A multiscale model for wave propagation in double-porosity media

IF 4.2 2区环境科学与生态学 Q1 WATER RESOURCES

Advances in Water Resources Pub Date : 2025-09-02 DOI:10.1016/j.advwatres.2025.105107

Yonggang Kang, Xiu'e Zhang

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引用次数: 0

Abstract

Wave-induced fluid flow (WIFF) at different scales is regarded as a major cause of wave dispersion and attenuation in heterogeneous porous reservoirs. WIFF refers to the fluid flow relative to the solid induced by the fluid pressure gradients created by a passing wave within the fluid phase. According to the length scales of the pressure gradient, WIFF can be classified into macro-, meso‑, and microscopic flow. Seismic exploration, acoustic logging, and ultrasonic measurement use the elastic waves in the seismic frequency band (about 1 ∼ 10²Hz), acoustic frequency range (about 10⁴Hz), and ultrasonic frequency range (about 10⁶Hz), respectively. The single-scale model for wave propagation only includes a single-scale WIFF mechanism and can only model strong dispersion and attenuation in a frequency range. In addition, these technologies in different frequency ranges often give mismatched characteristics of the porous reservoirs. In this paper, we develop a multiscale model simultaneously including the macro-, meso‑, and microscopic WIFF mechanisms for fluid-saturated double-porosity media. Based on the calculation results, the effects of the multiscale WIFF on dispersion and attenuation characteristics are investigated. The calculation results show that the multiscale model is suitable for modelling the strong wave dispersion and attenuation over the whole frequency range. Based on the multiscale model, seismic exploration data, acoustic logging data, and ultrasound measurement data of rock samples can be effectively linked and calibrated.

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双孔隙介质中波传播的多尺度模型

不同尺度的波致流体流动（WIFF）被认为是非均质多孔储层中波频散和衰减的主要原因。WIFF是指流体相内通过波产生的流体压力梯度所引起的流体相对于固体的流动。根据压力梯度的长度尺度，射流可分为宏观流、中观流和微观流。地震勘探、声波测井和超声波测量分别利用地震频带（约1 ~ 102Hz）、声波频率范围（约104Hz）和超声波频率范围（约106Hz）的弹性波。波传播的单尺度模型只包括单尺度WIFF机制，并且只能模拟一个频率范围内的强色散和衰减。此外，这些技术在不同频率范围内往往会给出不匹配的多孔储层特征。在本文中，我们同时建立了一个多尺度模型，包括流体饱和双孔隙介质的宏观、中观和微观WIFF机制。在计算结果的基础上，研究了多尺度WIFF对频散和衰减特性的影响。计算结果表明，该多尺度模型适用于模拟整个频率范围内的强波频散和衰减。基于多尺度模型，可以有效地将地震勘探数据、声波测井数据和岩样超声测量数据进行关联和标定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Water Resources 环境科学-水资源

CiteScore

9.40

自引率

6.40%

发文量

171

审稿时长

36 days

期刊介绍： Advances in Water Resources provides a forum for the presentation of fundamental scientific advances in the understanding of water resources systems. The scope of Advances in Water Resources includes any combination of theoretical, computational, and experimental approaches used to advance fundamental understanding of surface or subsurface water resources systems or the interaction of these systems with the atmosphere, geosphere, biosphere, and human societies. Manuscripts involving case studies that do not attempt to reach broader conclusions, research on engineering design, applied hydraulics, or water quality and treatment, as well as applications of existing knowledge that do not advance fundamental understanding of hydrological processes, are not appropriate for Advances in Water Resources. Examples of appropriate topical areas that will be considered include the following: • Surface and subsurface hydrology • Hydrometeorology • Environmental fluid dynamics • Ecohydrology and ecohydrodynamics • Multiphase transport phenomena in porous media • Fluid flow and species transport and reaction processes