Show simple item record Ritto, T. G. Escalante, M. R. Sampaio, Rubens Rosales, Marta Beatriz 2017-02-02T21:09:04Z 2013-01
dc.identifier.citation Ritto, T. G.; Escalante, M. R.; Sampaio, Rubens ; Rosales, Marta Beatriz; Drill-string horizontal dynamics with uncertainty on the frictional force; Elsevier; Journal of Sound and Vibration; 332; 1-2013; 145-153
dc.identifier.issn 0022-460X
dc.description.abstract This paper analyzes the dynamics of a horizontal drill-string. In this dynamics, the frictional forces between the column and the borehole are relevant and uncertain. A stochastic model is proposed for the frictional coefficient: a random field with exponential autocorrelation function. In the numerical analysis, the drill-string is modeled using the bar model (tension/compression), and is discretized by means of the finite element method. An oscillatory force (due to mud motor) is imposed on the system and there is a bit–rock interaction as the column moves forward. We propose a new way to measure the efficiency of the process: an output/input power ratio. The resultant random ratio is analyzed, and it turns out that it presents a bimodal characteristic, an unexpected result.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject drill-string dynamics
dc.subject horizontal drilling
dc.subject frictional forces
dc.subject stochastic dynamics
dc.subject uncertainty
dc.subject.classification Ingeniería Mecánica
dc.subject.classification Ingeniería Mecánica
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title Drill-string horizontal dynamics with uncertainty on the frictional force
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2017-02-02T14:06:48Z
dc.journal.volume 332
dc.journal.pagination 145-153
dc.journal.pais Países Bajos
dc.journal.ciudad Ámsterdam
dc.description.fil Fil: Ritto, T. G.. Universidade Federal Do Rio de Janeiro; Brasil
dc.description.fil Fil: Escalante, M. R.. Universidad Tecnologica Nacional. Facultad Regional Concepcion del Uruguay; Argentina. Universidad Tecnologica Nacional. Facultad Regional de Concordia; Argentina
dc.description.fil Fil: Sampaio, Rubens . Pontificia Universidad Catolica Do Rio de Janeiro; Brasil
dc.description.fil Fil: Rosales, Marta Beatriz. Universidad Nacional del Sur. Departamento de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title Journal of Sound and Vibration
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)