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DOI | 10.1029/2019GL082419 |
Evolution in Seismic Properties During Low and Intermediate Water Saturation: Competing Mechanisms During Water Imbibition? | |
Pimienta, L.1; David, C.2; Sarout, J.3; Perrot, X.4; Dautriat, J.3; Barnes, C.2 | |
2019-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:9页码:4581-4590 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; France; Australia |
英文摘要 | Despite the efforts reported in the literature to explain contrasting experimental observations, the evolution of seismic attributes (velocity and attenuation) of rocks across the saturation range remains ill understood. In a comparative study, we monitored the evolution of ultrasonic P wave attributes in a porous sandstone subjected to two experiments of moisture adsorption and water spontaneous imbibition. Both experiments highlighted a significant (i.e., by 1 order of magnitude) and similar drop in P waves amplitudes, although the maximum saturations reached in each experiment is very different (i.e., about 2% vs. 70%). However, only moisture adsorption leads to a dramatic elastic softening (velocity reduction). This difference might be explained by the coupling between two competing physical mechanisms taking place during water imbibition, namely, elastic softening driven by water adsorption at the grain contact and elastic stiffening driven by full saturation of the grain contacts, at the ultrasonic frequency of the measurement. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468869500005 |
WOS关键词 | ELASTIC-WAVE VELOCITIES ; SEDIMENTARY-ROCKS ; SQUIRT FLOW ; ATTENUATION ; DEPENDENCE ; DISPERSION ; PORE ; DRY ; PERMEABILITY ; SANDSTONES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183241 |
专题 | 气候变化 |
作者单位 | 1.Ecole Polytech Fed Lausanne, Lab Expt Rock Mech, Lausanne, Switzerland; 2.Univ Cergy Pontoise, Lab Geosci & Environm Cergy, Cergy Pontoise, France; 3.CSIRO Energy, Perth, WA, Australia; 4.PSL Univ, Lab Meterol Dynam, Ecole Normale Super, Paris, France |
推荐引用方式 GB/T 7714 | Pimienta, L.,David, C.,Sarout, J.,et al. Evolution in Seismic Properties During Low and Intermediate Water Saturation: Competing Mechanisms During Water Imbibition?[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(9):4581-4590. |
APA | Pimienta, L.,David, C.,Sarout, J.,Perrot, X.,Dautriat, J.,&Barnes, C..(2019).Evolution in Seismic Properties During Low and Intermediate Water Saturation: Competing Mechanisms During Water Imbibition?.GEOPHYSICAL RESEARCH LETTERS,46(9),4581-4590. |
MLA | Pimienta, L.,et al."Evolution in Seismic Properties During Low and Intermediate Water Saturation: Competing Mechanisms During Water Imbibition?".GEOPHYSICAL RESEARCH LETTERS 46.9(2019):4581-4590. |
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