Bedding plane-embedded augmented virtual internal bonds for fracture propagation simulation in shale
نویسندگان
چکیده
منابع مشابه
Modeling 3d Hydraulic Fracture Propagation and Thermal Fracturing Using Virtual Multidimensional Internal Bonds
Fracture propagation, especially for fractures emanating from inclined wellbores and closed natural fracture often involves Mode I, Mode II, and at times Mode III fracture pattern simultaneously. In this paper a Virtual Multidimensional Internal Bond (VMIB) model is presented to simulate 3D mixedmode fracture propagation. To represent the contact and friction between fracture surfaces, a threed...
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The objective of this work is to simulate mode II multi-scale fracture propagation in shale by coupling a continuum anisotropic damage model with a Cohesive Zone Model (CZM). The Continuum Damage Mechanics – based Differential Stress Induced Damage (DSID) model is used to represent micro-scale crack evolution. DSID parameters were calibrated against pre-peak points of stress/strain curves obtai...
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Received: August 15, 2016 Revised: January 11, 2017 Accepted: February 14, 2017 Abstract: Background: Since the fragile anisotropy of shale, it is difficult to carry out laboratory experiments of geostress by shale cores. The existing geostress calculation model that is based on the homogeneous hypothesis also cannot meet the accuracy requirement. Therefore, it is necessary to establish the new...
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ژورنال
عنوان ژورنال: Theoretical and Applied Mechanics Letters
سال: 2021
ISSN: 2095-0349
DOI: 10.1016/j.taml.2021.100253