A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks

Elastic wave propagation in partially saturated reservoir rocks induces fluid flow in multi-scale pore spaces, leading to wave anelasticity (velocity dispersion and attenuation). The propagation characteristics cannot be described by a single-scale flow-induced dissipation mechanism. To overcome thi...

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Autores principales:	Chunfang Wu, Jing Ba, Xiaoqin Zhong, José M. Carcione, Lin Zhang, Chuantong Ruan
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	partial saturation patchy saturation squirt flow P-wave velocity dispersion and attenuation anelasticity ultrasonic measurements Technology T
Acceso en línea:	https://doaj.org/article/d3477075289a46a194696714e8555726
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spelling	oai:doaj.org-article:d3477075289a46a194696714e85557262021-11-25T17:27:19ZA New Anelasticity Model for Wave Propagation in Partially Saturated Rocks10.3390/en142276191996-1073https://doaj.org/article/d3477075289a46a194696714e85557262021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7619https://doaj.org/toc/1996-1073Elastic wave propagation in partially saturated reservoir rocks induces fluid flow in multi-scale pore spaces, leading to wave anelasticity (velocity dispersion and attenuation). The propagation characteristics cannot be described by a single-scale flow-induced dissipation mechanism. To overcome this problem, we combine the White patchy-saturation theory and the squirt flow model to obtain a new anelasticity theory for wave propagation. We consider a tight sandstone Qingyang area, Ordos Basin, and perform ultrasonic measurements at partial saturation and different confining pressures, where the rock properties are obtained at full-gas saturation. The comparison between the experimental data and the theoretical results yields a fairly good agreement, indicating the efficacy of the new theory.Chunfang WuJing BaXiaoqin ZhongJosé M. CarcioneLin ZhangChuantong RuanMDPI AGarticlepartial saturationpatchy saturationsquirt flowP-wave velocity dispersion and attenuationanelasticityultrasonic measurementsTechnologyTENEnergies, Vol 14, Iss 7619, p 7619 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	partial saturation patchy saturation squirt flow P-wave velocity dispersion and attenuation anelasticity ultrasonic measurements Technology T
spellingShingle	partial saturation patchy saturation squirt flow P-wave velocity dispersion and attenuation anelasticity ultrasonic measurements Technology T Chunfang Wu Jing Ba Xiaoqin Zhong José M. Carcione Lin Zhang Chuantong Ruan A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks
description	Elastic wave propagation in partially saturated reservoir rocks induces fluid flow in multi-scale pore spaces, leading to wave anelasticity (velocity dispersion and attenuation). The propagation characteristics cannot be described by a single-scale flow-induced dissipation mechanism. To overcome this problem, we combine the White patchy-saturation theory and the squirt flow model to obtain a new anelasticity theory for wave propagation. We consider a tight sandstone Qingyang area, Ordos Basin, and perform ultrasonic measurements at partial saturation and different confining pressures, where the rock properties are obtained at full-gas saturation. The comparison between the experimental data and the theoretical results yields a fairly good agreement, indicating the efficacy of the new theory.
format	article
author	Chunfang Wu Jing Ba Xiaoqin Zhong José M. Carcione Lin Zhang Chuantong Ruan
author_facet	Chunfang Wu Jing Ba Xiaoqin Zhong José M. Carcione Lin Zhang Chuantong Ruan
author_sort	Chunfang Wu
title	A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks
title_short	A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks
title_full	A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks
title_fullStr	A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks
title_full_unstemmed	A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks
title_sort	new anelasticity model for wave propagation in partially saturated rocks
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d3477075289a46a194696714e8555726
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A New Anelasticity Model for Wave Propagation in Partially Saturated Rocks

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