气候变化领域集成服务门户(CCPortal): Analysis of Spatially Distributed Fracture Attributes: Normalized Lacunarity Ratio

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DOI	10.1029/2019JB018350
	Analysis of Spatially Distributed Fracture Attributes: Normalized Lacunarity Ratio
	Roy A.; Perfect E.; Mukerji T.
发表日期	2021
ISSN	21699313
卷号	126 期号:2
英文摘要	Most fracture data analysis techniques for attributes such as dip and aperture, treat the attributes independently of their respective spatial locations. A power-law cumulative frequency for fracture apertures, for example, tells us nothing about their spatial distribution. Lacunarity is a technique for analyzing multi-scale binary and non-binary data and is ideally suited for analysis that relates an attribute (e.g., aperture) to its spatial distribution. In a previous study, we showed that scale-dependent heterogeneity of fracture spacing can be analyzed using lacunarity in order to identify whether fractures occur in clusters. To determine if such clusters contain the largest fractures that control fluid flow through a fracture network, it is imperative that size attribute data be integrated with information about fracture spacing. Here we introduce the novel concept of lacunarity ratio (LR), which is the lacunarity of a given non-binary data set normalized to the lacunarity of its random counterpart. This technique can delineate the relationship between attributes and spatial clustering by determining scale-dependent changes in persistence and anti-persistence. LR is implemented to test if large fractures are statistically found within fracture clusters or if they are randomly distributed at a given scale of observation. The technique is then applied to five different data sets with spacing values together with aperture, length and dip values respectively. The LR-technique thus developed can help in identifying the occurrence of large or steep fractures with respect to fracture clusters, which in turn, can help improve modeling strategies. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	aperture; fracture cluster; lacunarity; persistent-antipersistent; scale-dependent
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/187392
作者单位	Centre of Excellence in Petroleum Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India; Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN, United States; Department of Energy Resources Engineering, Stanford University, Stanford, CA, United States
推荐引用方式 GB/T 7714	Roy A.,Perfect E.,Mukerji T.. Analysis of Spatially Distributed Fracture Attributes: Normalized Lacunarity Ratio[J],2021,126(2).
APA	Roy A.,Perfect E.,&Mukerji T..(2021).Analysis of Spatially Distributed Fracture Attributes: Normalized Lacunarity Ratio.Journal of Geophysical Research: Solid Earth,126(2).
MLA	Roy A.,et al."Analysis of Spatially Distributed Fracture Attributes: Normalized Lacunarity Ratio".Journal of Geophysical Research: Solid Earth 126.2(2021).