Everything for Oilwell Cementing
Type B Basket Cementing Shoe The IRI Type B Basket Cementing Shoe of casing is employed as:
The Industrial Rubber Type B Shoe is an economical way to perform its special functions as described below:
The shoe is made up on the casing string with the basket closed, and it is run where the casing is to be cemented. The ball is dropped and it gravitates to the seat inside the piston.
Tripping Ball Opens the Cementing Ports
The pump pressure is increased to approximately 400 psi and the piston slides downward, opening up the cementing ports. Pressure inside the casing forces the petal retainer upward, releasing the basket petals. The basket petals expand outward and press against the wall of the hole as the cement flows out of the ports and into the rubber liner. The cement continues to fill the basket and proceeds upward into the annulus over the basket.
Flapper Valve Seals Back Pressure
After the cementing is completed, the flapper valve closes and seals to prevent the backflow of fluids into the casing.
It is advisable to run Cementing Baskets above the tool to support the cement column.