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Chapter 20 Underground hydrogen storage lessons for natural hydrogen systems

  • Quan Xie , Adnan Aftab , Mohammad Sarmadivaleh , Lingping Zeng and Alireza Safari
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Natural Hydrogen Systems
This chapter is in the book Natural Hydrogen Systems

Abstract

Natural hydrogen presents significant potential to transform the global energy system and accelerate the transition to a low-carbon future. Despite this promise, research on developing natural hydrogen systems remains limited. This study builds on the extensive work on underground hydrogen storage (UHS) in depleted gas reservoirs to leverage existing knowledge and expertise for advancing natural hydrogen systems.

Both abiotic and biotic geochemical reactions, which occur during UHS in depleted gas reservoirs, are also relevant to natural hydrogen systems. These reactions cause hydrogen conversion and contamination over geological timescales, leading to variations in hydrogen concentrations across hydrogen-detected wells in diverse geological settings, including orebodies, volcanic gases, hydrothermal systems, and oil and gas wells. These fluctuations in hydrogen composition underscore the need for quantitative research to establish the hydrogen-based equation of state. While the reactions in natural hydrogen systems differ from those in natural gas reservoirs, the underlying physics and governing equations for multicomponent flow remain consistent. Thus, modeling codes tested for UHS may be adapted to manage and predict the behavior of natural hydrogen reservoirs.

Abstract

Natural hydrogen presents significant potential to transform the global energy system and accelerate the transition to a low-carbon future. Despite this promise, research on developing natural hydrogen systems remains limited. This study builds on the extensive work on underground hydrogen storage (UHS) in depleted gas reservoirs to leverage existing knowledge and expertise for advancing natural hydrogen systems.

Both abiotic and biotic geochemical reactions, which occur during UHS in depleted gas reservoirs, are also relevant to natural hydrogen systems. These reactions cause hydrogen conversion and contamination over geological timescales, leading to variations in hydrogen concentrations across hydrogen-detected wells in diverse geological settings, including orebodies, volcanic gases, hydrothermal systems, and oil and gas wells. These fluctuations in hydrogen composition underscore the need for quantitative research to establish the hydrogen-based equation of state. While the reactions in natural hydrogen systems differ from those in natural gas reservoirs, the underlying physics and governing equations for multicomponent flow remain consistent. Thus, modeling codes tested for UHS may be adapted to manage and predict the behavior of natural hydrogen reservoirs.

Chapters in this book

  1. Frontmatter I
  2. Preface V
  3. Contents VII
  4. Editorial note XI
  5. Contributing authors XIII
  6. Part I: Geological foundations of natural hydrogen
  7. Chapter 1 Evaluating natural hydrogen systems through the lens of petroleum exploration 1
  8. Chapter 2 Subsurface natural H2 systems: some lessons from drilling results 47
  9. Chapter 3 Natural hydrogen exploration: some similarities and differences with oil and gas exploration 75
  10. Chapter 4 Geological and geochemical pathways of onshore natural hydrogen generation 105
  11. Part II: Natural hydrogen generation mechanisms
  12. Chapter 5 Shallow peridotites at magma-poor rifted margins: occurrences, serpentinization, and H2 generation 131
  13. Chapter 6 Exploring natural hydrogen in the oldest nuclei of continents: why do cratons matter? 163
  14. Chapter 7 A possible origin of organic natural hydrogen 201
  15. Chapter 8 Natural hydrogen and the primordially hydridic earth concept 239
  16. Part III: Hydrogen exploration and detection techniques
  17. Chapter 9 Rock physics for quantitative geophysical interpretation of natural hydrogen resources 267
  18. Chapter 10 The potential geophysical responses of trapped natural hydrogen gas 297
  19. Chapter 11 The development of an airborne, stand-off detection instrument for hydrogen gas 325
  20. Chapter 12 Surface gas geochemical exploration for natural hydrogen: uncertainties and holistic interpretation 347
  21. Chapter 13 Natural hydrogen favorability maps (NHFMs): a new concept for natural hydrogen exploration in different geological contexts 367
  22. Chapter 14 Numerical simulation of hydrogen phase equilibrium and migration at basin scale 385
  23. Part IV: Global case studies and regional insights
  24. Chapter 15 Natural hydrogen exploration in Brazil: from theory to fieldwork case studies 417
  25. Chapter 16 Natural hydrogen in China: geological insights and exploration prospects 447
  26. Chapter 17 Potential occurrence and reservoirs of natural hydrogen based on the geological and tectonic setting of the Korean Peninsula 471
  27. Chapter 18 Natural hydrogen in Japan: general generation mechanisms, current work, and perspectives 491
  28. Chapter 19 Various elements of a potential hydrogen system in Saudi Arabia 513
  29. Part V: Hydrogen storage, transportation, and environmental and technological challenges
  30. Chapter 20 Underground hydrogen storage lessons for natural hydrogen systems 537
  31. Chapter 21 Assessment of hydrogen storage in salt caverns in Oman 563
  32. Chapter 22 Advancements and challenges in the transportation of natural hydrogen 581
  33. Chapter 23 Environmental impacts of hydrogen production and usage 607
  34. Chapter 24 Drilling, construction, and completion of natural hydrogen exploration and production wells: emphasizing long-term well integrity 645
  35. Chapter 25 Effect of salt on rock wettability and gas interactions in natural hydrogen reservoirs 681
  36. Index 699
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