مقال بحثي وصول مفتوح
Design of a Testing Facility for Investigation of Drill Pipes Fatigue Failure
Drillstring and down-hole tool failure usually results from failing to control one or more of the vibration mechanisms. The solution starts with the ability to measure different modes of vibration, hence identifying different vibration mechanisms. Lateral, torsion and axial are vibration modes that take place when dril …