Axial-Force Transfer of Buckled Drillpipe in Deviated Wells

摘要

Axial-force transfer is an issue in deviated wells where friction and budding phenomena take place. The general perception in the industry is that once drillpipe exceeds conventional buckling criteria, axial force cannot be transferred downhole. The full-length paper shows that, even though buckling criteria are exceeded, axial-force transfer still could be good if drillpipe is in rotation.