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DOI | 10.1029/2018GL077931 |
Seismic Shear Wave Anisotropy in Cracked Rocks and an Application to Hydraulic Fracturing | |
Xu, Song1,2; Tang, Xiaoming1; Torres-Verdin, Carlos2; Su, Yuanda1 | |
2018-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:11页码:5390-5397 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Subsurface rocks often contain cracks/fractures with various orientations: aligned, conjugated, and randomly oriented, giving rise to different types of seismic anisotropy. We develop an effective approach for the elastic wave-scattering theory to accurately calculate anisotropic properties in the presence of single and/or multiple fracture sets. Two specific models, the equivalent aligned crack system and the equivalent orthogonal crack system, are considered for the calculations. The equivalent aligned crack system generates significant anisotropy, while the equivalent orthogonal crack system exhibits weak anisotropy due to the interaction of cracks with different orientations. The theory is applied to interpret acoustic anisotropy measurements acquired in hydraulically fractured formations, where theoretical predictions and measurements are in good agreement. Plain Language Summary Cracks/fractures in rocks and their alignment directions can strongly affect the elastic wave velocities and anisotropy. The effective elastic-wave scattering theory of this study can accurately compute the anisotropy elastic properties in the presence of single and/or multiple fracture sets. Particularly useful is the ability to handle multiple crack sets, which allows for analyzing the effect of conjugated fractures encountered in real rocks. The results can be used to provide an effective method for interpreting elastic-wave anisotropy data from seismic (e.g., borehole acoustic) measurements. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436249900020 |
WOS关键词 | ELASTIC-MODULI ; TRANSVERSE ISOTROPY ; ATTENUATION ; DISPERSION ; VELOCITY ; MEDIA |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/28634 |
专题 | 气候变化 |
作者单位 | 1.China Univ Petr, Sch Geosci, Qingdao, Peoples R China; 2.Univ Texas Austin, Petr & Geosyst Engn, Austin, TX 78712 USA |
推荐引用方式 GB/T 7714 | Xu, Song,Tang, Xiaoming,Torres-Verdin, Carlos,et al. Seismic Shear Wave Anisotropy in Cracked Rocks and an Application to Hydraulic Fracturing[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(11):5390-5397. |
APA | Xu, Song,Tang, Xiaoming,Torres-Verdin, Carlos,&Su, Yuanda.(2018).Seismic Shear Wave Anisotropy in Cracked Rocks and an Application to Hydraulic Fracturing.GEOPHYSICAL RESEARCH LETTERS,45(11),5390-5397. |
MLA | Xu, Song,et al."Seismic Shear Wave Anisotropy in Cracked Rocks and an Application to Hydraulic Fracturing".GEOPHYSICAL RESEARCH LETTERS 45.11(2018):5390-5397. |
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