中文版 | English
Title

Dynamic SV-Wave Signatures of Fluid-Saturated Porous Rocks Containing Intersecting Fractures

Author
Corresponding AuthorGuo, Junxin
Publication Years
2022-08-01
DOI
Source Title
ISSN
2169-9313
EISSN
2169-9356
Volume127Issue:8
Abstract

Detecting fracture intersections is crucial for understanding rock hydraulic properties. For this purpose, we study the dynamic SV-wave signatures of fluid-saturated porous rocks containing intersecting fractures. A theoretical model is derived using the dynamic Biot's poroelasticity equations. Using this model, we analyze the features of SV-waves and compare to those of previously studied P-waves. The results show that the dispersion and attenuation of SV-waves caused by elastic scattering and FF-WIFF (Fracture-Fracture Wave-induced Fluid Flow) have a similar dependence on properties of intersecting fractures and fluid as those of P-waves. However, the FB-WIFF (Fracture-Background Wave-induced Fluid Flow) causes much smaller dispersion and attenuation for SV-waves than for P-waves. In particular, such dispersion and attenuation of SV-waves are negligibly small for the orthogonally intersecting fractures regardless of wave incidence angles. In addition to the dispersion and attenuation, the WIFF and elastic scattering also greatly affect the anisotropy properties, which gives rise to frequency-dependent velocity and attenuation anisotropies for both SV- and P- waves. Such anisotropy properties are sensitive to fracture intersection angles and are quite different between SV- and P- waves. These complementary features of SV- and P- waves provide the basis for fracture intersection detection using the combined features of these two waves. By comparing our model to the known results for the limiting cases, we validate our model.

URL[Source Record]
Indexed By
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[
WOS Research Area
Geochemistry & Geophysics
WOS Subject
Geochemistry & Geophysics
WOS Accession No
WOS:000839050000001
Publisher
ESI Research Field
GEOSCIENCES
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:1
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/382546
DepartmentDepartment of Earth and Space Sciences
Affiliation
1.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
2.Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology, Southern University of Science and Technology, Shenzhen, China
3.Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, China
4.National Engineering Research Center of Offshore Oil and Gas Exploration, Beijing, China
5.Centre for Exploration Geophysics, Curtin University, Perth, WA, Australia
First Author AffilicationSouthern University of Science and Technology;  Department of Earth and Space Sciences
Corresponding Author AffilicationSouthern University of Science and Technology;  Department of Earth and Space Sciences
Recommended Citation
GB/T 7714
Guo, Junxin,Gurevich, Boris,Chen, Xiaofei. Dynamic SV-Wave Signatures of Fluid-Saturated Porous Rocks Containing Intersecting Fractures[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2022,127(8).
APA
Guo, Junxin,Gurevich, Boris,&Chen, Xiaofei.(2022).Dynamic SV-Wave Signatures of Fluid-Saturated Porous Rocks Containing Intersecting Fractures.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,127(8).
MLA
Guo, Junxin,et al."Dynamic SV-Wave Signatures of Fluid-Saturated Porous Rocks Containing Intersecting Fractures".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 127.8(2022).
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Guo_2022_Dynamic SV‐(2422KB) Restricted Access--
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