Reverse Circulation Rotary Rig
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RC-600 Jet-6 Reverse Circulation Rotary Rig

 
Rated Capacity      450 mm - 1270 mm dia. hole, Depth up to 150 Mts. - 200 Mts. without air injection System
     depending on formation encountered.

     Casing pipe setting up to 1016 mm diameter.
Mast

z

Construction

     Electrically Welded tubular steel construction.

Height

     14.5 Mts. clearance from table top to bottom of crown.

Gross Load Capacity

     27200 Kgs.

Hook Load Capacity

     18150 Kgs. with four lines.
     20500 Kgs. with six lines.

Raising and Lowering

     2 Nos. Double acting hydraulic cylinders.

Crown Block

     6 Nos. roller bearing mounted wire lines sheaves and 1 No. Cat line sheave.

Rotary Table

z

Opening

     457 mm

Gear Ratio

     6 : 1 Bevel Gear and Pinion.

Type

     Hinges in vertical position for changing large dia. bits OR lowering casing pipes.

Drive

     Torque tube.

Clutch

     279 mm Two plates mechanical disc clutch.

Draw Works

     Two Identical drums

Barrel Dia. & Length

        178 mm X 320 mm

Flange Dia.

      500 mm

Pull Capacity

      6850 Kgs. Single line bare drum.

Clutch

      406 mm 2 plate mechanical type

Brake

      470 mm X 115 mm Mechanical high leverage type double brake.

Drive

      Chain

Slush Pump

     

Size

     127 mm Suction & 101.6 mm Delivery

Type

     High Pressure Centrifugal.

Drive

     Through Diesel Engine, PTO and Tyre Coupling.

Jet Eductor

     152 mm full open centrifugal pump operated. Instantly self-priming. No moving parts. This jet eductor is a      hydraulic jet mechanism so designed that it develops and exceptionally high vacuum, This facilitating      operation to greater depth. It is instantly self priming, eliminating the use of any separate priming device.      So designed that all the cuttings, grit and boulders in the return line completely by-pass all operating      mechanism. The centrifugal pump handles only the small quantity of cutting-free water necessary to      actuate the jet.

Jacks

     Total 6 Nos. mechanical screw jacks.

Swivel

     152 mm Dia. full open, oil bath.

Kelly

        178 mm X 152 mm ID X 4.26 Mts. long flange type fabricated kelly.

Drill Pipe

     150 mm ID X 3.05 Mts. long flange type drill pipe.

Prime Mover

     By Two Nos. Diesel Engine each developing around 100 HP at 1800 RPM.

Mounting

     Low frame, rear two axled, semi trailer equipped with horse coupling.

Optional

     Air lift equipment.


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