small drilling rig

Durga Drilling Rig

DT- 300 / DT-500 DTH DRILL RIG

GENERAL:

DT 100 Model, Top drive DTH Hydraulic Operated Truck Mounted Drilling Rig, Designed tohandle Air Drilling application. This Rig is capable of Drilling in different formations such as Hard Rock by DTH, Unconsolidated / alluvial formations using air / foam flush Rotary method, up to a rated depth .Under favorable Drilling Conditions the following are the detailed specifications.

CAPACITY:

DTH Drilling:

Max. Drilling Diameter.                                         -                    4 ~ 20     Inches

Max. Drilling Depth.                                              -                     100 ~ 150          Mt.

Max. Drilling Diameter (direct drilling)                  -                    10 ~ 14   Inches

Drill rod Diameter                                                  -                    2/3/4.5    Inches

Drill rod Length                                                     -                    10           Feet

                                                                                                                      Under favorable Drilling Conditions.

MAST:

Channel type mast of electrically welded construction, main members made out of heavy duty structural steel channels reinforced with suitable cross members, So that it is strong enough to withstand the high drilling loads.

Mast length                                    4880 mm         192.12 Inches

Raising & Lowering                       With Hydraulic cylinder

Rotary Head travel                         3600 mm         141.73 Inches

Centralizer opening                          225 mm           9  Inches

 ROTARY HEAD:

Heavy duty Hydraulic Driven Top Head Rotation Unit having infinitely variable speed (0 to 130 RPM) will be provided. This Unit travels on the Mast and is of sturdy construction to absorb sudden shock loads generally encountered during Drilling Operations.

Max. Speed                                    -                       0 - 100    RPM

Max. Torque                                                -                               250.0          Kg.f-m

Drive Motor model                                      -                               OMT - 315

Motor Quantity                                    -                       1No.

FEED SYSTEM:

Feed system is provided with adequate travel for handling drill pipes & Casing pipes up to 4.6 Mt. long. The feed and hoist are actuated by a suitable hydraulic cylinder with wire rope and pulley arrangement. The feed system has the following capabilities:

Feed cylinder size                          -                       Ø125 x Ø70 x 1280 mm Pull back/up Capacity          -                                                      8500                Kgf

Pull down Capacity                        -                       5800       Kgf

Pull back/up Speed                        -                       40 Mt. /min.

The Feed system will be incorporated with Hold back arrangement to control and limit weight on bit, rapid and slow feed arrangement to suit the variable ground conditions.

HYDRAULIC SYSTEM:

The hydraulic system is designed for fuel efficient and high productive capacity. All hydraulic elements like Pumps, Motors, Valves and cylinders shall be of adequate capacities and of reputed makes. Cast iron body bearing support gear pump one number of 170 lpm (38 GPM) capacity Cassapa make/equivalent with Spring centered direction valves 2 SM 18 are used for Rotation and Feed (Fast & micro feed) and SM 12 valves make Bosh Rexroth are used for auxiliary drives like mast raising, rig leveling, Break-out wrench, Hydraulic oil cooler & welding generator drive etc.,

All hoses shall be of R2 wire braded   which can withstand High pressure 315 bars and high temperature. The hydraulic oil shall be filtered during Suction and Return lines Trough appropriated filters.

Max. Operating pressure                -                       210                  kg/cm²

Hydraulic Tank capacity                -                       600 Lt.

Filtration (Nom.) – Return line       -                       10                    microns

Hydraulic Oil Cooler                     -                       Fin type Oil to Air

The entire Rig is designed to operate at high temperature encountered in the normal weather conditions and is robust and extremely rugged.

PRIME MOVER:

The Hydraulic System shall be powered by the Heavy duty truck Engine of  Ashok Leyland  make of model 1616  4 x 2 wheel drive with suitable P.T .O arrangement. ( optional deck engine to suit rig )

AUXILIARY SYSTEM:

WATER INJECTION PUMP   (optional):

The drill rig will be provided with hydraulically operated triplex water Injection plunger pump, for injecting water/ foam with necessary piping and flow control valve.

Max. Flow                                     -                       36           lpm

Max. Pressure                                -                       50           kg/cm²

STABILIZERS:

System consists of four hydraulic leveling jacks with ‘Reverse flow restricted valves (pilot operated check valve) to ensure safe operation. Two numbers are at rear of the rig controlled by two separate valves and two jacks at the front of the rig controlled by a single valve.

Cylinder bore diameter                  -                       100         mm               3.9 Inch

Stroke                                            -                       762         mm               30 Inch

No. of Jacks                                  -                       4             No.

BREAKOUT WRENCH:

The Drill Rig is equipped with hydraulic breakout wrench for tightening and loosening of drill pipes and the hammer.

Cylinder bore diameter                  -                       80           mm               3.1 Inch

Stroke                                            -                       300         mm               12 Inch

AUXILIARY WINCH (optional):

Hydraulically operated auxiliary winch of capacity 1.0 ton is mounted on mast to handle the casing pipes, drill pipes and other handling tools.

Bare Drum - pull                            -                       800         kgf.

Max. Speed                                    -                       20           m/min

SINGLE ROD CHANGER (optional):

Manually operated single rod changer shall be provided for changing the drill rods/pipes.

Air COMPRESSOR MOUNTING:

Air Compressor shall be mounted on rig mounted Truck. (TATA Make and of model 1613 EX, 4 X 2 drive).

AIR COMPRESSOR: ( optional )

Capacity                            -           800 CFM @ 200 PSI

Make                                 -           ELGI (or Equivalent Make/Model)

LUBRICATOR:

Capacity                            -           900 CFM @ 200 PSI

Make                                 -           SPINC (or Equivalent Make/Model)

       Tank capacity                                   -               14 LTS.

Note:

• Due to constant R & D and development world wide we do carry modification in Product Improvement so all specifications, features etc., are subject to amendments without prior notice for product upgradetion.

• Durga tractors can supply drilling rig   in custom-built model in various Configurations and Mounting features to suit your special requirements and Technical specifications if desired by you.