Shallow fluid systems

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Table of contents

1. Introduction to biogenic methane
1.1 The global methane budget and the organic carbon cycle
1.2 Biogenic methane processes
1.2.1 Shallow fluid systems
1.2.2 Methanogenesis
1.3 Evidence of fluid systems at the seafloor
1.3.1 Pockmarks and gas seepages
1.3.2 Methane-Derived Authigenic Carbonate (MDAC)
1.3.3 Gas Hydrates
1.4 PhD thesis objectives as part of the PAMELA Research Project
1.4.1 The Mozambique Channel natural laboratory
1.4.2 The Offshore Aquitaine natural laboratory
1.4.3 PhD thesis outline
2. Natural sources of microbial gas
2.1 Biogenic source rock potential
2.2 Organic matter production
2.3 Organic matter composition
2.4 Preservation and burial of organic matter in marine settings
3. A case study from the Mozambique Basin (manuscript in submission process)
4. Modelling microbial gas processes at the basin scale
4.1 The OM reactivity model
4.1.1 The discrete model
4.1.2 The continuum model
4.1.3 Conceptual approach for biogenic CH4 processes at the basin scale
4.2 The TemisFlow basin model
4.3 Modelling biogenic gas migration
4.3.1 Modelling adsorption of biogenic gas
4.3.2 Modelling dissolution of methane in pore water
4.3.3 Modelling migration as a free gas phase
4.4 Trapping and sinks of biogenic gas
4.5 Critical parameters for biogenic gas generation and migration
5. A case study from the Offshore Aquitaine (Paper in Marine and Petroleum Geology, 2021)
6. Issues with the analytical procedure to characterize recent terrestrial OM
7. Conclusions
8. Future research on biogenic gas generation and migration
8.1 Hydrate stability zones as paleo-gas migration indicators
8.2 Additional research questions
9. References
10. Figures Table
11. Tables Table
12. Appendices
12.1 Publications
12.2 International Conferences
12.3 Internal PAMELA seminars
12.4 PhD thesis pitch
12.5 International Training and School
13. Summary
14. Résumé