Tubing Heads
Destination:
The tubing heads are used to suspend and to seal the tubings with 2 ⅜ in (60,3 mm), 3 ½ in (88,9 mm), 2 ⅞ in (73 mm) si 4 ½ in (114,3 mm) diameters.
The Tubing heads consist of a flanged spool in which a tubing hanger is suspended, locked by a special nut or by lock-down screws.
The tubing hanger is provided with a special thread for mounting – dismounting of back-pressure valves or test plugs.
The tubing flanges are provided with a seat for secondary seal of casing. The flanges and side outlets are in accordance with API Spec. 6A
About Material class and Temperature classification, see Appendix A.
Tubing heads
Bottom flange in x PSI |
Top flange in x PSI |
Tubing head type | D1, in |
H1, in |
D2, in |
H2, in |
|
Conventional | Hanger flange | ||||||
11 x 2,000 | 7 1/16 x 2,000 | X | – | 20 | 2,81 | 14 | 2,19 |
11 x 3,000 | 7 1/16 x 3,000 | X | X | 21,5 | 3,06 | 15 | 2,5 |
11 x 3,000 | 7 1/16 x 5,000 |
– | X | 21,5 | 3,06 | 15,5 | 3,62 |
11 x 5,000 | X | X | 23 | 4,69 | 15,5 | 3,62 | |
7 1/16 x 5,000 | 7 1/16 x 10,000 |
X | – | 15,5 | 3,62 | 18,88 | 4,06 |
9 x 10,000 | X | – | 21,75 | 4,88 | 18,88 | 4,06 | |
11 x 10,000 | X | X | 25,75 | 5,56 | 18,88 | 4,06 | |
7 1/16 x 15,000 | – | X | 19,88 | 4,69 | 18,88 | 4,06 |