Hydrocarbon Seal Quantification (eBook)

Cover 1
Contents 12
Preface 6
List of Contributors 8
Part I: Cap-Rock Integrity 14
Chapter 1. Shale Gouge Ratio „ calibration by geohistory 14
Chapter 2. Rock stress in sedimentary basins „ implications for trap integrity 30
Chapter 3. The role of diagenesis in the formation of fluid overpressures in clastic rocks 50
Chapter 4. Prediction of sealing capacity by the equivalent grain size method 64
Chapter 5. Effective permeability of hydrofractured sedimentary rocks 74
Chapter 6. Geomechanical simulations of top seal integrity 88
Chapter 7. Top seal assessment in exhumed basin settings „ some insights from Atlantic Margin and borderland basins 102
Part II: Fault-Seal Potential 122
Chapter 8. Empirical estimation of fault rock properties 122
Chapter 9. A method for including the capillary properties of faults in hydrocarbon migration models 140
Chapter 10. Quantitative fault seal assessment in hydrocarbon-compartmentalised structures using fluid pressure data 154
Chapter 11. Havana „ a fault modeling tool 170
Chapter 12. Reservoir compartmentalisation by water-saturated faults „ Is evaluation possible with today's tools? 186
Part III: Case Studies 200
Chapter 13. Geological implications of a large pressure difference across a small fault in the Viking Graben 200
Chapter 14. Fault reactivation, leakage potential, and hydrocarbon column heights in the northern North Sea 216
Chapter 15. Leakage from overpressured hydrocarbon reservoirs at Haltenbanken and in the northern North Sea 234
Chapter 16. Evaluation of caprock integrity in the western (high-pressured) Haltenbanken area „ a case history based on analyses of seismic signatures in overburden rocks 246
Chapter 17. Fault seal analysis in unconsolidated sediments: a field study from Kentucky, USA 256
References index 268
Subject index 274