Permeability Anisotropy of Hydrate-Bearing Sediment during Consolidation Process: Insights from CT Scanning and Pore Network Modeling

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(7), P. 5900 - 5913

Published: March 26, 2024

During the initial phase of depressurization exploitation process natural gas hydrate, reduction pore pressure will cause effective stress concentration and consolidation deformation in hydrate-bearing sediment (HBS), while occurrence water-channeling phenomenon trigger rise swelling locally reservoir. Evaluating dynamic evolution HBS permeability is crucial for reservoir capacity. In this research, with X-ray CT triaxial experiments network model, change characteristics compression processes a saturation 0.29 were investigated. It found that there progressive decline absolute as increases, capillary (Pc) gradually anisotropy first rises then diminishes; relative (krg) water (krw) decreases increase during process. process, do not recover, whereas unconsolidated HBS, krg larger krw lower under same stress.

Language: Английский

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Mechanical and acoustic characterization of carbon dioxide gas replacement of methane gas hydrate

Gas Science and Engineering, Journal Year: 2024, Volume and Issue: 131, P. 205444 - 205444

Published: Sept. 13, 2024

Language: Английский

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Permeability anisotropy analysis of two-phase flow during hydrate dissociation process

Gas Science and Engineering, Journal Year: 2024, Volume and Issue: 126, P. 205342 - 205342

Published: May 11, 2024

Language: Английский

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Mechanical and deformation behavior of layered hydrate-bearing clayey-silty sediments: different effective confining pressures and clay content analyses

Acta Geotechnica, Journal Year: 2024, Volume and Issue: 20(2), P. 861 - 890

Published: Dec. 14, 2024

Language: Английский

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