ANALYSIS OF DYNAMIC BEHAVIOR OF FE MODEL OF DRILLSTRING-WELLBORE CONTACT WITH IMPROVED CONTACT MODEL

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MOHAMMADZADEH MAZIAR; GHAZAVI MOHAMMAD REZA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:11 Page(s): 185-194

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Title

ANALYSIS OF DYNAMIC BEHAVIOR OF FE MODEL OF DRILLSTRING-WELLBORE CONTACT WITH IMPROVED CONTACT MODEL

Author(s)

MOHAMMADZADEH MAZIAR | GHAZAVI MOHAMMAD REZA | Issue Writer Certificate

Keywords

ANALYSIS OF DYNAMIC BEHAVIORQ2

DRILLSTRINGQ2

NON-LINEAR FE MODELQ2

Abstract

Vibration of DRILLSTRING is the most important factor of its destruction and reduction in drilling operations efficiency. One of the main causes of excessive vibration of DRILLSTRING is DRILLSTRINGwellbore contact, therefore DRILLSTRING-wellbore contact has been studied in several researches. Indeed the contact behavior of DRILLSTRING and wellbore is of great concern to drilling companies in the oil and gas exploration industries. In this research, dynamic behavior and vibration of nonline ar finite element model of a DRILLSTRING in contact with wellbore, has been investigated. By considering total length of DRILLSTRING, a three-dimensional timoshenko beam element is employed. In addition the geometric stiffening effect including nonlinear terms, the added fluid mass and the contact between DRILLSTRING and borehole wall has been considered using improved contact model with a more complete model than previous studies, that the stiffeness of contact determined form energy balance relations. The equation of motion of DRILLSTRING obtained using energy approach and lagrange’s equations and full order equations are used to drive the results. Coupling between various vibrations has been tested and the effects of recent model in ANALYSIS OF DYNAMIC BEHAVIOR and vibration of DRILLSTRING have been evaluated.

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APA: Copy

MOHAMMADZADEH, MAZIAR, & GHAZAVI, MOHAMMAD REZA. (2015). ANALYSIS OF DYNAMIC BEHAVIOR OF FE MODEL OF DRILLSTRING-WELLBORE CONTACT WITH IMPROVED CONTACT MODEL. MODARES MECHANICAL ENGINEERING, 14(11), 185-194. SID. https://sid.ir/paper/179518/en

Vancouver: Copy

MOHAMMADZADEH MAZIAR, GHAZAVI MOHAMMAD REZA. ANALYSIS OF DYNAMIC BEHAVIOR OF FE MODEL OF DRILLSTRING-WELLBORE CONTACT WITH IMPROVED CONTACT MODEL. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(11):185-194. Available from: https://sid.ir/paper/179518/en

IEEE: Copy

MAZIAR MOHAMMADZADEH, and MOHAMMAD REZA GHAZAVI, “ANALYSIS OF DYNAMIC BEHAVIOR OF FE MODEL OF DRILLSTRING-WELLBORE CONTACT WITH IMPROVED CONTACT MODEL,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 11, pp. 185–194, 2015, [Online]. Available: https://sid.ir/paper/179518/en

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