Flap Valve Float shoe

Product specification is 4 1/2-5/8 PDC dirll or roller roller bit can drill

Application:

Use the flap valve automatic fill slurry shoe, during the casing operation ,the slurry  flow into sleeves automatically reduce the casing time minimize the impact on the floor. Before casting ball  ,and good for circulation anytime it will not advance the case of conversion

Characteristics

1,Product specification 4 1/2″-7 5/8″.

2,in the small dimension sleeves to use this product will reduce the casing significantly when the impact of the formation

3,Product button type currently only API oval buckle

4,When the inclination is larger than 25°needing a falling ball release mechanism.

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5,Significantly reduce role in the formation of emotional stress can shorten the time of casing.

6,Special cut structure make flap valve keep open ,this cut structure of both good seals and easy to cut control

7,PDC drill or roller bit could drill

Main technology index

Function parameter
applicable dimension of sleeves		tools
External diameter	weight	External  diameter	length	Self filling hole	Cycle hole	Diameter of fall ball	Conversion pressure
in	lbs/ft	in	in	in	in	in	psi
5 1/2	17.00-23.00	6.050	10.75	0.810	1.750	1.500	800-600
6 5/8	20.00-32.00	7.390	12.25
7	23.00-38.00	7.660	12.50
7 5/8	26.40-47.10	8.500	12.75

                      

Flap Valve Float shoe