Foreword ....................................................... ix
Preface to the Second Edition (Chinese Version) ................ xi
Preface to the First Edition (Chinese Version) ............... xiii
Preface to This English Version and Acknowledgment ............. xv
About the Author ............................................. xvii
1 Introduction ................................................. 1
1 The Purpose of this Book .................................. 2
2 Role of Well Test in Gas Field Exploration and
Development ............................................... 5
3 Keys of Well Test Analysis ............................... 16
4 Characteristics of Modern Well Test Technology ........... 26
2 Basic Concepts and Gas Flow Equations ....................... 35
1 Basic Concepts ........................................... 36
2 Gas Flow Equations ....................................... 72
3 Summary .................................................. 91
3 Gas Well Deliverability Test and Field Examples ............. 93
1 Gas Well Deliverability and Absolute Open Flow Potential
(AOFP) ................................................... 96
2 Three Classical Deliverability Test Methods ............. 101
3 Treatment of Deliverability Test Data ................... 107
4 Parameter Factors Influencing Gas Well Deliverability ... 120
5 Short-Term Production Test Combined with Modified
Isochronal Test in Gas Wells ............................ 124
6 Stable Point Laminar-lnertial-Turbulent (LIT)
Deliverability Equation ................................. 131
7 Production Prediction in Development Program Designing
of Gas Fields ........................................... 169
8 Discussion on Several Key Problems in Deliverability
Test .................................................... 181
9 Summary ................................................. 207
4 Analyzing Gas Reservoir Characteristics with Pressure
Gradient Method ............................................ 209
1 Pressure Gradient Analysis of Exploration Wells in the
Early Stage and Some Field Examples ..................... 210
2 Calculation of Gas Density and Pressure Gradient Under
Formation Conditions .................................... 214
3 Pressure Gradient Analysis During Development of a Gas
Field ................................................... 216
4 Some Key Points in Pressure Gradient Analysis ........... 217
5 Acquisition of Dynamic Formation Pressure after a Gas
Field has been Put into Development ..................... 219
5 Gas Reservoir Dynamic Model and Well Test .................. 225
1 Introduction ............................................ 227
2 Pressure Cartesian Plot—Pressure History Plot ........... 256
3 Pressure Semilog Plot ................................... 265
4 Log—log Plot and Model Graph of Pressure and Its
Derivative .............................................. 274
5 Characteristic Diagram and Field Examples of Transient
Well Test in Different Types of Reservoirs .............. 302
6 Summary ................................................. 409
6 Interference Test and Pulse Test ........................... 411
1 Application and Development History of Multiple - Well
Test .................................................... 413
2 Principle of Interference Test and Pulse Test ........... 424
3 Field Examples of Multiple-Well Test in Oil and Gas
Field Research .......................................... 452
4 Summary ................................................. 494
7 Coalbed Methane Well Test Analysis ......................... 497
1 Coalbed Methane Well Test ............................... 498
2 Flow Mechanism and Well Testing Models in a Coalbed ..... 502
3 Injection/Falloff Well Test Method for Coalbed Methane
Wells ................................................... 511
4 Analysis and Interpretation of Injection/Falloff Test
Data of Coalbed Methane Wells............................ 520
5 Summary ................................................. 524
8 Production Test in Gas Field and Dynamic Description of
Gas Reservoir .............................................. 527
1 Production Test in Special Lithologic Gas Fields in
China ................................................... 530
2 Dynamic Gas Reservoir Description in Development
Preparatory Stage of JB Gas Field ....................... 540
3 Short-term Production Test and Evaluation of Gas
Reservoir Characteristics in KL-2 Gas Field ............. 548
4 Tracing Study on Gas Reservoir Dynamic Description of
SLG Gas Field ........................................... 594
5 Dynamic Reservoir Description of YL Gas Field ........... 613
6 Study on Dynamic Description of Gas Reservoir in DF Gas
Field ................................................... 627
7 Dynamic Performance Study of Extremely Complicated
Lithologic Gas Field .................................... 637
8 Summary ................................................. 646
9 Well Test Design ........................................... 649
1 Procedure of Well Test Design and Data Acquisition ...... 650
2 Key Points of Simulation Design of Transient Well Test
for Different Geologic Objectives ....................... 656
Appendix 1 Nomenclature (with China Statutory Units CSU) ...... 663
Appendix 2 Commonly used units in different unit systems ...... 671
Appendix 3 Unit conversion from China Statutory Unit System
(CSU) to other unit systems ........................ 673
Appendix 4 Formulae commonly used in a well test under the
China Statutory Unit System ........................ 675
Appendix 5 Conversion method of coefficients in a formula
from one unit system to another one ................ 687
References .................................................... 689
Author Index .................................................. 693
Subject Index ................................................. 695
Color Plates .................................................. 705
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