Double-walled casing with 40 mm coupling, wall thickness 15/10 mm, light design. Drill casings can be used in the Kelly drilling process, however not when a casing oscillator is in use.
Casing outside diameter - 620 mm
620 mm
Effective length - 1,000, 1,500, 2,000, 3,000, 4,000, 5,000, 6,000 mm
1,000, 1,500, 2,000, 3,000, 4,000, 5,000, 6,000 mm
Cutting diameter of tool Dc - 520 mm
520 mm
Type - Heavy duty
Heavy duty
Equipment - Conical bolts, conical rings, threaded rings and locating keys
Conical bolts, conical rings, threaded rings and locating keys
