Compaction-Induced Permeability Loss’s Effect on Induced Seismicity During Reservoir Depletion

Fryer, Barnaby; Siddiqi, Gunter; Laloui, Lyesse

doi:10.1007/s00024-019-02198-0

Cited by 4 publications

(1 citation statement)

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“…As the plates beneath the Earth’s crust squeeze and collide with one another, seismic fault zones become active 1 – 4 , and seismic activities are distributed in a wide range, thereby causing serious geological disasters. Every strong earthquake results in considerable damage 5 – 9 .…”

Section: Introductionmentioning

confidence: 99%

Long-term sustainability of biogas bubbles in sand

Peng

et al. 2020

Sci Rep

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Desaturation is a new method to mitigate liquefaction of sand. It aims to prevent liquefaction by generating gas/air in the pores of fully saturated sands, and biogas is one of the most suitable gas. In order to evaluate the long-term sustainability of biogas bubbles, a series sustainability test on biogas bubbles in pores of sand was conducted with a one-dimensional device under hydrostatic condition, hydraulic gradient flow condition and horizontal excitation condition. The variation trend of the retention of biogas bubbles in the pores of soil under the aforementioned conditions was analyzed. Test results indicated that after 72 weeks of monitoring sand samples, biogas bubbles existed stably in the pores of soil under hydrostatic conditions. In hydraulic gradient flow, the stability under upward seepage flow showed a similar trend to that of downward seepage flow. When the hydraulic gradient was constant, the degree of saturation increased in a certain period and finally remained constant. When the hydraulic gradient increased by 0.1, 0.2, 0.3, 0.4, and 0.5, the degrees of saturation increase were 0.8%, 11.5%, 0.5%, 0.1%, and 0%, respectively. After 41,200 cycles with different accelerations, the degree of saturation of the sample increased slightly, and the biogas bubbles basically remained stable.

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