Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids

Abstract The seismic reflection and transmission characteristics of a single layer sandwiched between two dissimilar poroelastic solids saturated with two immiscible viscous fluids are investigated. The sandwiched layer is modeled as a porous solid with finite thickness. The propagation of waves is...

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Autores principales:	Manjeet Kumari, Mahabir Singh Barak, Manjeet Kumar
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Sandwiched layer Immiscible pore fluids Inhomogeneous wave Reflection and transmission coefficients Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/b5e3b6b2e1984502943a6662b81c31ff
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spelling	oai:doaj.org-article:b5e3b6b2e1984502943a6662b81c31ff2021-12-02T07:34:46ZSeismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids10.1007/s12182-017-0195-91672-51071995-8226https://doaj.org/article/b5e3b6b2e1984502943a6662b81c31ff2017-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0195-9https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract The seismic reflection and transmission characteristics of a single layer sandwiched between two dissimilar poroelastic solids saturated with two immiscible viscous fluids are investigated. The sandwiched layer is modeled as a porous solid with finite thickness. The propagation of waves is represented with potential functions. The displacements of particles in different phases of the aggregate are defined in terms of these potential functions. Due to the presence of viscosity in pore fluids, the reflected and transmitted waves are inhomogeneous in nature, i.e., with different directions of propagation and attenuation. The closed-form analytical expressions for reflection and transmission coefficients are derived theoretically for appropriate boundary conditions. These expressions are calculated as a non-singular system of linear algebraic equations and depend on the various parameters involved in this non-singular system. Hence, numerical examples are studied to determine the effects of various properties of the sandwich layer on reflection and transmission coefficients. The essential features of layer thickness, incident direction, wave frequency, liquid saturation and capillary pressure of the porous layer on reflection and transmission coefficients are depicted graphically and discussed. The analysis shows that reflection and transmission coefficients are strongly associated with incident direction and various properties of the porous layer.Manjeet KumariMahabir Singh BarakManjeet KumarKeAi Communications Co., Ltd.articleSandwiched layerImmiscible pore fluidsInhomogeneous waveReflection and transmission coefficientsScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 4, Pp 676-693 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sandwiched layer Immiscible pore fluids Inhomogeneous wave Reflection and transmission coefficients Science Q Petrology QE420-499
spellingShingle	Sandwiched layer Immiscible pore fluids Inhomogeneous wave Reflection and transmission coefficients Science Q Petrology QE420-499 Manjeet Kumari Mahabir Singh Barak Manjeet Kumar Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
description	Abstract The seismic reflection and transmission characteristics of a single layer sandwiched between two dissimilar poroelastic solids saturated with two immiscible viscous fluids are investigated. The sandwiched layer is modeled as a porous solid with finite thickness. The propagation of waves is represented with potential functions. The displacements of particles in different phases of the aggregate are defined in terms of these potential functions. Due to the presence of viscosity in pore fluids, the reflected and transmitted waves are inhomogeneous in nature, i.e., with different directions of propagation and attenuation. The closed-form analytical expressions for reflection and transmission coefficients are derived theoretically for appropriate boundary conditions. These expressions are calculated as a non-singular system of linear algebraic equations and depend on the various parameters involved in this non-singular system. Hence, numerical examples are studied to determine the effects of various properties of the sandwich layer on reflection and transmission coefficients. The essential features of layer thickness, incident direction, wave frequency, liquid saturation and capillary pressure of the porous layer on reflection and transmission coefficients are depicted graphically and discussed. The analysis shows that reflection and transmission coefficients are strongly associated with incident direction and various properties of the porous layer.
format	article
author	Manjeet Kumari Mahabir Singh Barak Manjeet Kumar
author_facet	Manjeet Kumari Mahabir Singh Barak Manjeet Kumar
author_sort	Manjeet Kumari
title	Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
title_short	Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
title_full	Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
title_fullStr	Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
title_full_unstemmed	Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
title_sort	seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/b5e3b6b2e1984502943a6662b81c31ff
work_keys_str_mv	AT manjeetkumari seismicreflectionandtransmissioncoefficientsofasinglelayersandwichedbetweentwodissimilarporoelasticsolids AT mahabirsinghbarak seismicreflectionandtransmissioncoefficientsofasinglelayersandwichedbetweentwodissimilarporoelasticsolids AT manjeetkumar seismicreflectionandtransmissioncoefficientsofasinglelayersandwichedbetweentwodissimilarporoelasticsolids
_version_	1718399361331757056

Seismic reflection and transmission coefficients of a single layer sandwiched between two dissimilar poroelastic solids

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