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nonintrusive geophysical methods

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Journal Article

Heterogeneous reservoir seepage characterized by geophysical, hydrochemical, and hydrologic methods

Deqiang Mao, Yaxun Wang, Qifeng Guo, Dianji Li, Shiliang Liu, Jian Meng, Leijian Hu
Journal: Geophysics
Published: 02 September 2024
Geophysics (2024) 89 (5): B401–B413.
DOI: https://doi.org/10.1190/geo2024-0199.1
...Deqiang Mao; Yaxun Wang; Qifeng Guo; Dianji Li; Shiliang Liu; Jian Meng; Leijian Hu ABSTRACT Seepage characterization from reservoirs is challenging for various environmental and water resource applications. Nonintrusive geophysical methods can achieve excellent detection results, but they cannot...
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Induced polarization of clay-rich materials — Part 4: Water content and temperature effects in bentonites

J. El Alam, A. Revil, P. Dick
Journal: Geophysics
Published: 07 January 2025
Geophysics (2025) MR39–MR54.
DOI: https://doi.org/10.1190/geo2024-0110.1
... are their water content, dry density, water salinity, and temperature. Monitoring and assessing these parameters are, therefore, crucial to confirm that the seals’ safety functions are fulfilled during the life of a DGD. Induced polarization (IP) is a nonintrusive geophysical method able to perform this task...
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Elimination of mutual inductance effect for small-loop transient electromagnetic devices

Zhihong Fu, Haowen Wang, Yao Wang, Nengyi Fu, Heng-Ming Tai, Shanqiang Qin
Journal: Geophysics
Published: 26 March 2019
Geophysics (2019) 84 (3): E143–E154.
DOI: https://doi.org/10.1190/geo2018-0278.1
...Zhihong Fu; Haowen Wang; Yao Wang; Nengyi Fu; Heng-Ming Tai; Shanqiang Qin ABSTRACT The transient electromagnetic (TEM) method is a widely used nonintrusive geophysical method for ground exploration. Due to the mutual inductance between the transmitter (TX) coil and the receiver (RX) coil...
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Opposing-coils transient electromagnetic method focused near-surface resolution

Zhenzhu Xi, Xia Long, Long Huang, Sheng Zhou, Gang Song, Haitao Hou, Xingpeng Chen, Liang Wang, Wei Xiao, Qingxing Qi
Journal: Geophysics
Published: 07 July 2016
Geophysics (2016) 81 (5): E279–E285.
DOI: https://doi.org/10.1190/geo2014-0564.1
...Zhenzhu Xi; Xia Long; Long Huang; Sheng Zhou; Gang Song; Haitao Hou; Xingpeng Chen; Liang Wang; Wei Xiao; Qingxing Qi ABSTRACT The transient electromagnetic (TEM) method is a commonly used, nonintrusive, geophysical method, but inherent mutual induction between the transmitter (TX) and receiver (RX...
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Applied geophysics and the environment in Texas

Stephanie Hrabar
Journal: The Leading Edge
Published: 01 January 2002
The Leading Edge (2002) 21 (1): 68–69.
DOI: https://doi.org/10.1190/1.1445853
... at sites such as hazardous waste landfills and underground disposal wells. The use of nonintrusive geophysical methods is a luxury, not a requirement. A proposed “geoscience approach” would require fewer borings and be more cost-effective for the overall project. This approach requires the application...
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Passive Seismic Imaging of Urban Environments Using Distributed Acoustic Sensing: A Case Study from Melbourne, Australia

Voon Hui Lai, Meghan S. Miller, Chengxin Jiang, Yan Yang, Fabrizio Magrini, Zhongwen Zhan, Herb McQueen
Published: 03 December 2024
The Seismic Record (2024) 4 (4): 308–317.
DOI: https://doi.org/10.1785/0320240031
...Voon Hui Lai; Meghan S. Miller; Chengxin Jiang; Yan Yang; Fabrizio Magrini; Zhongwen Zhan; Herb McQueen Abstract Distributed acoustic sensing (DAS) offers a cost effective, nonintrusive method for high‐resolution near‐surface characterization in urban environments where conventional geophysical...
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Characterizing landfill extent, composition, and biogeochemical activity using electrical resistivity tomography and induced polarization under varying geomembrane coverage

Xinmin Ma, Jiaming Zhang, Nimrod Schwartz, Jing Li, Chen Chao, Jian Meng, Deqiang Mao
Journal: Geophysics
Published: 10 May 2024
Geophysics (2024) 89 (4): E151–E164.
DOI: https://doi.org/10.1190/geo2023-0599.1
...Xinmin Ma; Jiaming Zhang; Nimrod Schwartz; Jing Li; Chen Chao; Jian Meng; Deqiang Mao ABSTRACT Landfill monitoring is essential for sustainable waste management and environmental protection. Geophysical methods can provide quasicontinuous spatial and temporal insights into subsurface physical...
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A Survey of Department of Energy–Sponsored Geophysical Research for Shallow Waste Site Characterization

Donna Post Guillen, Russel C. Hertzog
Published: 01 February 2004
Vadose Zone Journal (2004) 3 (1): 122–133.
DOI: https://doi.org/10.2113/3.1.122
...). Three common themes appear in the research surveyed in this article: (i) the development of high-resolution imaging capabilities to capture important details of the heterogeneous nature of subsurface properties and processes, (ii) the coupling of nonintrusive survey geophysical measurements (e.g...
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Self-potential monitoring of a salt plume

P. Martínez-Pagán, A. Jardani, A. Revil, A. Haas
Journal: Geophysics
Published: 30 September 2010
Geophysics (2010) 75 (4): WA17–WA25.
DOI: https://doi.org/10.1190/1.3475533
...P. Martínez-Pagán; A. Jardani; A. Revil; A. Haas Abstract Nonintrusively monitoring the spread of contaminants in real time with a geophysical method is an important task in hydrogeophysics. We have developed a sandbox experiment showing that the self-potential method can locate both the source...
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3D mapping with MASW

Peter J. Hutchinson, Maggie H. Beird
Journal: The Leading Edge
Published: 01 April 2016
The Leading Edge (2016) 35 (4): 350–352.
DOI: https://doi.org/10.1190/tle35040350.1
... provided an inexpensive, nonintrusive method of mapping the top of rock. Case study 2 presents the use of multiple MASW soundings to predict site-wide dynamic soil properties at depth. MASW soundings for case study 3 provided V S data that were used to successfully image a thin lacustrine deposit within 10...
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Seismic monitoring of radioactive waste repositories

Edgar Manukyan, Hansruedi Maurer, Stefano Marelli, Stewart A. Greenhalgh, Alan G. Green
Journal: Geophysics
Published: 17 September 2012
Geophysics (2012) 77 (6): EN73–EN83.
DOI: https://doi.org/10.1190/geo2011-0420.1
... surveying techniques will have to be employed. Geophysical methods could be suitable for this purpose. Ultrasonic and seismic techniques originally developed for characterizing EDZs ( Falls and Young, 1998 ; Young and Collins, 2001 ; Schuster et al., 2001 ; Pettitt et al., 2002 ; Bastiaens et al., 2007...
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Workshop Review: Geophysical Aspects of Smart Cities

Koya Suto, Yunyue Elita Li, Arthur Cheng
Journal: The Leading Edge
Published: 01 October 2020
The Leading Edge (2020) 39 (10): 751–752.
DOI: https://doi.org/10.1190/tle39100751.1
... attendees. During the three-day workshop, geophysicists learned firsthand the needs of vast engineering applications, while civil engineers learned not only the capabilities but also the limitations of geophysical methods. The knowledge presented and exchanged in this workshop was too precious to share...
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Identifying ice wedges in ground-penetrating radar data from the Cold Regions Research and Engineering Laboratory permafrost tunnel, Fox, Alaska

Presley Greer, Shuhab D. Khan, Edgar A. Bering
Journal: Interpretation
Published: 25 June 2024
Interpretation (2024) 12 (3): T321–T329.
DOI: https://doi.org/10.1190/INT-2023-0057.1
... infrastructure. To avoid developing further infrastructure in areas containing ice wedges, it is necessary to improve methods of detecting subsurface ground ice. Ground-penetrating radar (GPR) is a nonintrusive remote sensing method of locating and characterizing permafrost and other subsurface features...
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Contributors

Journal: Geophysics
Published: 02 March 2012
Geophysics (2012) 77 (2): Z39–Z45.
DOI: https://doi.org/10.1190/geo2012-0131-CONTRI.1
... Geology Department of the Faculty of Engineering. His research interests include the application of geophysical and mapping methods to engineering problems such as land-use planning in karstic contexts and monitoring of contaminants transport and biodegradation. Ganpan Ke received an M.S. and B.A...
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Comparison of Phase Velocities from Array Measurements of Rayleigh Waves Associated with Microtremor and Results Calculated from Borehole Shear-Wave Velocity Profiles

Hsi-Ping Liu, David M. Boore, William B. Joyner, David H. Oppenheimer, Richard E. Warrick, Wenbo Zhang, John C. Hamilton, Leo T. Brown
Published: 01 June 2000
Bulletin of the Seismological Society of America (2000) 90 (3): 666–678.
DOI: https://doi.org/10.1785/0119980186
.... Drilling holes, however, is expensive. Nonintrusive surface methods are inexpensive for obtaining V S information, but not many comparisons with direct borehole measurements have been published. Because different assumptions are used in data interpretation of each surface method and public safety...
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Environmental applications of the IP method: Surveys of subsurface waste

Norman Carlson, Nordine Bouzid, Richard Byrd
Journal: The Leading Edge
Published: 01 February 2015
The Leading Edge (2015) 34 (2): 214–220.
DOI: https://doi.org/10.1190/tle34020214.1
... settlements in the United States (more than 4000 years), including Native American prehistoric pit houses and a Spanish mission. The use of surface-based, nonintrusive geophysical methods such as IP is particularly attractive in sensitive areas such as the Rio Nuevo site ( Thiel and Mabry, 2006...
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Measurement and Interpretation Uncertainty in Site Response of Nine Seismic Network Stations in Israel

Ronnie Kamai, Yaniv Darvasi, Yuval Peleg, Gony Yagoda‐Biran
Published: 01 August 2018
Seismological Research Letters (2018) 89 (5): 1796–1806.
DOI: https://doi.org/10.1785/0220180008
... for further use in engineering applications, using the refraction microtremor (ReMi) technique to obtain 1D velocity models of the subsurface at ISN stations across Israel. In this article, we compare measurements obtained with four noninvasive geophysical methods: ReMi and multichannel analysis of surface...
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Contributors

Journal: Geophysics
Published: 30 April 2012
Geophysics (2012) 77 (3): Z69–Z74.
DOI: https://doi.org/10.1190/geo2012-0404-CONTRI.1
... of Mining Engineering and Metallurgy. His research interests include geophysical methods applied to engineering and environmental problems and to the detection of geothermal fields. He is a member of SEG, EAGE, and BGS. Çağlayan Balkaya received a B.Sc. (2002) and M.Sc. (1998) in geophysical...
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Urban site characterization using DAS dark fibers on the MIT campus in Cambridge, Massachusetts

Hilary Chang, Nori Nakata
Journal: The Leading Edge
Published: 01 November 2024
The Leading Edge (2024) 43 (11): 747–756.
DOI: https://doi.org/10.1190/tle43110747.1
... along dark fibers using distributed acoustic sensing (DAS) has opened another possibility for nonintrusive geophysical survey techniques. Dark fibers are unused backup optic fibers in a telecommunication network. Several studies have demonstrated the use of campus or city dark fibers to characterize...
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Self-potential signals generated by the corrosion of buried metallic objects with application to contaminant plumes

J. B. Rittgers, A. Revil, M. Karaoulis, M. A. Mooney, L. D. Slater, E. A. Atekwana
Journal: Geophysics
Published: 28 August 2013
Geophysics (2013) 78 (5): EN65–EN82.
DOI: https://doi.org/10.1190/geo2013-0033.1
... of SP geophysical applications). Although the electric signals associated with these various cross-coupled-flow phenomena prove to broaden the applicability of the SP method, they can also complicate the interpretation of SP signals when the physical and chemical states of the volume being investigated...
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