API standard cementing tool float collar and float shoe for casing pipe
1. Description
The float shoe which is connected at the end of casing string functions as guide or back pressure valve. It is a kind of casing shoe which can produce buoyancy. With the advantages of high temperture resistance, good sealing feaure and easy connection, it can be used to replace guide shoe. It can be not only used in the unclassified technical casing, oil layer casing, but also in deep well, extra-deep well and special technology well.
Float collar is installed on the casing and up the float shoe. Like float shoe, it also provide buoyancy to the casing string when it's lowered, reducing the load on the drilling rig. A build-in check valve provides buoyancy to the casing string also prevents cement from re-entering the casing after it's displaced. It's a receptacle to cement plug.
Features:
1. All inner parts are made of easily drillable aluminum alloy.
2. The device can be connected directly to the casing of the same type.
3. Reliable back-pressure leak proof structure, enable grout or slurry flow with less resistance.
4. Valve seat and valve disk can effectively prevent grout from flowing back.
5. Non-rotating landing plate is available on request.
6. Either PDC or rock bit drillable.
Float shoe is attached on the casing bottom and provide buoyancy to the casing string while it's lowered, reducing the load on the drilling rig. The round nose guides the casing away from ledges and obstructions in the well bores as the casing is lowered. A build-in check valve provides buoyancy to the casing string also prevents cement from re-entering the casing after it is displaced.
2. Fetures
High strength design ensures high pressure bump and back flow resistance;
Withstands long periods of circulation;
Automatic fill-up, saves considerable running-in time of casing;
Special non-rotational groove design ensures cementing plugs dilled out quickly;
It is economically priced.
3. Specifications
1) All inner parts are made of easily drillable aluminum alloy
2) The device can be connected directly to same type casing
3) Reliable back-pressure leak proof structure, enable grout or slurry flow with less resistance
4) Valve seat and valve disk can effectively prevent grout from flowing back
5) Hardness of base material is equivalent to API Spec N-80
Specification |
In-Dia |
Out-Dia |
Height |
Backward
pressure |
Connect screw thread |
Material |
Standard |
FX-FZQ140 |
154 |
122 |
500 |
25MPa |
5-1/2"LCSG |
40Cr |
SY/T5618-2000 |
FX-FZQ178 |
194 |
159 |
500 |
25MPa |
7"LCSG |
40Cr |
SY/T5618-2000 |
FX-FZQ245 |
270 |
220 |
550 |
25MPa |
9-5/8"LCSG |
40Cr |
SY/T5618-2000 |
FX-FZQ340 |
365 |
313 |
550 |
10MPa |
13-3/8"LCSG |
40Cr |
SY/T5618-2000 |
Audited Supplier 
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