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Keywords: electrical conductivity
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Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2974851
... annual meeting connectivity modeling weiss electrical conductivity complex fracture network References References Bear , J. , C. F. Tsang , and G. De Marsily , 2012 , Flow and contaminant transport in fractured rock : Academic Press . Beskardes , G. D...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17746017
... ABSTRACT Geophysics has long been used effectively to detect and delineate the presence of electrically conductive fluids such as landfill leachate, industrial wastes such as plating solutions, seawater and produced water (e.g., Hoekstra, 1998, Goldstein et al., 1990, and Ross et al., 1990...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5825918
... are well suited to submersible-based surveys. Since electrical conductivity of subseafloor materials can be frequency dependent, these induced polarization (IP) effects may affect the reliability of TDEM data interpretation. In this paper, we investigate IP effects on TDEM responses of deep-sea...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5909921
... understanding of the reservoir, decreasing the steam-to-oil ratio, locating missed pay, identifying thief zones, and more efficiently using resources (Singhai and Card, 1988). Because the electrical conductivity of a lithologic unit is affected by steaming, electric and electromagnetic methods are promising...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5931035
... Summary Electrical conductivity can be a diagnostic physical property for distinguishing geologic units and delineating the distribution of fluids such as hydrocarbons and saline water within these units. Electromagnetic (EM) methods are sensitive to conductivity contrasts and can be used...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0918
... Summary Structurally coupled joint inversion of seismic and electromagnetic data is a good candidate for recovering subsurface earth properties if the direction of change of electrical conductivity and acoustic impedance are systematically linked throughout a volume of earth. For example...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1488
... Summary In this work we propose a new approach for the upscaling problem of electrical conductivity in the context of electromagnetic methods. We pose the upscaling problem as a parameter estimation problem, which allow us to develop a goal-oriented, quantitative framework that combines...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1639
...). An electrically conductive proppant could create a significant physical property contrast between the propped region of the reservoir and the host rock. Electromagnetic geophysical methods can be used to image this property (Heagy and Oldenburg, 2013). However, traditional geophysical inversions are poorly...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1345
... reactive processes, such as ion exchange, thus changing the aqueous composition of the system, and consequently the fluid and bulk electrical conductivity. As a result, the measured electrical conductivity may not only reflect solely solute transport but also reactive processes. Here, we evaluate...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1137
... assumption of pore geometry, we adopt computational rock physics approach in this study. Multi-resolution µCT images are taken for carbonate cores belonging to different facies from middle east carbonate reservoir. Electrical conductivity and elastic properties (Vp, Vs) are computed on 3D rock micro...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1026
... to a remarkable degree. equation numerical result electrical conductivity approximation upstream oil & gas fractured media torquato effective conductivity complex reservoir conductivity percolation threshold jakobsen orientation aperture hydraulic fracturing self-consistent method...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-2686
... that the North Chalk has excess conductivity and that a part of this is contributed by the calcite surface in addition to excess conductivity due to clay. Introduction Electrical conductivity in reservoir rocks provides us with information on hydrocarbon saturation (Archie, 1942) because hydrocarbons...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-2580
... not only isotropic quantities associated with propagation of EM wave in the formation, but also to invert for the full electrical conductivity tensor. As the conductivity in shale also depends on the microstructure of the sediments, joint analysis of both resistivity and elastic anisotropy may provide...

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