equity Determination;136
10.3;9.3 The Role of the Petrophysicist;138
11;10. Production Geology Issues;146
11.1;10.1 Understanding Geological Maps;149
11.2;10.2 Basic Geological Concepts;156
12;11. Reservoir Engineering Issues;164
12.1;11.1 Behavior of Gases;164
12.2;11.2 Behavior of Oil/Wet Gas Reservoirs;168
12.3;11.3 Material Balance;171
12.4;11.4 Darcy’s Law;172
12.5;11.5 Well Testing;175
13;12. Homing-in Techniques;180
13.1;12.1 Magnetostatic Homing-in;180
13.2;12.2 Electromagnetic Homing-in;194
14;13. Well Deviation, Surveying, and Geosteering;202
14.1;13.1 Well Deviation;202
14.2;13.2 Surveying;204
14.3;13.3 Geosteering;206
14.4;13.4 Horizontal Wells Drilled above a Contact;212
14.5;13.5 Estimating the Productivity Index for Long Horizontal Wells;214
15;Appendix 1: Test Well 1 Data Sheet;216
16;Appendix 2: Additional Data for Full Evaluation;224
17;Appendix 3: Solutions to Exercises;227
18;Appendix 4: Additional Mathematics Theory;260
19;Appendix 5: Abbreviations and Acronyms;273
20;Appendix 6: Useful Conversion Units and Constants;277
21;Appendix 7: Contractor Tool Mnemonics;280
22;Bibliography;318
23;About the Author;322
24;Acknowledgments;323
25;Index;324