Dynamic Stability of Lateral Vibration of Bottom Hole Assemblies

Guang Hui Zhao; Zheng Liang

doi:10.4028/www.scientific.net/KEM.385-387.809

Paper Titles

An Iterative Algorithm of Hypersingular Integral Equations for Crack Problems
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Observation of the Behavior of Fatigue Cracks in Friction Stir Welded Aluminum Alloy Joints
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An Orientation-Dependent Failure Criterion for FCC Crystals
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Influence of Rolling Reduction on Fatigue Behaviour of AA6016/FeP06 Material Compound
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Dynamic Stability of Lateral Vibration of Bottom Hole Assemblies
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Shape Optimization of Metal Welded Bellows Seal Based on the Turing Reaction-Diffusion Model Coupled with FEM
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Shrinkage Performance and Cracking Resistance Mechanism of Rubberized Lightweight Aggregate Concrete with Polymer
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Delamination of Laminates Governed by Free Edge Interlaminar Stresses Using Interface Element
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On Sensitivity of Thermal Parameters for Concrete Box Girder in the Sunshine
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 385-387Dynamic Stability of Lateral Vibration of Bottom...

Dynamic Stability of Lateral Vibration of Bottom Hole Assemblies

Abstract:

Bottom hole assemblies (BHA) of oil drilling engineering were simplified as simply supported beam, and parametric resonances of BHA in mud drilling and air drilling were studied. Lateral vibration of BHA, which was induced by bit/formation interaction, was described and reduced into Mathieu equation by means of separation of variables and Galerkin method. Modified strained parameter method was adopted in stability analysis. The parametric resonance zones expressed by weight on bit (WOB) are presented here. It is found that drilling method, speed of rotation (SOR), material properties, and length of compression drillstring all can influence parametric resonance zones. So unstable responses can be avoided by adjusting these parameters.