دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a pyroclastic deposit hardened by the action of heat, pressure from overlying material, and hot gases.

n: the hole made by the drilling bit, which can be open, cased, or both. Also called borehole, hole, or wellbore.

n: The filtrate and clay of drilling fluid intruding into the formation in drilling and completion,then degrade the permeability and production capacity.

n: The cave in the wellbore caused by overcut.