Float Valve Sub
- PRODUCT DETAIL
Float valve sub is an
important tool in petroleum exploration and drilling engineering. The float
valve sub is connected at upper part of drill bit. The float valve sub is near
the bit connecting thread. The float valve sub can also be used at different
necessary position of drill string when required. The main application is, when
connected with single piece pipe, it prevents mud from coming in and up
blocking the hole. When blowout takes place, blowout in drill string will be
avoided because nozzle is closed automatically by valve cap of the float valve
assembly.
Technical Parameter
|
Sub OD mm |
Joint Connection |
Valve OD mm |
ID mm |
|
241.3 |
7-5/8 REG BXB |
121 (5F6R) |
76.2 |
|
228.6 |
7-5/8 REG BXB |
121 (5F6R) |
76.2 |
|
209.6 |
6-5/8 REG BXB |
121 (5F6R) |
71.4 |
|
203.2 |
6-5/8 REG BXB |
121 (5F6R) |
71.4 |
|
177.8 |
4-1/2 REG B X NC50 B |
88 (4R) |
71.4 |
|
165.1 |
4-1/2 REG B X NC50 B |
88 (4R) |
71.4 |
|
158.8 |
4-1/2 REG B X NC46 B |
88 (4R) |
71.4 |
|
127 |
3-1/2 REG B X NC38 B |
61 (2F3R) |
50.8 |
|
104.8 |
2-7/8 REG B X NC31 B |
48 (1F2R) |
38.1 |
