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    Approaching a universal scaling relationship between fracture stiffness and fluid flow (2016)
    Springer Nature
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    Publication Date: 2016-02-14
    Description: Article Fractures in rock can be altered geochemically and deformed under stress, affecting fluid flow rates across many orders of magnitude. Here, the authors present a universal scaling relationship between fluid flow and fracture specific stiffness, which will aid the interpretation of subsurface sites. Nature Communications doi: 10.1038/ncomms10663 Authors: Laura J. Pyrak-Nolte, David D. Nolte
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 2
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    Scaling of fluid flow versus fracture stiffness (2013)
    Wiley
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    Publication Date: 2013-04-18
    Description: [1]  Seismic characterization of fluid flow through fractures requires a fundamental understanding of the relationship between the hydraulic and mechanical properties of fractures. A finite-size scaling analysis was performed on fractures with weakly correlated random aperture distributions to determine the fundamental scaling relationship between fracture stiffness and fracture fluid flow. From computer simulations, the dynamic transport exponent, which provides the power law dependence, was extracted and used to collapse the flow-stiffness relationships from multiple scales into a single scaling function. Fracture specific stiffness was determined to be a surrogate for void area that is traditionally used in percolation studies. The flow-stiffness scaling function displays two exponentially decaying regions above and below the transition into the critical regime where the hydromechanical properties become scale dependent. The transition is governed by the stressed flow paths when the flow path geometry deforms from a sheet-like topology to a string-like topology. The resulting hydro-mechanical scaling function provides a link between fluid flow and the seismic response of a fracture.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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