Geologic Analysis of Naturally Fractured Reservoirs (eBook)

Front Cover 1
Geologic Analysis of Naturally Fractured Reservoirs 4
Copyright Page 5
Contents 8
Acknowledgments 12
Foreword 14
Preface 18
Notation 20
Chapter 1. Evaluating Fractured Reservoirs: Introduction 22
Avoid Fracture Denial 22
The Evaluation Sequence 25
Basic Types of Evaluation 25
General Sequence of Study 28
Fracture System Origin 28
Fractured Properties Affecting Reservoir Performance 53
Fracture and Matrix Porosity Communication 103
Chapter 2. Reservoir Management 122
Classification of Fractured Reservoirs 122
Positive Reservoir Attributes 128
Potential Problems 130
Strategies of Fractured Reservoir Management 131
Thoughts on Risk Analysis in Fractured Reservoirs 144
Chapter 3. Detecting and Predicting Fracture Occurrence and Intensity 146
Detection 146
Prediction of Subsurface Fracture Spacing 156
Summary 171
Chapter 4. Analysis of Anisotropic Reservoirs 184
Stylolites 184
Development of Permeability Tensors for Anisotropic Reservoirs 206
Statistical Data in Reservoir Modeling 228
Stimulation in Fractured Reservoirs 238
Chapter 5. Analysis Procedures in Fractured Reservoirs 244
Screening Tools in Defining a Fractured Reservoir 244
Data Types and Constraints as a Function of When the Fractured Reservoir is Discovered 247
Core and Outcrop Analysis 250
Pressure and Production Analysis for Quantifying Fracture System Properties 272
Numerical Modeling in Geology 273
Appendix A: List of Documented Fractured Reservoirs 276
Appendix B: Procedures Checklist 298
Appendix C: Averaging Techniques 300
Glossary 302
Conversion Factors 306
References 308
Index 344