Journal ArticleDOI
Recent developments in the direct-current geoelectrical imaging method
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TLDR
There have been major improvements in instrumentation, field survey design and data inversion techniques for the geoelectrical method over the past 25 years as mentioned in this paper, which has made it possible to conduct large 2D, 3D and even 4D surveys efficiently to resolve complex geological structures that were not possible with traditional 1-D surveys.About:
This article is published in Journal of Applied Geophysics.The article was published on 2013-08-01. It has received 702 citations till now. The article focuses on the topics: Computer technology.read more
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Journal ArticleDOI
Electrical Resistivity Survey of the Gunung Anyar Mud Volcano
TL;DR: In this paper , a resistivity survey was conducted to obtain the subsurface structure of the Gunung Anyar Mud Volcano, and the results showed that very low resistivity values are located at the top of the soil structure with 0 to 4 meters depth.
Journal ArticleDOI
Strategy for Optimization of Arbitrary Electrode Distribution for 3D Electrical Resistivity Tomography in Urban Zones
Lincheng Jiang,Bangbing Wang,Gang Tian,Xinxin He,Anxing Zou,Xia Guo,Huanyuan Chen,Amr Abd El-Raouf,Amr Abd El-Raouf +8 more
Abstract: In urban areas, dense buildings, traffic road networks, and concrete floors severely restrict geoelectric methods, preventing the arrangement of ideal straight lines or grid survey layouts. We present herein an optimized three-dimensional (3D) electrical resistivity tomography (ERT) survey design based on arbitrarily distributed electrodes with a dipole–dipole array as the basic unit. Each unit is independent and can be randomly distributed and adjusted in length. The component electrodes can be used as current or potential electrodes as required. This method can eliminate the limitations of grids and cables. However, the random distribution of electrodes does not mean that there are no restrictions, as one must optimize the most suitable ones based on measurements showing data volumes that far exceed those of conventional survey designs. The compared target resolution by batch method is used as the optimized array. It focuses on the target area and filters out data before the Compare-R calculation is applied. This is faster than the traditional Compare-R algorithm due to its batch calculation. Furthermore, the frequency of electrodes was analyzed to reduce the number of electrodes used while maintaining good results. A field example with drilling information verification demonstrates the effectiveness of the method. We use the adjusted optimization method for the random distribution of electrodes in the exploration design, achieving good imaging results in combination.
Book ChapterDOI
Noninvasive Characterization and Monitoring of Building Elements: Electrical Resistivity Investigations
Journal ArticleDOI
Geoelectric Monitoring of the Electric Potential Field of the Lower Rio Grande before, during, and after Intermittent Streamflow, May–October, 2022
Scott Ikard,Kenneth C. Carroll,Dale F. Rucker,Andrew Teeple,Chia Hsing Tsai,Jason D. Payne,Erek H. Fuchs,A.H.M. Nasimul Jamil +7 more
TL;DR: In this paper , self-potential (SP) monitoring and time-lapse electric resistivity tomography (ERT) were performed along linear cross-sections spanning the riverbed and flood plain for more than 4 months to monitor the transient hydraulic connection between the river and the alluvial aquifer by measuring timelapse changes in the electric potential field.
Journal ArticleDOI
Yeni Nesil Yazılım Paketleri Kullanarak Üç-Boyutlu Görüntüleme Tekniklerinin Elektrik Özdirenç Tomografi Verilerine Uygulanması
TL;DR: In this article, the authors discuss the DAO DAO problem in the context of an elektrik kesitler in the Turkish Republic of Turkey, where they show that the problem can be solved by using the kullanilmis.
References
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Journal ArticleDOI
The electrical resistivity log as an aid in determining some reservoir characteristics
TL;DR: The usefulness of the electrical resistivity log in determining reservoir characteristics is governed largely by: (1) the accuracy with which the true resistivity of the formation can be determined; (2) the scope of detailed data concerning the relation of resistivity measurements to formation characteristics; (3) the available information concerning the conductivity of connate or formation waters; and (4) the extent of geologic knowledge regarding probable changes in facies within given horizons, both vertically and laterally, particularly in relation to the resultant effect on the electrical properties of the reservoir as mentioned in this paper.
Book
An Introduction to Applied and Environmental Geophysics
TL;DR: The first edition of the book as mentioned in this paper contains case histories, and descriptions of geophysical techniques not previously included in such textbooks, but the level of mathematics and physics is deliberately kept to a minimum but is described qualitatively within the text.
Journal ArticleDOI
Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method1
M.H. Loke,R. D. Barker +1 more
TL;DR: In this paper, a smoothness-constrained least-squares method was used for the interpretation of data from resistivity tomography surveys on an 80486DX microcomputer.
Rapid least-squared inversion of apparent resisitivity pseudosections by a quasi-Newton method
M. H. Loke,R. D. Barker +1 more
TL;DR: In this article, a smoothness-constrained least-squares method was used for the interpretation of data from resistivity tomography surveys on an 80486DX microcomputer.
Journal ArticleDOI
Occam's inversion to generate smooth, two-dimensional models from magnetotelluric data
TL;DR: In this paper, the authors propose an extension of the existing 1-D algorithm, Occam's inversion, to smooth 2-D models using an extension to the existing Occam inversion.
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