Description :

Differential fill-up Float Collar allows 90% casing fill-up during run-in, reducing surge pressures caused by the piston effect of running in restricted I.D. Use of differential collar provides additional buoyancy by allowing only 81% casing fill-up further enhancing work efficiency.

Circulating can be established at any time while running in. Dropping a ball converts the differential valve to a regular back-pressure valve. When the collar and shoe are run together, dropping one ball converts both units. After allowing sufficient time for the ball to reach the equipment conversion can be achieved by applying approximately 600-800 psi of pump pressure (adjustable).

Performance Features

• 90% Casing fill-up during Running In
• Reduce Surge Pressure
• All internal parts are PDC drillable