دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The casing float shoe in which is installed by check valve. There are two kinds of ball float shoe: cement and aluminum alloy.

n: see float shoe.

n: The Steel and round nipple with back pressure control valve, installed at the bottom of casing string. Leading casing entering into the wellbore and preventing drill fluid entering into the casing to decrease the weight of casing.

n: See casing float shoe.

n: See casing float shoe.