/ RDLs / ISO 15926 Part 4: Core reference data - Edition 4 / KELLY SAVER SUB

KELLY SAVER SUB

Class
Identifier
https://posccaesar.org/ontology/15926-4/4.0/KELLY_SAVER_SUB
Definition A <KELLY SAVER SUB> is a <DRILL STEM SUB> that is made up onto the bottom of the kelly to protect the pin end of the kelly from wear during make-up and break-out operations.