Buckling of a drill-string in two-sectional bore-holes
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2020.105427
Abstract: Abstract The nature of the phenomena of drill-strings buckling in channels of deep curvilinear bore-holes is essentially complicated by complex combination of acting distributed forces (gravity, contact and friction), large length of the string (leading… read more here.
Keywords: bore hole; geometry; drill string; buckling drill ... See more keywords
Lateral buckling of drill strings revisited: localised “snaking”
Sign Up to like & getrecommendations! Published in 2023 at "Mathematics and Mechanics of Solids"
DOI: 10.1177/10812865231166129
Abstract: The classical lateral buckling of a straight drill string confined within an inclined cylindrical borehole is formulated as a singularly perturbed boundary-value problem which is subsequently explored using asymptotic techniques. In particular, the localised nature… read more here.
Keywords: revisited localised; strings revisited; drill strings; localised snaking ... See more keywords