Bai-Lin Wu
Commonwealth Scientific and Industrial Research Organisation
Ultimate tensile strengthGeologyCurvatureBreakoutHydraulic fracturingFracture (geology)MechanicsRadiusStress (mechanics)Wellbore
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#5Bai-Lin Wu (CSIRO: Commonwealth Scientific and Industrial Research Organisation)
Abstract null null In this paper, the DDM numerical method is used to calculate the initiation pressure and initiation length of the circular wellbore, or the further elongated and non-elongated ‘dog-ear’ breakout wellbore under different sizes and different stress states. An analysis is made about the transfer of the fracture initiation point for the further elongated breakout wellbore and its possible impacts. The numerical results show that for small-size wellbore ((Rwσt2)/KIC2 6.4), the init...
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