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Showing 1 to 4 of 4 for “"Borehole Breakout"”.
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Numerical modeling of mixed mode multiple crack propagation and its application to the simulation of nonlinear rock deformation and borehole breakout
… of weaknesses in the initial microstructure. Borehole breakout is the process by which portions of a borehole wall fracture or spall when subjected to compressive stresses. Studies of borehole breakout in the past twenty years include experiments, field studies, and numerical modeling. With …
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Orientation of the maximum horizontal stress (SHmax) in the Orange basin and Outeniqua sub-basins of South Africa : neotectonic implications
… offshore provide an opportunity to utilise the borehole breakout technique to derive quality SHmax orientation data. In collaboration with the World Stress Map Project (WSM), and utilising borehole logs provided by the Petroleum Agency South Africa (PASA), training and software was provided to …
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Stress Estimation From Borehole Scans For Prediction Of Excavation Overbreak In Brittle Rock
… of continuously predicting stress along a borehole through the back analysis of borehole breakout and how this same approach could be employed to predict excavation overbreak. KGHM’s Victoria Project in Sudbury, Canada, was the location of data collection, which firstly involved site …
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Borehole Breakouts in Transversely Isotropic Posidonia Shale
Borehole instabilities are frequently encountered when drilling through finely laminated, organic rich shales (Økland and Cook, 1998; Ottesen, 2010; etc.); such instabilities should be avoided to assure a successful exploitation and safe production of the contained unconventional hydrocarbons. …