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Title: The Effect of Crack Orientation on the Nonlinear Interaction of a P-wave with an S-wave

Abstract

Cracks, joints, fluids, and other pore-scale structures have long been hypothesized to be the cause of the large elastic nonlinearity observed in rocks. It is difficult to definitively say which pore-scale features are most important, however, because of the difficulty in isolating the source of the nonlinear interaction. In this work, we focus on the influence of cracks on the recorded nonlinear signal and in particular on how the orientation of microcracks changes the strength of the nonlinear interaction. We do this by studying the effect of orientation on the measurements in a rock with anisotropy correlated with the presence and alignment of microcracks. We measure the nonlinear response via the traveltime delay induced in a low-amplitude P wave probe by a high-amplitude S wave pump. We find evidence that crack orientation has a significant effect on the nonlinear signal.

Authors:
 [1];  [2];  [3];  [4]
  1. Geophysics Group, Earth and Environmental Sciences Division, Los Alamos National Lab, Los Alamos NM USA
  2. Earth Sciences Department, Memorial University, St John's NL Canada
  3. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge MA USA; Jilin University, Changchun China
  4. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge MA USA
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; National Natural Science Foundation of China (NSFC)
OSTI Identifier:
1259957
Report Number(s):
LA-UR-15-29525
Journal ID: ISSN 0094-8276
Grant/Contract Number:  
AC52-06NA25396; 41430322
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 43; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; Earth Sciences; Nonlinearity Cracks Sandstone

Citation Formats

TenCate, J. A., Malcolm, A. E., Feng, X., and Fehler, M. C. The Effect of Crack Orientation on the Nonlinear Interaction of a P-wave with an S-wave. United States: N. p., 2016. Web. doi:10.1002/2016GL069219.
TenCate, J. A., Malcolm, A. E., Feng, X., & Fehler, M. C. The Effect of Crack Orientation on the Nonlinear Interaction of a P-wave with an S-wave. United States. https://doi.org/10.1002/2016GL069219
TenCate, J. A., Malcolm, A. E., Feng, X., and Fehler, M. C. 2016. "The Effect of Crack Orientation on the Nonlinear Interaction of a P-wave with an S-wave". United States. https://doi.org/10.1002/2016GL069219. https://www.osti.gov/servlets/purl/1259957.
@article{osti_1259957,
title = {The Effect of Crack Orientation on the Nonlinear Interaction of a P-wave with an S-wave},
author = {TenCate, J. A. and Malcolm, A. E. and Feng, X. and Fehler, M. C.},
abstractNote = {Cracks, joints, fluids, and other pore-scale structures have long been hypothesized to be the cause of the large elastic nonlinearity observed in rocks. It is difficult to definitively say which pore-scale features are most important, however, because of the difficulty in isolating the source of the nonlinear interaction. In this work, we focus on the influence of cracks on the recorded nonlinear signal and in particular on how the orientation of microcracks changes the strength of the nonlinear interaction. We do this by studying the effect of orientation on the measurements in a rock with anisotropy correlated with the presence and alignment of microcracks. We measure the nonlinear response via the traveltime delay induced in a low-amplitude P wave probe by a high-amplitude S wave pump. We find evidence that crack orientation has a significant effect on the nonlinear signal.},
doi = {10.1002/2016GL069219},
url = {https://www.osti.gov/biblio/1259957}, journal = {Geophysical Research Letters},
issn = {0094-8276},
number = ,
volume = 43,
place = {United States},
year = {Mon Jun 06 00:00:00 EDT 2016},
month = {Mon Jun 06 00:00:00 EDT 2016}
}

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Cited by: 16 works
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Works referenced in this record:

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  • TenCate, James A.; Van Den Abeele, Koen E. A.; Shankland, Thomas J.
  • The Journal of the Acoustical Society of America, Vol. 100, Issue 3
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Short‐Period Nonlinear Viscoelastic Memory of Rocks Revealed by Copropagating Longitudinal Acoustic Waves
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Imaging and Monitoring Temporal Changes of Shallow Seismic Velocities at the Garner Valley Near Anza, California, Following the M7.2 2010 El Mayor‐Cucapah Earthquake
journal, January 2020


Direct imaging of moisture effects during slow dynamic nonlinearity
journal, January 2019