Properties of a deep seismic waveguide measured with an optical fiber
Low-velocity zones located deep in the subsurface can act as seismic waveguides. Traditionally, their experimental observation has been limited by the practical challenges of in situ recording. We use a measurement technique in which optical fibers are turned into seismic sensors. The fiber is deplo...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
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American Physical Society
2021-02-01
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Series: | Physical Review Research |
Online Access: | http://doi.org/10.1103/PhysRevResearch.3.013164 |
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author | Ariel Lellouch Ettore Biondi Biondo L. Biondi Bin Luo Ge Jin Mark A. Meadows |
author_facet | Ariel Lellouch Ettore Biondi Biondo L. Biondi Bin Luo Ge Jin Mark A. Meadows |
author_sort | Ariel Lellouch |
collection | DOAJ |
description | Low-velocity zones located deep in the subsurface can act as seismic waveguides. Traditionally, their experimental observation has been limited by the practical challenges of in situ recording. We use a measurement technique in which optical fibers are turned into seismic sensors. The fiber is deployed along a horizontal well drilled inside a 15-m-thin shale formation at a depth of about 2 km. Owing to the high-resolution recording of the optical fiber, we can distinctly observe three previously elusive guided wave modes over a wide frequency range. As their propagation is primarily confined to the waveguide and strongly depends on its seismic properties, such guided waves hold tremendous potential for high-resolution imaging of deep low-velocity structures, such as fault zones, saline aquifers, and hydrocarbon reservoirs. |
first_indexed | 2024-04-24T10:20:08Z |
format | Article |
id | doaj.art-0d4026d617e04c309e4b3c71674ee55f |
institution | Directory Open Access Journal |
issn | 2643-1564 |
language | English |
last_indexed | 2024-04-24T10:20:08Z |
publishDate | 2021-02-01 |
publisher | American Physical Society |
record_format | Article |
series | Physical Review Research |
spelling | doaj.art-0d4026d617e04c309e4b3c71674ee55f2024-04-12T17:07:33ZengAmerican Physical SocietyPhysical Review Research2643-15642021-02-013101316410.1103/PhysRevResearch.3.013164Properties of a deep seismic waveguide measured with an optical fiberAriel LellouchEttore BiondiBiondo L. BiondiBin LuoGe JinMark A. MeadowsLow-velocity zones located deep in the subsurface can act as seismic waveguides. Traditionally, their experimental observation has been limited by the practical challenges of in situ recording. We use a measurement technique in which optical fibers are turned into seismic sensors. The fiber is deployed along a horizontal well drilled inside a 15-m-thin shale formation at a depth of about 2 km. Owing to the high-resolution recording of the optical fiber, we can distinctly observe three previously elusive guided wave modes over a wide frequency range. As their propagation is primarily confined to the waveguide and strongly depends on its seismic properties, such guided waves hold tremendous potential for high-resolution imaging of deep low-velocity structures, such as fault zones, saline aquifers, and hydrocarbon reservoirs.http://doi.org/10.1103/PhysRevResearch.3.013164 |
spellingShingle | Ariel Lellouch Ettore Biondi Biondo L. Biondi Bin Luo Ge Jin Mark A. Meadows Properties of a deep seismic waveguide measured with an optical fiber Physical Review Research |
title | Properties of a deep seismic waveguide measured with an optical fiber |
title_full | Properties of a deep seismic waveguide measured with an optical fiber |
title_fullStr | Properties of a deep seismic waveguide measured with an optical fiber |
title_full_unstemmed | Properties of a deep seismic waveguide measured with an optical fiber |
title_short | Properties of a deep seismic waveguide measured with an optical fiber |
title_sort | properties of a deep seismic waveguide measured with an optical fiber |
url | http://doi.org/10.1103/PhysRevResearch.3.013164 |
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