Differential-Fill Float Equipment allows fluid to be metered into the casing string while being lowered setting depth. It allows the casing string to be filled to approximately 85% of casing volume before the differential actuated flapper valves close off upward flow into the casing string. When more than one valve is run in the string, it allows the casing to be filled to 81% of the casing volume.
Created by: KHC Creative