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f Shale Brittleness and Plasticity - Impacts on Borehole Fracturing and Collapse
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 3rd EAGE Shale Workshop - Shale Physics and Shale Chemistry, Jan 2012, cp-275-00011
- ISBN: 978-94-6282-062-3
Abstract
In oil industry jargon, terms like "brittleness" and "plasticity" are often used as qualitative descriptors of failure processes like those occurring during hydraulic fracturing or during borehole collapse. While plasticity is well-defined by the lack of strain reversibility upon stress reversal, brittleness lacks a unique definition.