Float shoe description:
when landing the casing, the drill fluid have no resistance to float shoes.
The pressure of circulating mud make the valve head down a displacement, the disc of valve rod's end will fall off
automatically; after stop pumping, the valve press the valve seat upwards under the action of spring, the float valve
becomes one-way valve. So that can pump the drilling fluid and cement slurry into it from up to down, but the fluid
in the casing or outside casing annulus can't be return to prevent from back flow.
Features |
|
This float shoe is available in 4 1/2-in and larger casing sizes. | |
The valve is capable of withstanding long periods of circulation. | |
The float shoe can withstand high back pressure. | |
The valve can be used in high temperature condition. | |
PDC or rock bit drillable. | |
All premium threads are available. | |
Specification(in) | O.D.(mm) | Total length(mm) | I.D. (mm) | Min. Dia.(mm) | Conn Type | Affordable strength of back-pressure(Mpa) | |
Float Collar | 5 | 141.30 | 500 | 110 | 50 | 5 BCSG | 35 |
5 1/2 | 153.67 | 530 | 112 | 55 | 5 1/2BCSG | 35 | |
7 | 194.46 | 586 | 162.5 | 77 | 7 BCSG | 35 | |
9 5/8 | 270 | 720 | 225 | 77 | 9 5/8 BCSG | 35 | |
13 3/8 | 365 | 720 | 319 | 77 | 133/8 BCSG | 35 | |
20 | 533.4 | 720 | 475 | 77 | 20 BCSG | 35 | |
Float Shoe | 5 | 140.30 | 495 | 110 | 50 | 5 BCSG | 35 |
5 1/2 | 153.67 | 514 | 122 | 55 | 5 1/2 BCSG | 35 | |
7 | 194.46 | 533 | 162.5 | 77 | 7 BCSG | 35 | |
9 5/8 | 269.88 | 550 | 225 | 77 | 9 5/8 BCSG | 35 | |
13 3/8 | 339.7 | 550 | 319 | 77 | 133/8 BCSG | 35 | |
20 | 534 | 652 | 475 | 77 | 20 BCSG | 35 | |
