Barnhoorn, Auke; Cox, Stephen; Robinson, David; Senden, Timothy
Brittle experimental deformation on dolomite rocks shows for the first time the difference in growth of fracture networks by ordinary percolation and invasion percolation processes. Stress-driven fracture growth, in the absence of fluid pressure, is an ordinary percolation process characterized by distributed nucleation and growth of microfractures, which coalesce with increasing strain to form a connected fracture network. Fluid pressure-driven fracture growth is more akin to an invasion...[Show more]
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