| Employed in rotary drilling with fluid circulation in particularly difficult soil. Manufactured with cold-drawn seamless steel tubing with box/pin end threadings. Heavy duty casing is also available where tubings have a greater thickness compared to the standard kind. Penetration of the soil is obtained by using a casing shoe having tungsten carbide inserts or a diamond core bit. |
|
Diam. est. (mm.) |
Diam. Int. (mm.) |
Lunghezze (mm.) |
Peso Kg./m. |
|
44 |
37 |
750-1500-3000 |
3,2 |
|
54 |
47 |
750-1500-3000 |
4,5 |
|
64 |
57 |
750-1500-3000 |
5,2 |
|
84 |
77 |
750-1500-3000 |
7,2 |
|
98 |
89 |
750-1500-3000 |
10,5 |
|
114 |
104 |
750-1500-3000 |
13,5 |
|
127 |
107 |
750-1500-3000 |
28,9 |
|
133 |
113 |
750-1500-3000 |
30,3 |
|
152 |
132 |
750-1500-3000 |
35,1 |
|
178 |
153 |
750-1500-3000 |
51,3 |
|
194 |
169 |
750-1500-3000 |
56 |
|
203 |
178 |
750-1500-3000 |
58,7 |
|
219 |
194 |
750-1500-3000 |
63,7 |
|
244 |
219 |
750-1500-3000 |
71,5 |
|
254 |
229 |
750-1500-3000 |
74,4 |
|
Diam. est. (mm.) |
Diam. Int. (mm.) |
Lunghezze (mm.) |
Peso Kg./m. |
|
44 |
37 |
750-1500-3000 |
3,2 |
|
54 |
47 |
750-1500-3000 |
4,5 |
|
64 |
57 |
750-1500-3000 |
5,2 |
|
84 |
77 |
750-1500-3000 |
7,2 |
|
98 |
89 |
750-1500-3000 |
10,5 |
|
114 |
104 |
750-1500-3000 |
13,5 |
|
127 |
107 |
750-1500-3000 |
28,9 |
|
133 |
113 |
750-1500-3000 |
30,3 |
|
152 |
132 |
750-1500-3000 |
35,1 |
|
178 |
153 |
750-1500-3000 |
51,3 |
|
194 |
169 |
750-1500-3000 |
56 |
|
203 |
178 |
750-1500-3000 |
58,7 |
|
219 |
194 |
750-1500-3000 |
63,7 |
|
244 |
219 |
750-1500-3000 |
71,5 |
|
254 |
229 |
750-1500-3000 |
74,4 |
Casing adaptor
They allow for casing tube-drive head connection.
Double haul head/tubes drill pipes
They allow to rotate the casing pipes and drill pipes contemporarily with one sole drive head with a rugged system of J-Slot pins.
