Theoretical Modeling of Dielectric Properties of Artificial Shales
Accurately modeling the anisotropic dielectric properties of shales is important for the interpretation of dielectric data acquired from shales as source rocks and unconventional reservoirs. We have developed a multiphase incremental model for the frequency dependent anisotropic dielectric propertie...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2018/2973181 |
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| _version_ | 1832564210411765760 |
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| author | Tongcheng Han Roman Beloborodov Marina Pervukhina Matthew Josh Yanlin Cui Pengyao Zhi |
| author_facet | Tongcheng Han Roman Beloborodov Marina Pervukhina Matthew Josh Yanlin Cui Pengyao Zhi |
| author_sort | Tongcheng Han |
| collection | DOAJ |
| description | Accurately modeling the anisotropic dielectric properties of shales is important for the interpretation of dielectric data acquired from shales as source rocks and unconventional reservoirs. We have developed a multiphase incremental model for the frequency dependent anisotropic dielectric properties of sedimentary rocks and presented an approach based on the developed model to simulate the measured anisotropic dielectric behaviors of artificial shales. The new model was built based on the theoretical basis of differential effective medium models for any number of mineral grain components aligned in any direction and was shown to be independent of the mixing order. The model incorporates the measured orientation distribution function of the clay particles to determine the shale dielectric anisotropy, and the frequency dependent dielectric behaviors of the wet clay minerals are obtained by inverting the dielectric properties of the artificial sample composed of clay and the same brine as in other artificial shales. The modeling technique combined important polarization mechanisms in the intermediate frequency range and was shown to give satisfactory fit to the measured frequency dependent anisotropic relative permittivity and conductivity of the artificial shales with varying silt contents by using a reasonable aspect ratio and constant dielectric parameters for the silt grains. |
| format | Article |
| id | doaj-art-882d7fab6b1a4166a979556961443f39 |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-882d7fab6b1a4166a979556961443f392025-02-03T01:11:37ZengWileyGeofluids1468-81151468-81232018-01-01201810.1155/2018/29731812973181Theoretical Modeling of Dielectric Properties of Artificial ShalesTongcheng Han0Roman Beloborodov1Marina Pervukhina2Matthew Josh3Yanlin Cui4Pengyao Zhi5School of Geosciences, China University of Petroleum (East China), Qingdao 266580, ChinaDepartment of Exploration Geophysics, Curtin University, Perth, WA 6151, AustraliaCSIRO Energy, Perth, WA 6151, AustraliaCSIRO Energy, Perth, WA 6151, AustraliaLibrary, China University of Petroleum (East China), Qingdao 266580, ChinaCollege of Earth Science and Engineering, Shandong University of Science of Technology, Qingdao 266590, ChinaAccurately modeling the anisotropic dielectric properties of shales is important for the interpretation of dielectric data acquired from shales as source rocks and unconventional reservoirs. We have developed a multiphase incremental model for the frequency dependent anisotropic dielectric properties of sedimentary rocks and presented an approach based on the developed model to simulate the measured anisotropic dielectric behaviors of artificial shales. The new model was built based on the theoretical basis of differential effective medium models for any number of mineral grain components aligned in any direction and was shown to be independent of the mixing order. The model incorporates the measured orientation distribution function of the clay particles to determine the shale dielectric anisotropy, and the frequency dependent dielectric behaviors of the wet clay minerals are obtained by inverting the dielectric properties of the artificial sample composed of clay and the same brine as in other artificial shales. The modeling technique combined important polarization mechanisms in the intermediate frequency range and was shown to give satisfactory fit to the measured frequency dependent anisotropic relative permittivity and conductivity of the artificial shales with varying silt contents by using a reasonable aspect ratio and constant dielectric parameters for the silt grains.http://dx.doi.org/10.1155/2018/2973181 |
| spellingShingle | Tongcheng Han Roman Beloborodov Marina Pervukhina Matthew Josh Yanlin Cui Pengyao Zhi Theoretical Modeling of Dielectric Properties of Artificial Shales Geofluids |
| title | Theoretical Modeling of Dielectric Properties of Artificial Shales |
| title_full | Theoretical Modeling of Dielectric Properties of Artificial Shales |
| title_fullStr | Theoretical Modeling of Dielectric Properties of Artificial Shales |
| title_full_unstemmed | Theoretical Modeling of Dielectric Properties of Artificial Shales |
| title_short | Theoretical Modeling of Dielectric Properties of Artificial Shales |
| title_sort | theoretical modeling of dielectric properties of artificial shales |
| url | http://dx.doi.org/10.1155/2018/2973181 |
| work_keys_str_mv | AT tongchenghan theoreticalmodelingofdielectricpropertiesofartificialshales AT romanbeloborodov theoreticalmodelingofdielectricpropertiesofartificialshales AT marinapervukhina theoreticalmodelingofdielectricpropertiesofartificialshales AT matthewjosh theoreticalmodelingofdielectricpropertiesofartificialshales AT yanlincui theoreticalmodelingofdielectricpropertiesofartificialshales AT pengyaozhi theoreticalmodelingofdielectricpropertiesofartificialshales |