Beijing Jietaihongli Technology Co., Ltd.
Beijing Jietaihongli Technology Co., Ltd.
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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 Pipe 25CrMo Casing Joint Casing Shoe WS39 Teeth Bauer Drilling Rig Casings
1. Welding:Full robot welding, submerged arc welding, no seams
2. Casing Joint:Q345B with heat treatment or 25CrMo
3. Casing Pipe Material:Q345B
4. Size:Various sizes can be customized
5. Connection System:Bauer, Leffer and other connection systems can be customized
6. Matching Drilling Rig:Bauer, Soilmec, Mait, Casagrande, Liebherr, Sany and other international brand drilling rigs
7. Verticality: The casing verticality is no more than 2%;
Joint ellipticity is controlled within ±1mm.
8. Bolt:The casing bolt connection has German standard, Japanese standard, LEEFER (usually used for full rotation), Taiwan (heavy-duty machine) and other specifications according to customer requirements.
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
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