A New Analytical Model on Lateral Vibration and Impact of Drill String - Choice of Safe and Fast Drilling

Wei Liu; Ying Cao Zhou; Qing Zhao

doi:10.4028/www.scientific.net/AMM.29-32.2350

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 29-32A New Analytical Model on Lateral Vibration and...

A New Analytical Model on Lateral Vibration and Impact of Drill String - Choice of Safe and Fast Drilling

Abstract:

The severe lateral vibration and impact of drill string will not only cause the damage of drill string but also have bad effects on the quality of directional drilling operation. It is difficult to control lateral vibration amplitude and impact intensity even with advanced measurement apparatus while drilling. So it is feasible to use a theoretic method to analyze and predict lateral vibration of drill string in order to adjust and optimize drilling parameters in real-time. On the basis of beam-column series and spring-concentrated mass model, a new analytical model is established to realize the control of lateral vibration and impact by controlling some key factors, such as under-gauge stabilizer, initial phase angle and initial deformation, WOB (weight on bit) and ROB (rotation of bit).

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Periodical:

Applied Mechanics and Materials (Volumes 29-32)

Pages:

2350-2355

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.29-32.2350

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Online since:

August 2010

Authors:

Wei Liu, Ying Cao Zhou, Qing Zhao

Keywords:

Angular Frequency, Beam-Column Series, Initial Deformation, Initial Phase Angle, Lateral Impact, Lateral Vibration, Vibration Amplitude

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