中文版 | English
Title

基于非结构网格有限元的三维井地电阻率法任意各向异性正演模拟

Alternative Title
Arbitrarily anisotropic forward modeling of the 3D borehole-to-surface resistivity method based on unstructured grid finite element
Author
Publication Years
2023
DOI
Source Title
ISSN
0001-5733
Volume66Issue:5Pages:2201-2218
Abstract
地层介质的电各向异性增加了井地电阻率法响应的复杂性,开展基于电各向异性介质模型的井地电阻率法响应规律研究对于正确解释各向异性显著地区的观测数据特征至关重要.针对垂直线源井地电阻率法的任意各向异性响应模拟问题,本文提出了一种基于非结构网格有限元三维正演算法,通过引入3×3的对称正定张量来表征任意各向异性的电导率,采用非结构四面体网格有限元方法来离散电位的边值问题,通过将垂直线源等效为一系列点源问题,进而实现了任意各向异性介质中井地电阻率法的高效数值计算.通过与三个地电模型的解的对比,验证了本文数值解算法的精度和有效性.针对线源远离和垂直穿过异常体的两类模型,分别考察了当围岩或异常体为各向异性介质时的井地视电阻率响应特征.结果表明,对于各向异性地层,围岩和异常体的主轴电阻率值和旋转角均会对井地视电阻率的幅值及分布产生显著的影响.研究结果对于提高井地电阻率法的认识和资料解释水平具有重要的理论和实际意义.
Keywords
URL[Source Record]
Indexed By
Language
Chinese
SUSTech Authorship
Others
Funding Project
42274087:国家自然科学基金 ; 41874119:国家自然科学基金
WOS Research Area
Geochemistry & Geophysics
WOS Subject
Geochemistry & Geophysics
WOS Accession No
WOS:000980837100030
Publisher
ESI Research Field
GEOSCIENCES
Data Source
WanFang
WanFangID
dqwlxb202305030
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/571338
DepartmentDepartment of Earth and Space Sciences
Affiliation
1.油气资源与勘探技术教育部重点实验室(长江大学),武汉 430100
2.南方科技大学地球与空间科学系,深圳 518055
3.武汉大学中国南极测绘研究中心,武汉 430072
Recommended Citation
GB/T 7714
熊治涛,唐新功,李丹丹. 基于非结构网格有限元的三维井地电阻率法任意各向异性正演模拟[J]. 地球物理学报,2023,66(5):2201-2218.
APA
熊治涛,唐新功,&李丹丹.(2023).基于非结构网格有限元的三维井地电阻率法任意各向异性正演模拟.地球物理学报,66(5),2201-2218.
MLA
熊治涛,et al."基于非结构网格有限元的三维井地电阻率法任意各向异性正演模拟".地球物理学报 66.5(2023):2201-2218.
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