Abstract
Shale is known as a hydrocarbon source rock and is emerging as a potentially key component of the worldwide energy landscape via the recent development of hydraulic fracturing technique. A fundamental understanding of the fracturing behaviors of intact shale is the basis of any technological innovation aiming at increasing extraction efficiency. Considering the highly heterogeneous and fine-grained nature of shale, investigation and characterization should be conducted at multiple length scales. Through a brief overview of the experimental and computational studies for mechanical characterization of shale at different scales, this study investigates the possibility of integrating experimental and computational characterization research into a unified multiscale framework. Such multiscale framework is needed to predict macroscale shale fracturing behavior from the microscopic events. As preliminary results, an experimental characterization campaign of Marcellus shale at the macroscopic level and a micromechanical discrete model for predicting the mechanical behaviors of anisotropic shale are also presented.
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Li, W., Jin, C., Cusatis, G. (2016). Integrated Experimental and Computational Characterization of Shale at Multiple Length Scales. In: Jin, C., Cusatis, G. (eds) New Frontiers in Oil and Gas Exploration. Springer, Cham. https://doi.org/10.1007/978-3-319-40124-9_12
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