A Review Dynamic Vibration on Drill String in Drilling Operation

Abstract

<jats:p>For decades, researchers have investigated the phenomenon of vibrations in drilling activities. One of the interesting things is the vibration in the drillstring. Vibration might be caused by Interfere with each other between the drilling mud and drilling string, contact forces between the drillstring and wellbore, and interfere with each other between bit and wellbore that can ruin the drilling equipment, the drillstring and/or the stabilizers. This paper presents several experiments in different methods to predict vibrations of drill string in the drilling operation. There are three types of vibration in drilling operation. First, axial vibration generated from interaction between bottom hole and bit. Second, Torsional vibration that excited from resonance of drill collar, bit chatter, stick slip between formation and bit and modal coupling. Third, lateral vibration that excited from interaction between formation and bit, imbalance of mass, whirl of bit, and from force of fluid around drill string. One or whole type of these vibration can vibrate the drillstring and it result damage of drillstring as reperesent by decrease in rate of penetration or damage of bit. In this paper, we will compare several methods to predict deflection, natural frequencies, and trajectory or orbital during impact for finite element method, differential quadrature method, and multibody dynamic method. Result show that all method can be used for calculating deflection, Finite element method and differential quadrature method for account natural frequencies, multi dynamic method for calculate trajectory during impact. However, for simple method to calculate or predict vibration used Differential Quadrature method. The future work will involve investigation on vibration in drillstring with combine several method</jats:p>

Minimizing Drill-String-Induced Wellbore Instability

“…Fig.4-Rate of penetration variation with input energy at different stages of drilling(Dupriest 2006) Axial Vibrations Axial vibrations are longitudinal vibrations that happen because of the bit-formation interaction. Bit bounce is the most acute representation of axial vibrations, where the bit loses its contact with the formation bottom due to resonance in the axial direction and cause drill bit bounce, which damages the BHA and increases NPT(Afriansyah and Basri 2019;Clausen et al 2014;Dykstra 1996;Ghasemloonia et al 2015;Li et al 2022;Paslay and Bogy 1963). Axial vibration is most common in vertical boreholes while drilling hard formations, and it can be detected at the surface by WOB variations.…”