Measurement and simulation of nonlinear drillstring stick–slip and whirling vibrations

• Published in: International journal of non-linear mechanics Vol. 125; p. 103528
• Main Authors: Zhang, He, Di, Qinfeng, Li, Ning, Wang, Wenchang, Chen, Feng
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.10.2020; Elsevier BV
• Subjects: Acceleration; Angular velocity; Computer simulation; Contact angle; Coupling; Coupling effects; Diamond drills; Diamond tools; Drill bits; Drilling; Drillstrings; Dry friction; Field downhole measurement; Finite element method; Mathematical models; Nonlinear drillstring vibrations; Oscillations; Parameters; Polycrystalline diamond; Slip; Ultra-deep wells; Finite element method; Ultra-deep wells; Nonlinear drillstring vibrations; Field downhole measurement; Coupling effects
• ISSN: 0020-7462; 1878-5638
• DOI: 10.1016/j.ijnonlinmec.2020.103528

When drilling ultra-deep wells with polycrystalline diamond compact (PDC) bits, the drillstring suffered from severe vibrations that were responsible for the premature failure of drillstring components and the inefficient drilling process. In this paper, a field experiment was conducted in an ultra-...