Direct Rotary Drills Rigs
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ROTARY DRILLS They are
meant for drilling in alluvial and semi-consolidated
formations and for virgin areas in connection with
exploration program, by using drilling mud fluid.
RATED CAPACITY:
8" [203mm] holes upto 2000 Ft [610 Mts] directly using
2.7/8" [73mm] OD Drill Pipes.
8" [203mm] - 10" [254mm] holes upto 2000 Ft [610 mts]
directly using 3.1/2" [88.9mm] OD Drill pipes.
CASING LOAD:
27500 lbs [12500 Kgs.] by using Single sheave Traveling
Block
55000 lbs [25000 Kgs.] by using Double sheave Traveling
Block.
MAST:
Heavy Duty Tubular Steel Construction Electric welded
46 Ft [14.0 mts] high above Ground Level during drilling
90000 lbs [41000 Kgs] Gross Load capacity
5 Sheaves + 1 catline sheave
Raised and lowered by two hydraulic cylinders with
safety check valves.
DRILL HEAD:
Rotary Type as integral unit with Draw works and
Hydraulic pull down.
4.1/2" [114.3mm] Hydraulic Retraction - 21" [533.4mm]
Disc, Type Friction Clutch.
CAT HEAD:
Shaft mounted provided on the right side of the drill
head
Heavy Duty Tubular Steel Construction Electric welded
46 Ft [14.0 mts] high above Ground Level during drilling
90000 lbs [41000 Kgs] Gross Load capacity
5 Sheaves + 1 catline sheave
Raised and lowered by two hydraulic cylinders with
safety check valves.
PULL DOWN:
16000 lbs [7272 Kgs] pull down through twin hydraulic
cylinders having 30" [762mm] stroke.
DRAW WORKS:
Hoisting and sand reel drum having baredrum single line
pull of 16000 lbs [7272 Kgs] each
Barrel dia x length each drum - 7" [178mm] x 10.3/8"
[263.5mm]
High leverage Mechanical type Brakes, Single/Double on
drums
Chain Driven with multiple Disc Friction clutch.
MUD PUMP:
`PRECISION' Model 'S-200' 8" [203mm] x 6" [152mm]
positive displacement Duplex Double action Mud pump with
interchangeable liners as per operational requirements
having wider choice of discharge/pressure. 'V'Belts/Chain
Drive.
HYDRAULIC SYSTEM:
21 US GPM [80 LPM] 1500 PSI [105Kg/cm2] - Fixed
displacement vane type pump
MOUNTING & PRIME MOVER
Truck / Trailer. Powered by Truck Engine and/or suitable
independent Engine(s).
TRANSMISSION:
5 Forward and 1 Reverse.
KELLY:
4.1/8" [104.7mm] OD x 28 ft [8.53 mts] long 3 flutted
round kelly.
LIGHTING:
Truck Battery/Alternator.(24 Volts DC)
LEVELLING JACKS:
4 Nos. Mechanical / Hydraulic
CONTROLS:
Conveniently located for ease of operation.
OPTIONAL:
Longer Mast
Choice of Mud Pumps
Choice of Hydraulic pumps
Hydraulic Breakout System
Air clutches
Diesel generating set for lighting DTH attachments for
drilling by DTH method
Casing drum
Hydraulic leveling jacks
Chain pull down having stroke length of 20 feet. |
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