气候变化领域集成服务门户(CCPortal): Thermoelastic Dispersion and Attenuation of P and SV Wave Scattering by Aligned Fluid-Saturated Cracks of Finite Thickness in an Isothermal Elastic Medium

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DOI	10.1029/2020JB019942
	Thermoelastic Dispersion and Attenuation of P and SV Wave Scattering by Aligned Fluid-Saturated Cracks of Finite Thickness in an Isothermal Elastic Medium
	Wei J.; Fu L.-Y.; Han T.; Carcione J.M.
发表日期	2020
ISSN	21699313
卷号	125 期号:9
英文摘要	P and SV wave scattering by thermally constrained saturated cracks couples elastic deformation with temperature. We estimate the scattering attenuation and velocity dispersion by aligned fluid-saturated cracks with finite thickness, which are sparsely and randomly embedded in an isothermal and isotropic elastic medium. By incorporating thermoelastic effects into the representation theorem with the non-interaction Foldy approximation, we formulate the dispersion and attenuation of P and SV waves induced by displacement discontinuities across aligned cracks constrained by a thermoelastic boundary condition. The frequency-dependent response as a function of temperature is calculated for various P and SV wave incidence angles. The resulting scattering attenuation and dispersion are compared with those of the conventional aligned-crack model. The examples show that the dissipation increases with increasing temperature, but the scattering is inhibited at a given temperature. The P wave shows a strong sensitivity to temperature along the direction normal to the cracks, whereas the SV wave has an opposite behavior. This theory has the potential to assess the distribution of temperature from seismic attributes. © 2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187597
作者单位	Key Laboratory of Petroleum Resource Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao, China; National Institute of Oceanography and Applied Geophysics (OGS), Trieste, Italy
推荐引用方式 GB/T 7714	Wei J.,Fu L.-Y.,Han T.,et al. Thermoelastic Dispersion and Attenuation of P and SV Wave Scattering by Aligned Fluid-Saturated Cracks of Finite Thickness in an Isothermal Elastic Medium[J],2020,125(9).
APA	Wei J.,Fu L.-Y.,Han T.,&Carcione J.M..(2020).Thermoelastic Dispersion and Attenuation of P and SV Wave Scattering by Aligned Fluid-Saturated Cracks of Finite Thickness in an Isothermal Elastic Medium.Journal of Geophysical Research: Solid Earth,125(9).
MLA	Wei J.,et al."Thermoelastic Dispersion and Attenuation of P and SV Wave Scattering by Aligned Fluid-Saturated Cracks of Finite Thickness in an Isothermal Elastic Medium".Journal of Geophysical Research: Solid Earth 125.9(2020).