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Deepwater Reservoirs-Exploration & Development

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CHAPTER 1- EXECUTIVE SUMMARY

1.1 Introduction

1.2 Exploration Techniques

1.3 Petroleum Systems

1.4 Traps

1.5 Depositional Characteristics

1.6 Reservoir Properties

1.7 Production Performance and Ultimate Recovery

1.8 Exploration and Production Synthesis: A Passive-Margin Perspective

CHAPTER 2- OVERVIEW

2.1 Introduction

2.2 General Field Characteristics

2.3 Exploration History and Techniques

2.3.1 Introduction
2.3.2 Exploration Techniques and Hydrocarbon Indicators
2.3.3 Exploration Concepts and Scenarios

2.4 Basin Development, Petroleum Systems and Traps

2.4.1 Classification of Deep-water Basins
2.4.2 Source rocks and Maturation Trends
2.4.3 Traps

2.5 Depositional Process Systems

2.5.1 Submarine-fan Models
2.5.2 Sediment-supply Systems

2.6 Reservoir Characterization

2.6.1 Architectural Elements
2.6.2 Reservoir Types
2.6.3 Depositional Processes and Lithofacies

2.7 Reservoir Properties

2.8 Development and Production

2.8.1 Lead-in Periods and Production Systems
2.8.2 Controls on Production Performance and Recovery Efficiency

CHAPTER 3- DEEP-WATER RESERVOIRS IN PASSIVE-MARGIN BASINS:
EXPLORATION AND RESERVOIR CHARACTERIZATION

3.1 Introduction

3.2 Exploration History and Techniques

3.3 Basin development, Petroleum Systems and Traps

3.3.1 Basin Configuration
3.3.2 Basin Evolution
3.3.3 Source Rocks and Maturation Trends
3.3.4 Traps

3.4 Depositional Process Systems

3.4.1 Sediment Supply Systems
3.4.2 Slope Architecture

3.5 Reservoir Characterization

3.5.1 Introduction
3.5.2 Canyon-fill Reservoirs
3.5.3 Channel-dominated Reservoirs
3.5.4 Leveed-channel Reservoirs
3.5.5 Sheet-dominated Reservoirs
3.5.6 Debrite Reservoirs
3.5.7 Bottom-current Reworked Reservoirs

3.6 Reservoir Properties

3.7 Summary and Conclusion

CHAPTER 4- DEEP-WATER RESERVOIRS IN TRANSFORM-MARGIN BASINS: EXPLORATION AND RESERVOIR CHARACTERIZATION

4.1 Introduction

4.2 Exploration History and Techniques

4.3 Basin Development, Petroleum Systems and Traps

4.3.1 Basin Configuration and Evolution
4.3.2 Source Rocks and Maturation Trends
4.3.3 Traps

4.4 Depositional Process Systems

4.4.1 Shelf-fed Systems
4.4.2 Delta-fed Systems

4.5 Reservoir Characterization

4.5.1 Introduction
4.5.2 Channel-dominated Reservoirs
4.5.3 Leveed-channel Reservoirs
4.5.4 Sheet-dominated Reservoirs

4.6 Reservoir Properties

4.7 Summary and Conclusions

CHAPTER 5- DEEP-WATER RESERVOIRS IN INTRACONTINENTAL BASINS:
EXPLORATION AND RESERVOIR CHARACTERIZATION

5.1 Introduction

5.2 Exploration History and Techniques

5.3 Basin Development, Petroleum Systems and Traps

5.3.1 Rift Basins
5.3.2 Foreland Basins
5.3.3 Source Rocks and Maturation Trends
5.3.4 Traps

5.4 Depositional systems

5.4.1 Hinterland-fed Systems
5.4.2 Shelf-fed Systems
5.4.3 Delta-fed Systems

5.5 Reservoir Characterization

5.5.1 Introduction
5.5.2 Channel-dominated Reservoirs
5.5.3 Sheet-dominated Reservoirs
5.5.4 Conglomeratic Slope-apron Reservoirs

5.6 Reservoir Properties

5.7 Summary and Conclusions

CHAPTER 6- SEISMIC CHARACTERISTICS OF DEEP-WATER RESERVOIRS

6.1 Introduction

6.2 Acoustic Properties of Rocks and Fluids

6.2.1 Acoustic Properties of Sands and Shales
6.2.2 Acoustic Properties of Brine and Hydrocarbons Under Reservoir Conditions

6.3 P-wave Seismology and AVO Interpretation

6.3.1 P-wave Reflection Coefficient
6.3.2 Characterization and AVO Behavior
6.3.3 Summary of Rock Properties
6.3.4 Seismic Tuning Effects

6.4 Synthetic Seismogram Methodology

6.4.1 Well-log Corrections and Assumptions
6.4.2 Synthetic Seismogram Generation

6.5 Conclusions

APPENDIX: SYNTHETIC SEISMIC EXAMPLES OF DEEP-WATER RESERVOIRS

CHAPTER 7- DEVELOPMENT AND PRODUCTION OF DEEP-WATER CONVENTIONAL-OIL FIELDS

7.1 Introduction

7.1.1 Field Distribution
7.1.2 Lead-in Period to First Production
7.1.3 Deep-Water Production Systems
7.1.4 General Field Characteristics

7.2 Production Mechanisms and Development Strategies

7.2.1 Natural Drive Mechanisms
7.2.2 Secondary Recovery Techniques
7.2.3 Well Patterns, Completions & Performance

7.3 Controls on Recovery Efficiency

7.4 Summary

CHAPTER 8- DEVELOPMENT AND PRODUCTION OF DEEP-WATER HEAVY-OIL RESERVOIRS

8.1 Introduction

8.1.1 Field Distribution
8.1.2 Lead-in Period to First Production
8.1.3 Deep-water Production Systems
8.1.4 General Field Characteristics

8.2 Production Mechanisms and Development Strategies

8.2.1 Natural Drive Mechanisms
8.2.2 Secondary Recovery Techniques
8.2.3 Well Patterns, Completions and Performance

8.3 Controls on Recovery Efficiency

8.4 Summary

CHAPTER 9- DEVELOPMENT AND PRODUCTION OF DEEP-WATER GAS AND GAS-CONDENSATE RESERVOIRS

9.1 Introduction

9.1.1 Fluid Types and Water Depths
9.1.2 Lead-in Period to First Production
9.1.3 Deep-water Production Systems
9.1.4 General Field Characteristics

9.2 Production Mechanisms and Development Strategies

9.2.1 Natural Drive Mechanisms
9.2.2 Secondary Recovery Techniques
9.2.3 Well Spacings, Completions and Performance

9.3 Controls on Recovery Efficiency

9.4 Summary

REFERENCES