/ RDLs / ISO 15926 Part 4: Core reference data - Edition 4 / UNDERREAMER

UNDERREAMER

Class
Identifier
https://posccaesar.org/ontology/15926-4/4.0/UNDERREAMER
Definition A <UNDERREAMER> is a <BOREHOLE REAMER> with hydraulically actuated, expandable arms that are used to enlarge the borehole at a specific interval in a well.