| DOI: | 10.1306/08121413151
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| Scopus记录号: | 2-s2.0-84911906694
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| 论文题名: | Natural fractures in shale: A review and new observations |
| 作者: | Gale J.F.W.; Laubach S.E.; Olson J.E.; Eichhubl P.; Fall A.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1588
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| EISSN: | 1558-9318
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| 出版年: | 2014
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| 发表日期: | 2014
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| 卷: | 98, 期:11 | | 起始页码: | 2165
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| 结束页码: | 2216
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| 语种: | 英语
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| Scopus关键词: | Hydraulic fracturing
; Low permeability reservoirs
; Mechanical properties
; Oil shale
; Petroleum reservoir engineering
; Shale
; Shale oil
; Structural geology
; Differential compaction
; Fracture attributes
; Fracture prediction
; Fracture stimulation
; Microseismic events
; Parallel fractures
; Strain accommodations
; Structural setting
; Fracture
; fracture orientation
; gas production
; oil production
; outcrop
; permeability
; reservoir
; seismic source
; shale
; size structure
; stratigraphy
; stress field
; structural geology
; uplift
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | Natural fractures have long been suspected as a factor in production from shale reservoirs because gas and oil production commonly exceeds the rates expected from low-porosity and low-permeability shale host rock. Many shale outcrops, cores, and image logs contain fractures or fracture traces, and microseismic event patterns associated with hydraulicfracture stimulation have been ascribed to natural fracture reactivation. Here we review previous work, and present new core and outcrop data from 18 shale plays that reveal common types of shale fractures and their mineralization, orientation, and size patterns. A wide range of shales have a common suite of types and configurations of fractures: those at high angle to bedding, faults, bed-parallel fractures, early compacted fractures, and fractures associated with concretions. These fractures differ markedly in their prevalence and arrangement within each shale play, however, constituting different fracture stratigraphies-differences that depend on interface and mechanical properties governed by depositional, diagenetic, and structural setting. Several mechanisms may act independently or in combination to cause fracture growth, including differential compaction, local and regional stress changes associated with tectonic events, strain accommodation around large structures, catagenesis, and uplift. Fracture systems in shales are heterogeneous; they can enhance or detract from producibility, augment or reduce rock strength and the propensity to interact with hydraulic-fracture stimulation. Burial history and fracture diagenesis influence fracture attributes and may provide more information for fracture prediction than is commonly appreciated. The role of microfractures in production from shale is currently poorly understood yet potentially critical; we identify a need for further work in this field and on the role of natural fractures generally. Copyright © 2014. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911906694&doi=10.1306%2f08121413151&partnerID=40&md5=6b96d9b31087a7013325cb517f674b62
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13159
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| Recommended Citation: | |
Gale J.F.W.,Laubach S.E.,Olson J.E.,et al. Natural fractures in shale: A review and new observations[J]. AAPG Bulletin,2014-01-01,98(11)
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