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

DRILLING JAR

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Identifier
https://posccaesar.org/ontology/15926-4/4.0/DRILLING_JAR
Definition A <DRILLING JAR> is a <DRILLING COMPONENT> that is a mechanical device used in a borehole to deliver an impact load to another downhole component, normally used to free a stuck component.