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https://doi.org/10.2118/92783-ms

has been cited by the following article:

• TITLE: Elastic Bending Deformation of the Drill Strings in Channels of Curve Wells

  AUTHORS: Nabil Wanas Musa

  KEYWORDS: Curvilinear Drilling, Elastic Bending, Curve Well, Circular Friction, Resistance Forces

  JOURNAL NAME: Modern Mechanical Engineering, Vol.7 No.1, February 6, 2017

  ABSTRACT: The problem about identification of elastic bending deformation of a drill string in a curve wells based on the theory of flexible curved rods and the direct inverse problems of drill string bending in the channels of curvilinear bore-holes is stated. The problem is solved which determines the resistance forces and moments during performing ascending-descending operations in curvilinear bore-holes with trajectories of the second order curve shapes. The sensitivity of the resistance forces relative to geometric parameters of the bore-hole axial line trajectories is analyzed.