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
Citations
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Utilizing the towed Transient ElectroMagnetic method (tTEM) for achieving unprecedented near-surface detail in geological mapping
Peter B.E. Sandersen,Anders Juhl Kallesøe,Ingelise Møller,Anne-Sophie Høyer,Flemming Jørgensen,J.B. Pedersen,Anders Vest Christiansen +6 more
TL;DR: In this article, a new high-resolution electromagnetic survey method, tTEM, has been developed to map the near-surface Quaternary geology in 3D in areas affected by the Pleistocene glaciations.
Journal ArticleDOI
Development of non-collinear arrays for use near wastewater holding ponds
TL;DR: In this article, the theoretical development and testing of non-collinear arrays which proved to be a viable approach to unique array geometries necessitated by feedlot designs were discussed.
Journal ArticleDOI
Accurate imaging of hydraulic fractures using templated electrical resistivity tomography
Hui Wu,Pengcheng Fu,Xianjin Yang,Joseph P. Morris,Timothy C. Johnson,Randolph R. Settgast,Frederick J. Ryerson +6 more
TL;DR: In this paper, the authors proposed a novel templated electrical resistivity tomography (TERT) method to estimate both the extents and aperture of a hydraulic fracture through two key innovations.
Journal ArticleDOI
Exploring the regolith with electrical resistivity tomography in large-scale surveys: electrode spacing-related issues and possibility
TL;DR: In this paper, a negative trade-off between larger electrode spacing and reduced accuracy of the inverted ERT images for shallow layers was investigated for a set of synthetic "conductive-resistive-conductive" three-layered soil-saprock/saprolite-bedrock models in combination with a reference field dataset.
Journal ArticleDOI
Finite element numerical simulation of 2.5D direct current method based on mesh refinement and recoarsement
TL;DR: This work introduces the mesh refinement and mesh recoarsement into the traditional structured mesh subdivision and solves the singularity problem and reduces the number of grid cells by 80% compared to the uniform grid refinement.
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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