The interaction of hydraulically induced fractures with pre-existing fractures in shales is of interest to the petroleum industry. Laboratory experiments can help to understand the fracture initiation, propagation, and coalescence behavior. A fundamental first step is to investigate the fracture interaction of a pressurized flaw (artificial crack) with a non-pressurized flaw where the specimens are subjected to a constant uniaxial stress.
Hydraulic Fracture of Opalinus Shale Under Uniaxial Stress: Experiment Design and Preliminary Results
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AlDajani, O. A., Germaine, J. T., and H. H. Einstein. "Hydraulic Fracture of Opalinus Shale Under Uniaxial Stress: Experiment Design and Preliminary Results." Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, Seattle, Washington, June 2018.
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