Features /
1.The circulation ports can be hydraulically opened, eliminating the need to use a free-fall opening plug. Therefore, the hydraulic stage collar can be used in deviated and horizontal wells.
2.Retaining mechanism prevents pre-mature opening. 3.Anti-rotation mechanism improves drill-out efficiency. |
Size |
Sealing capacity |
Casing weight |
Opening pressure |
Closing pressure |
||
in |
mm |
MPa |
lb/ft |
mm |
MPa |
MPa |
5 1/2 |
139.7 |
35/50 |
17.00 |
7.72 |
17-19 |
5 |
20.00 |
9.17 |
|||||
7 |
177.8 |
35/50 |
26.00 |
9.19 |
||
29.00 |
10.36 |
|||||
32.00 |
11.51 |
|||||
35.00 |
12.65 |
|||||
7 5/8 |
193.7 |
35/50 |
29.70 |
9.52 |
||
33.70 |
10.92 |
|||||
39.00 |
12.70 |
|||||
9 5/8 |
244.5 |
35/50 |
40.00 |
10.03 |
||
43.5 |
11.05 |
|||||
47.00 |
11.99 |
|||||
53.50 |
13.84 |