The Non-rotating Float Collar is run in a casing assembly, usually several joints above the Float Shoe.
It serves as an extra back pressure valve sealing against pressures from blow while running the
assembly and after the cementing job. Internal latch and valve are readily drillable. Its capability
of back-pressure is over 25MPa.
The FS float shoe also has a back-pressure valve to prevent back flow. It permits cement to run through side ports when the nose of the shoe is on the bottom. Inner valve and bottom guides are all made of drillable material. Its capability of back-pressure is over 25MPa.
Technical Parameter
Non-rotating Float Collar
Φ508
|
Φ339.7
|
Φ273
|
Φ244.5
|
Φ177.8
|
Φ139.7
|
Φ127
|
Φ114.3
|
Φ101.6
|
Φ88.9
|
20"
|
133/8"
|
103/4"
|
95/8"
|
7"
|
51/2"
|
5"
|
41/2"
|
4 "
|
31/2"
|
Non-rotating float shoe
Φ508
|
Φ339.7
|
Φ273
|
Φ244.5
|
Φ177.8
|
Φ139.7
|
Φ127
|
Φ114.3
|
Φ101.6
|
Φ88.9
|
20"
|
133/8"
|
103/4"
|
95/8"
|
7"
|
51/2"
|
5"
|
41/2"
|
4 "
|
31/2"
|
API Cement tools Float collar float shoe are necessary conventional accessories for down-structure of casing string. float collat and float shoe is a heat-resisting, sealer and drillable tool. it's join easy and replace for guide shoe and casing shoe. it's used to protection casing and production casign, also used to deep well and ultra deep well. it classify ordinary type and self fill-up type according to way of drilling fluid get into.
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