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Hydrates Bearing Sediments Stability Conditions Overlying Sediment - PowerPoint PPT Presentation

Hydrates Bearing Sediments Stability Conditions Overlying Sediment Layer (Geothermal gradient) Hydrate Stability Zone Intermediate Sediment Layer Free Gas Zone Geophysical Survey How Were Hydrates Discovered? Mode of Occurrence


  1. Hydrates Bearing Sediments • Stability Conditions Overlying Sediment Layer (Geothermal gradient) • Hydrate Stability Zone Intermediate Sediment Layer • Free Gas Zone

  2. Geophysical Survey

  3. How Were Hydrates Discovered?

  4. Mode of Occurrence

  5. How Were Hydrates Discovered?

  6. Hydrate Formation and Growth Mechanism A. Pore filling – dissolved gas method B. Load bearing – partial water saturation C. Cementation – ice seeding, hydrate premixing D. Grain Coating – partial water saturation

  7. OVERVIEW: Gas Production Methods Hydrates Stable Hydrates Unstable

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