| DOI: | 10.1306/02011211010
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| Scopus记录号: | 2-s2.0-84866879164
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| 论文题名: | Damage and plastic deformation of reservoir rocks: Part 1. damage fracturing |
| 作者: | Busetti S.; Mish K.; Reches Z.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1737
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| EISSN: | 1558-9467
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| 出版年: | 2012
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| 发表日期: | 2012
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| 卷: | 96, 期:9 | | 起始页码: | 1687
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| 结束页码: | 1709
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| 语种: | 英语
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| Scopus关键词: | Berea sandstone
; Confining pressures
; Continuum damage
; Damage propagation
; Deformation modes
; Dogbone
; Elastic-Plastic
; Experimental observation
; Field observations
; Finite deformations
; Finite element models
; Four-point
; Fracture network
; Fracture propagation
; Hydro-fracture
; Inelastic strain
; Large deformations
; Localized damage
; Materials libraries
; Numerical tools
; Realistic simulation
; Reservoir rock
; Rock deformation
; Shear failure
; Stiffness degradation
; Yield criteria
; Computer simulation
; Deformation
; Elasticity
; Elastoplasticity
; Finite element method
; Rheology
; Rock mechanics
; Rocks
; Strain hardening
; Tensile strength
; Fracture
; calibration
; damage
; dilation
; elastoplasticity
; finite element method
; fracture mechanics
; hardening
; hydraulic fracture
; kinematics
; numerical model
; plastic deformation
; reservoir rock
; rheology
; sandstone
; shear
; Berea
; Lesotho
; Canis familiaris
|
| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | In this series of studies, we develop a numerical tool for modeling finite deformation of reservoir rocks. We present an attempt to eliminate the main limitations of idealized methods, for example, elastic or kinematic, that cannot account for the complexity of rock deformation. Our approach is to use rock mechanics experimental data and finite element models (Abaqus). To generate realistic simulations, the present numerical rheology incorporates the dominant documented deformation modes of rocks: (1) rock mechanics experimental observations, including finite strength, inelastic strain hardening, strengdi dependence on confining pressure, strain-induced dilation, pervasive and localized damage, and local tensile or shear failure without macroscopic disintegration; and (2) field observations, including large deformation, distributed damage, complex fracture networks, and multiple zones of failure. Our analysis starts with an elastic-plastic damage rheology that includes pressure-dependent yield criteria, stiffness degradation, and fracturing via a continuum damage approach, using the Abaqus materials library. We then use experimental results for Berea Sandstone in two configurations, four-point beam and dog-bone triaxial, to refine and calibrate the rheology. We find that damage and fracturing patterns generated in the numerical models match the experimental features well, and based on these observations, we define damage fracturing, the fracturing process by damage propagation in a rock with elastic-plastic damage rheology. In part 2, we apply this rheology to investigate fracture propagation at the tip of a hydrofracture. Copyright © 2012. The American Association of Petroleum Geologists. All rights reseverd. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84866879164&doi=10.1306%2f02011211010&partnerID=40&md5=2b5e21931a219d2e89e032ad1f950217
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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/13307
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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: | |
Busetti S.,Mish K.,Reches Z.. Damage and plastic deformation of reservoir rocks: Part 1. damage fracturing[J]. AAPG Bulletin,2012-01-01,96(9)
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