Reverse Circulation Drilling - TECHNICAL SPECIFICATIONS | |
CAPACITY | To drill of 5" holes by reverse circulation (DTH) method up to 200 mts |
PRIME MOVER | Truck mounted with power from deck engine or skid mounted with power from deck engine |
WORK METHOD | Rotation with direct circulation, nucleus destruction with bleeding by water, by Reverse circulation method with DTH hammer |
MAST | Box type structure will be provided with feed cylinder 2 Nos (140 x 80 x 2350) and wire rope reeving of 1:3 ratio with angle drilling up to 450 Max Capacity - 18 tons (39600 lbs) Height - 8 mtr (27 ft) Rod handling capacity - 6 mtr (20 ft) |
PULL UP AND PULL DOWN | By means of Hydraulic cylinder and wire rope Reeving Ratio 1:3 Max Pull up force - 10750 kg (23650 lbs) Max Pull up speed - 40 mtr / min (132 ft / min) Max Pull down force - 7250 kgs (10550 lbs) Max Pull down speed - 60mtr / min (198 ft/min) |
HYDRAULIC SYSTEM | 210 kg / cm2 / (3000 psi) |
ROTARY HEAD | Two speed rotary head is powered by single speed hydraulic motor with Swivel attachment for mud/water suitable for reverse circulatory and DTH drilling Max Torque - 650 kg mtr (29361 inch - lbs) Max Speed - 0 to 100 RPM |
JACKS | Four box type hydraulic jaws |
WATER INJECTION PUMP | Triplex reciprocating pump powered by hydraulic motor |
BREAK OUT WRENCH | To open the drill joints rigid type break out wrench of 350 mm stroke will be provided with rope attached |
SUITABLE COMPRESSOR | 1100 cfm - 350 psi, additional booster, compressor mounting is separate |
OPTIONAL ATTACHMENTS | Manually operated corousal four rod changer to handle four nos drill pipe rods to couple drill head A two ton winch is provided to handle drill rods and other tools |
CYCLONE | Will be supplied for reverse circulatory drilling and will be mounted on the rig |