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A Study on the Interaction of Segmented Hydraulic Fractures  

Sim Young-Jong (Smart Infra-Structure Technology Center, KAIST)
Kim Hong-Taek (Dept. of Civil Engrg., Hongik University)
Publication Information
Journal of the Korean Geotechnical Society / v.21, no.9, 2005 , pp. 45-52 More about this Journal
Abstract
Recent observations based on geological evidence and laboratory tests confirm that complex segmentation of hydraulic fractures is common phenomena. It is expected that the segmentation causes mechanical interaction between the fractures and affects fracture opening and measured net pressure. In this study, therefore, the opening of the fractures is computed using boundary collocation method to evaluate the mechanical interaction quantitatively. Also, improved boundary collocation method is suggested to evaluate the displacement of the fracture wall accurately and the reliability of this method is confirmed by comparing with that of the finite element method.
Keywords
Boundary collocation method; Displacement; Hydraulic fracture; Mechanical interaction; Opening; Segmentation;
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