The Experts below are selected from a list of 1671 Experts worldwide ranked by ideXlab platform
Jianhui Li - One of the best experts on this subject based on the ideXlab platform.
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3-D Marine Controlled-Source Electromagnetic Modeling in Electrically AnIsotropic Formations Using Scattered Scalar–Vector Potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
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3 d marine controlled source electromagnetic modeling in electrically anIsotropic formations using scattered scalar vector potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
Ronghua Peng - One of the best experts on this subject based on the ideXlab platform.
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3-D Marine Controlled-Source Electromagnetic Modeling in Electrically AnIsotropic Formations Using Scattered Scalar–Vector Potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
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3 d marine controlled source electromagnetic modeling in electrically anIsotropic formations using scattered scalar vector potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
Xiangyun Hu - One of the best experts on this subject based on the ideXlab platform.
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3-D Marine Controlled-Source Electromagnetic Modeling in Electrically AnIsotropic Formations Using Scattered Scalar–Vector Potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
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3 d marine controlled source electromagnetic modeling in electrically anIsotropic formations using scattered scalar vector potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
Bin Chen - One of the best experts on this subject based on the ideXlab platform.
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3-D Marine Controlled-Source Electromagnetic Modeling in Electrically AnIsotropic Formations Using Scattered Scalar–Vector Potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
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3 d marine controlled source electromagnetic modeling in electrically anIsotropic formations using scattered scalar vector potentials
IEEE Geoscience and Remote Sensing Letters, 2018Co-Authors: Ronghua Peng, Xiangyun Hu, Bin Chen, Jianhui LiAbstract:Marine controlled-source electromagnetic (CSEM) method has become a popular technique for offshore hydrocarbon exploration. It has been well recognized that marine CSEM data are strongly affected by electrical anisotropy of geologic formations in practice. Here, we present a robust and efficient finite volume algorithm for simulating marine CSEM responses in 3-D arbitrarily anIsotropic formations. The algorithm is based on scattered scalar–vector potentials which improve the ill-conditioning of the resulting linear system by deflating the null space of the curl operator, and a conservative volume averaging scheme is utilized for the discretization of arbitrary electrical anisotropy. The accuracy of our algorithm is validated against quasi-analytic solutions for a layered vertical transverse Isotropic Reservoir model. It is then demonstrated by numerical results that the marine CSEM fields are significantly affected by the anIsotropic conductivity tensor, and neglect of the full anisotropy of geologic formations may cause misleading data interpretation.
Nima Shokri - One of the best experts on this subject based on the ideXlab platform.
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Modelling foam improved oil recovery within a heterogeneous Reservoir
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2016Co-Authors: Elizabeth Mas Hernández, Paul Grassia, Nima ShokriAbstract:The displacement of foam within a heterogeneous Reservoir during foam improved oil recovery is described with the pressure-driven growth model. The pressure-driven growth model has previously been used to study foam motion for homogeneous cases. Here the foam model is modified in such a way that it includes terms for variable permeability. This model gives the evolution of the foam motion over time and the shape of the foam front, a wet foam zone between liquid-filled and gas-filled zones. The foam front shape for a heterogeneous or stratified Reservoir develops concave and convex regions. For shapes such as these, the numerical solution of pressure-driven growth requires special numerical techniques, particularly in the case where concavities arise. We also present some analysis of the level of heterogeneity and how it affects the displacement, the shape of the front developing a set of concave corners. In addition to this we consider a heterogeneous and Isotropic Reservoir, in which case the foam front can sustain concavities, without these concavities having the same tendency to develop into corners.
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Modelling foam improved oil recovery within a heterogeneous Reservoir A Physicochemical and engineering aspects
Colloids and Surfaces, 2016Co-Authors: Elizabeth Mas Hernández, Paul Grassia, Nima ShokriAbstract:The displacement of foam within a heterogeneous Reservoir during foam improved oil recovery is described with the pressure-driven growth model. The pressure-driven growth model has previously been used to study foam motion for homogeneous cases. Here the foam model is modified in such a way that it includes terms for variable permeability. This model gives the evolution of the foam motion over time and the shape of the foam front, a wet foam zone between liquid-filled and gas-filled zones. The foam front shape for a heterogeneous or stratified Reservoir develops concave and convex regions. For shapes such as these, the numerical solution of pressure-driven growth requires special numerical techniques, particularly in the case where concavities arise. We also present some analysis of the level of heterogeneity and how it affects the displacement, the shape of the front developing a set of concave corners. In addition to this we consider a heterogeneous and Isotropic Reservoir, in which case the foam front can sustain concavities, without these concavities having the same tendency to develop into corners.
