| DOI: | 10.1002/2015GL063538
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| 论文题名: | Bubbles attenuate elastic waves at seismic frequencies: First experimental evidence |
| 作者: | Tisato N.; Quintal B.; Chapman S.; Podladchikov Y.; Burg J.-P.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9302
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| EISSN: | 1944-9033
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| 出版年: | 2015
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| 卷: | 42, 期:10 | | 起始页码: | 3880
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| 结束页码: | 3887
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| 语种: | 英语
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| 英文关键词: | attenuation
; exsolution-dissolution
; gas bubbles
; seismic waves
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| Scopus关键词: | Bubbles (in fluids)
; Dissolution
; Elastic waves
; Seismic waves
; Seismology
; attenuation
; Experimental evidence
; Exsolution
; Frequency-dependent attenuation
; Gas bubble
; Laboratory measurements
; Seismic frequencies
; Seismic tomography
; Gases
; elastic wave
; experimental study
; hazard assessment
; seismic attenuation
; seismic tomography
; seismic wave
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| 英文摘要: | The migration of gases from deep to shallow reservoirs can cause damageable events. For instance, some gases can pollute the biosphere or trigger explosions and eruptions. Seismic tomography may be employed to map the accumulation of subsurface bubble-bearing fluids to help mitigating such hazards. Nevertheless, how gas bubbles modify seismic waves is still unclear. We show that saturated rocks strongly attenuate seismic waves when gas bubbles occupy part of the pore space. Laboratory measurements of elastic wave attenuation at frequencies <100 Hz are modeled with a dynamic gas dissolution theory demonstrating that the observed frequency-dependent attenuation is caused by wave-induced-gas-exsolution-dissolution (WIGED). This result is incorporated into a numerical model simulating the propagation of seismic waves in a subsurface domain containing CO2-gas bubbles. This simulation shows that WIGED can significantly modify the wavefield and illustrates how accounting for this physical mechanism can potentially improve the monitoring and surveying of gas bubble-bearing fluids in the subsurface. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931366592&doi=10.1002%2f2015GL063538&partnerID=40&md5=7f3aebffd05b8a50a13afccd5fd03ca8
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8918
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Civil Engineering, University of Toronto, Toronto, ON, Canada
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| Recommended Citation: | |
Tisato N.,Quintal B.,Chapman S.,et al. Bubbles attenuate elastic waves at seismic frequencies: First experimental evidence[J]. Geophysical Research Letters,2015-01-01,42(10).
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