The Drilling Rotary Casing Pipe is obtained by driving a steel soding into the ground in order to protect the whole drilling operation; basically the rotary drilling tool during the working process, performs inside a mechanical protection made by the casing fixed into the ground.
Double walled rotary casings pipe can be used universally, as they are designed especially for transmitting high rotational and vertical forces as created by the rig rotary drives or oscillations .
The use of double walled casings ensures a flush drill string.
Single walled rotary casings pipe can be used for applications where weight reduction is important.
Drilling Diameter Range: 620~2500mm
Wall thickness: 20~60mm
DOUBLE-WALL CASING TECHNICAL DATA
| Dia. | Length | Wall thick ness-1 | Wall thick ness-2 | Total thick ness | Bolt QTY | |||||
| D1/D2 | 1m | 2m | 3m | 4m | 5m | 6m | A1 | A2 | T2 | Bolt |
| (mm) | Weright(kg) Parts Number | (mm) | (mm) | (mm) | (Nos) | |||||
| 620/540 | 403 | 739 | 1074 | 1411 | 1747 | 2081 | 12 | 8 | 40 | 8 |
| 880/800 | 585 | 1069 | 1552 | 2036 | 2520 | 3005 | 12 | 8 | 40 | 10 |
| 1000/920 | 669 | 1221 | 1773 | 2328 | 2877 | 3429 | 12 | 8 | 40 | 10 |
| 1180/1100 | 844 | 1580 | 2316 | 3052 | 3787 | 4522 | 16 | 8 | 40 | 12 |
| 1300/1220 | 933 | 1746 | 2558 | 3372 | 4184 | 4996 | 16 | 8 | 40 | 12 |
| 1500/1400 | 1433 | 2628 | 3817 | 5009 | 6210 | 7393 | 20 | 10 | 50 | 12 |
| 1800/1700 | 1730 | 3166 | 4602 | 6038 | 7474 | 8910 | 20 | 10 | 50 | 16 |
| 2000/1880 | 2450 | 4280 | 6110 | 7940 | 9770 | 11600 | 20 | 15 | 60 | 12 |
| 2200/2080 | 2700 | 4720 | 6740 | 8760 | 10780 | 12800 | 20 | 15 | 60 | 12 |
| 2500/2380 | 2960 | 5240 | 7520 | 9800 | 12080 | 14360 | 20 | 15 | 60 | 16 |
SINGLE-WALL CASING TECHNICAL DATA
| Dia. | Length | Wall thick ness | Wall thick ness | Bolt QTY | |||||
| D1/D2 | 1m | 2m | 3m | 4m | 5m | 6m | T | B | Bolt |
| (mm) | Weright(kg) Parts Number | (mm) | (mm) | (Nos) | |||||
| 1300/1200 | 845 | 1475 | 2105 | 2735 | 3365 | 3995 | 20 | 40 | 12 |
| 1500/1400 | 1310 | 2220 | 3130 | 4040 | 4950 | 5860 | 25 | 50 | 12 |
| 1800/1700 | 1580 | 2675 | 3770 | 4865 | 5960 | 7055 | 25 | 50 | 16 |
| 2000/1880 | 2140 | 3355 | 4570 | 5785 | 7000 | 8215 | 25 | 60 | 12 |
| 2200/2080 | 2350 | 3690 | 5030 | 6370 | 7710 | 9050 | 25 | 60 | 12 |
| 2500/2380 | 2575 | 4100 | 5625 | 7150 | 8675 | 10200 | 25 | 60 | 16 |
Advanture of the casing :
1. The technical parameters and processes of the products are in line with the Euro standard
2. Deformation and accuracy is strictly controlled through heat treatment , each casing is interchangeable.
3.Besides Bauer , casing is also suitable for Soilmec , Casagrande and China brand rig such as Sany XCMG etc.
