Nonlinear vibration analysis of directional drill string considering effect of drilling mud and weight on bit

Autor:	Farshad Taheran, Vahid Monfared, Saeed Daneshmand, Esmaeil Abedi
Rok vydání:	2016
Předmět:	coupled nonlinear vibration Physics::Instrumentation and Detectors lcsh:Mechanical engineering and machinery Mechanical Engineering drilling mud drill string lcsh:TJ1-1570 General Materials Science stability Computer Science::Databases Physics::Geophysics
Zdroj:	Journal of Vibroengineering, Vol 18, Iss 2, Pp 1280-1287 (2016)
ISSN:	2538-8460 1392-8716
DOI:	10.21595/jve.2015.16480
Popis:	In this paper a nonlinear dynamic model for drill string in inclined well drilling is developed. Effects of drilling mud flow rate, weight on bit, angular velocity along with viscous damping on stability and vibration of the drill string are studied. Findings indicate the nonlinear effects are significant on the results. The effects of drilling mud flow rate and weight on bit on the natural frequencies and time responses are evaluated. Enhancement of drilling mud flow rate results in decreasing of natural frequencies and vibrational amplitude, while increasing the weight on bit, leads to decrease of the natural frequencies and increase the vibrational amplitude.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28dde6d13f414520086a756b3628ec6e https://doi.org/10.21595/jve.2015.16480 Zobrazit plný text záznamu