No. | Diammeter of The First Section | Sections | Key Pressure Type | Length of per section(m) | Drill depth | Torque(KN.M) | ||||
1 | ¢299 | 3 | Interlocking | 9-12 | 24-45 | 100 -120 | ||||
2 | ¢342 | 3 | 4 | Interlocking | 9 - 12 | 24-45 | 100 -120 | |||
3 | ¢355 | 3 | 4 | Interlocking | 9 - 14 | 24 - 56 | 100-120 | |||
4 | ¢368 | 3 | 4 | Interlocking | 9 - 14 | 24 - 56 | 150-180 | |||
5 | ¢377 | 3 | 4 | Interlocking | 9 - 14 | 24 - 56 | 150-180 | |||
6 | ¢394 | 3 | 4 | Interlocking | 9 - 15 | 24 - 58 | 180-200 | |||
7 | ¢406 | 3 | 4 | Interlocking | 9 - 15 | 24 - 58 | 180-200 | |||
8 | ¢419 | 3 | 4 | Interlocking | 9 - 15 | 24 - 58 | 200-230 | |||
9 | ¢440(445) | 3 | 4 | Interlocking | 9 - 15 | 24 – 58 | 220-260 | |||
10 | ¢470 (482) | 3 | 4 | Interlocking | 9 - 16 | 24 – 60 | 220-260 | |||
11 | ¢508 | 3 | 4 | Interlocking | 9 – 18 | 24 – 68 | 260-360 | |||
12 | ¢530 (540) | 3 | 4 | 5 | Interlocking | 9 – 20 | 32 – 92 | 320-400 | ||
13 | ¢580 (575) | 3 | 4 | 5 | Interlocking | 9 – 20 | 32 – 92 | 360-420 | ||
14 | ¢630 | 3 | 4 | 5 | Interlocking | 9 - 22 | 32 - 102 | 400-500 |