Core discing characteristics and mitigation approach by a novel developed drill bit in deep rocks
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DOI: 10.1007/s11771-020-4512-x
Abstract: Core discing often occurs in deep rocks under high-stress conditions and has been identified as an important characteristic for deep rock engineering. This paper presents the formation mechanism of core discing firstly. Then, the interaction… read more here.
Keywords: deep rocks; drill bit; core discing; discing characteristics ... See more keywords
Numerical analyses of mesh size effects on core discing
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-020-05389-5
Abstract: Although the nonlinear numerical methods to study core discing mechanisms have their merits in terms of linear elastic models, the effects of mechanical parameters and mesh size in numerical simulations still have limits on the… read more here.
Keywords: discing numerical; size effects; mechanical parameters; core discing ... See more keywords