دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: to perforate the well with a column of fluid in the well bore, which exerts less pressure on bottom than the formation does, to cause formation fluids to flow into the wellbore immediately after the casing is perforated. The method is also called reverse-pressure perforating. Its purpose is to force debris in the perforation to flow into the wellbore and not restrict flow within the perforation.

n: see perforate underbalanced.

n: see perforating with negative pressure.