Metaglossary.com - Definitions for "{term}"

Keywords: bituminous, scraping, aggregate, chipping, roofing

The process of removing the roofing aggregate and most of the bituminous top coating by scraping and chipping.

Keywords: hoisting, bore, drill, pipe, strikes

Hoisting the drill pipe and allowing it to free-fall so the drill bit strikes the bottom of the well bore with considerable force.