Drill pipe monitoring and lifetime prediction through simulation based on drilling information

Abstract

An apparatus for drilling a borehole in an earth formation includes: a plurality of drill pipes configured to be coupled together to form a drill string that is configured to convey an earth formation disintegrating device while progressing into the earth formation; a communication medium disposed on the drill string and configured to communicate a signal; and one or more processors. The one or more processors are configured to: receive drilling information; determine a stress distribution along at least a part of the drill string using the drilling information; determine a cumulative fatigue damage of at least a part of one drill pipe in the drill string using the stress distribution; and write the cumulative fatigue damage of the at least a part of one drill pipe to a memory.

Dependencies are inferred from the claim text.