Start Date

8-5-2020 12:00 AM

Document Type

Poster Session

Department

Engineering

Advisor

Mehrdaad Ghorashi, PhD

Abstract

In drilling processes, dynamic vibrations are the leading causes of damages to drilling equipment. This damage can happen on the borehole wall, the drill string, and at the bottom hole assembly. The sources of these vibrations are the dynamic forces applied on the drill bit that develop when driving through various underground geological formations, mainly rock and sediment. As a result, these vibrations traverse the drill string as a cyclic waveform, causing deformations and inevitable fatigue of the drill string. Our goal was to investigate these disturbances through state delay analysis.

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May 8th, 12:00 AM

Vibrational Analysis of a Drill String

In drilling processes, dynamic vibrations are the leading causes of damages to drilling equipment. This damage can happen on the borehole wall, the drill string, and at the bottom hole assembly. The sources of these vibrations are the dynamic forces applied on the drill bit that develop when driving through various underground geological formations, mainly rock and sediment. As a result, these vibrations traverse the drill string as a cyclic waveform, causing deformations and inevitable fatigue of the drill string. Our goal was to investigate these disturbances through state delay analysis.

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