Geological analysis of naturally fractured reservoirs

Geologists, engineers, and petrophysicists concerned with hydrocarbon production from naturally fractured reservoirs will find this book a valuable tool for obtaining pertinent rock data to evaluate reserves and optimize well location and performance. Nelson emphasizes geological, petrophysical, and rock mechanics to complement other studies of the subject that use well logging and classical engineering approaches. This well organized, updated edition contains a wealth of field and laboratory data, case histories, and practical advice. A great how-to-guide for anyone working with fractured or highly anisotropic reservoirs Provides real-life illustrations through case histories and field and laboratory data 1 Evaluating Fractured Reservoirs: Introduction 21 AVOID FRACTURE DENIAL 21 THE EVALUATION SEQUENCE 24 BASIC TYPES OF EVALUATION 24 GENERAL SEQUENCE OF STUDY 27 FRACTURE SYSTEM ORIGIN 27 FRACTURE PROPERTIES AFFECTING RESERVOIR PERFORMANCE 52 FRACTURE AND MATRIX POROSITY COMMUNICATION 102 2 Reservoir Management 121 CLASSIFICATION OF FRACTURED RESERVOIRS 121 POSITIVE RESERVOIR ATTRIBUTES 127 POTENTIAL PROBLEMS 129 STRATEGIES OF FRACTURED RESERVOIR MANAGEMENT 130 THOUGHTS ON RISK ANALYSIS IN FRACTURED RESERVOIRS 143 3 Detecting and Predicting Fracture Occurrence and Intensity 145 DETECTION 145 PREDICTION OF SUBSURFACE FRACTURE SPACING 155 SUMMARY 170 4 Analysis of Anisotropic Reservoirs 183 STYLOLITES 183 DEVELOPMENT OF PERMEABILITY TENSORS FOR ANISOTROPIC RESERVOIRS 205 STATISTICAL DATA IN RESERVOIR MODELING 227 STIMULATION IN FRACTURED RESERVOIRS 237 5 Analysis Procedures in Fractured Reservoirs 243 SCREENING TOOLS IN DEFINING A FRACTURED RESERVOIR 243 DATA TYPES AND CONSTRAINTS AS A FUNCTION OF WHEN THE FRACTURED RESERVOIR IS DISCOVERED 246 CORE AND OUTCROP ANALYSIS 249 PRESSURE AND PRODUCTION ANALYSIS FOR QUANTIFYING FRACTURE SYSTEM PROPERTIES 271 NUMERICAL MODELING IN GEOLOGY 272 List of Documented Fractured Reservoirs 275 Procedures Checklist 297 Averaging Techniques 299 AFTER ROEBUCK (1979) 299 Glossary 301 References 305 Index 341 Referex AVOID FRACTURE DENIAL......Page 21 BASIC TYPES OF EVALUATION......Page 24 FRACTURE SYSTEM ORIGIN......Page 27 FRACTURE PROPERTIES AFFECTING RESERVOIR PERFORMANCE......Page 52 FRACTURE AND MATRIX POROSITY COMMUNICATION......Page 102 CLASSIFICATION OF FRACTURED RESERVOIRS......Page 121 POSITIVE RESERVOIR ATTRIBUTES......Page 127 POTENTIAL PROBLEMS......Page 129 STRATEGIES OF FRACTURED RESERVOIR MANAGEMENT......Page 130 THOUGHTS ON RISK ANALYSIS IN FRACTURED RESERVOIRS......Page 143 DETECTION......Page 145 PREDICTION OF SUBSURFACE FRACTURE SPACING......Page 155 SUMMARY......Page 170 STYLOLITES......Page 183 DEVELOPMENT OF PERMEABILITY TENSORS FOR ANISOTROPIC RESERVOIRS......Page 205 STATISTICAL DATA IN RESERVOIR MODELING......Page 227 STIMULATION IN FRACTURED RESERVOIRS......Page 237 SCREENING TOOLS IN DEFINING A FRACTURED RESERVOIR......Page 243 DATA TYPES AND CONSTRAINTS AS A FUNCTION OF WHEN THE FRACTURED RESERVOIR IS DISCOVERED......Page 246 CORE AND OUTCROP ANALYSIS......Page 249 PRESSURE AND PRODUCTION ANALYSIS FOR QUANTIFYING FRACTURE SYSTEM PROPERTIES......Page 271 NUMERICAL MODELING IN GEOLOGY......Page 272 List of Documented Fractured Reservoirs......Page 275 Procedures Checklist......Page 297 AFTER ROEBUCK (1979)......Page 299 Glossary......Page 301 References......Page 305 Index......Page 341 Geologists, engineers, and petrophysicists concerned with hydrocarbon production from naturally fractured reservoirs will find this book a valuable tool for obtaining pertinent rock data to evaluate reserves and optimize well location and performance. Nelson emphasizes geological, petrophysical, and rock mechanics to complement other studies of the subject that use well logging and classical engineering approaches.

This well organized, updated edition contains a wealth of field and laboratory data, case histories, and practical advice.




A great how-to-guide for anyone working with fractured or highly anisotropic reservoirs
Provides real-life illustrations through case histories and field and laboratory data