دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see drill pipe float.

n: refer to”drill pipe flot“

the primary, bottom hole valve in the float collar or shoe that allow the casing to self fill while running and allows the cement to pass into the annulus but helps prevent cementing U-tubing after the job. Drillable and subject to erosion wear.