About: bottom hole assembly

Premodifier: bottom hole
Head noun: assembly

Same concepts
http://dbpedia.org/resource/Bottom_hole_assembly

Broader concepts

label	provenance	confidence
downhole equipment	isap:183046909	0.722779

Narrower concepts

label	provenance	confidence
heavy weight drill pipe	isap:460486583	0.789805
assembly	isap:60301347	0.448602
tool	isap:454568455	0.245673