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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. |
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| RATED CAPACITY |
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| 8” [203mm] holes upto 1500 Ft [457Mts] directly using 2.7/8” [73mm] OD Drill Pipes. |
| 8” [203mm] – 10” [254mm] holes upto 1500 Ft [457mts] directly using 3.1/2” [88.9mm] OD Drill pipes. |
| Larger size holes for various depths by reaming. |
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| CASING LOAD |
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| 26400 lbs [12000 Kgs.] by using Single sheave Traveling Block |
| 4400 lbs [20000 Kgs.] by using Double sheave Traveling Block. |
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| MAST |
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| Heavy Duty Tubular Steel Construction Electric welded |
| 42 Ft [12.8 mts] high above Ground Level during drilling |
| 70000 lbs [31818 Kgs] Gross Load capacity |
| 5 Sheaves + 1 catline sheave |
| Raised and lowered by two hydraulic cylinders with safety check valves. |
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| DRILL HEAD |
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| Rotary Type as integral unit with Draw works and Hydraulic pull down. |
| Opening – 3” [76.2 mm] / 3.1/2” [88.9 mm] /4.1/2” [114.3 mm) |
| Hydraulic Retraction – 21” [533.4mm] |
| Disc, Type Friction Clutch. |
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| CAT HEAD |
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| Shaft mounted provided on the right side of the drill head. |
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| PULL DOWN |
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| 16,000 lbs [7272 Kgs] pull down through twin hydraulic cylinders having 30” [762mm] stroke. |
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| DRAW WORKS |
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| Hoisting and sand reel drum having bare drum single line pull of 15000 lbs [6818 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. |
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| MUD PUMP |
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| `PRECISION’ Model ‘S-200’ 8” [203mm] x 6” [152mm] or `S –150’ 6” (152mm) x 5 1/2 (139.7mm) positive displacement Duplex Double action Mud pump with interchangeable liners as per operational requirements having wider choice of discharge/pressure. ‘V’ Belts/Chain Drive |
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| HYDRAULIC SYSTEM |
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21 US GPM [80 LPM] 1000 PSI [70Kg/cm2] – Fixed displacement vane type pump. |
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| MOUNTING & PRIME MOVER |
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Truck / Trailer |
| Powered by Truck Engine and/or suitable independent Engine(s) |
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| TRANSMISSION |
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| KELLY |
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3.3/8” [85.7mm] OD x 28 ft [8.53 mts] long 3 fluted round Kelly. |
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| LIGHTING |
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Truck Battery/Dynamo /Alternator |
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| LEVELING JACKS |
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4 Nos. Mechanical or Hydraulic |
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| CONTROL |
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Conveniently located for ease of operation. |
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| OPTIONAL |
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Longer Mast |
| Choice of Mud Pumps |
| Choice of Hydraulic pumps |
| 41/8” (104.77mm) OD Kelly |
| 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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