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Technical Description |
MODEL JCR MTM-150( MINI TRUCK MOUNTED) DRILL
RIG TECHNICAL SPECIFICATION.
JCR MTM-150
DTHR combination Drill Rig mounted on Tata Truck
407 (4 X 4 wheel drive) with top head drive,
hydraulics driven by truck engine is capable of
drilling 150mtrs.
•
CAPACITY: The rig is capable of
drilling 200mm dia hole by over burden drilling
to a depth of 20 to 25 mtrs in
soft/unconsolidated formation, and 150-165 mm
dia hole to a depth of 150 mtrs by DTH method in
hard rock and abrasive
formation.
• DIRECT ROTARY
DRILLING: 350mm dia hole by mud rotary
(Direct Rotary) method by reaming in alluvial
/sandy, soft medium and collapsible formation
upto 60-75 mtrs.Depth.
Note: Above
drilling capacities are possible under
favourable drilling conditions
only.
• MAST: The mast
is made of heavy duty welded, construction
reinforced with suitable cross members (plates)
confirming to IS standard so that it is strong
enough to with stand the high drilling
loads.
The Mast is capable of handling 3
mtrs (10 feet) long drill pipe and 3 mtrs long
casing pipe. The rig will be provided with level
indicators for proper leveling. The mast is
raised and lowered by means of suitable capacity
hydraulic cylinders. The mast is equipped with
sufficient arrangements during night drilling.
The lifting of drill rods is provided
hydraulically lifting
arrangements.
• TOP HEAD ROTARY
HEAD: Hydraulically operated top drive
rotary head having variable speed range of 0-100
rpm and capable of giving a torque of about 340
Kg-m
MUD SWIVEL: A
separate air/mud swivel is provided to prevent
the accidental entry of air/mud in rotary
head.
• FEED SYSTEM: Heavy duty, strength, single hydraulic cylinder
is provided to accommodate 3Mtrs (ID) long drill
pipes and to handle 3Mtrs casing pipes. The pull
back is of 6620 kg and the pull down capacity
will be 4100 kg. The feed system incorporate
having arrangement to control and limit weight
on the drilling bit. Rapid and slow feed speed
arrangement is provided with suitable regulating
valve and pressure gauge. Pressure gauges is
provided measure the down feed and hold back
pressure of the system.
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The pull back/up speed is
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High Speed
up : 30Mtrs/ Min.
High Speed down :
50Mtrs/Min.
Slow feed rate up :
5Mtrs/Min.
Slow feed rate down : 9Mtrs/Min. |
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• HYDRAULIC SYSTEM: An
efficiently designed hydraulic system is
provided to operate rotation, feed, jacks mast
raising cylinders, break out wrenches,
water/foam injection pump. The system is
operated with Tractor Engine. The system
incorporates full release filtration, in tank
return and suction filters and an efficient oil
system to obtain long hydraulic
system.
The hydraulic system includes
hydraulic Oil Cooler suitable for 50 degree
Centigrade ambient, high pressure hydraulic
hoses, control valves, gauges etc. for efficient
operations. A Hydraulic system of adequate
capacity is to be provided at a conventional
location and it is always remain under go to
prevent entry of dust particles. Gear type pump
is provided.
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Function: |
Stage 1: Rotation
100rpm/front feed.
Stage 2: Slow
Rotation
Stage 3: Slow Feed/Low speed
Hoist
Stage 4: Derrick hoisting cylinder,
Break out,
wrench
Jacks, Water injection pump,
Hydraulic
oil coolers, Winch. |
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• STABILIZERS (JACKS): Hydraulically operated leveling jacks 610mm
(stroke) 3 numbers is provided with suitable
leveling arrangement and double lock check
valves (locking device) and is operated console
for fast and accurate leveling.
•
BREAK OUT SYSTEM: Break out Wrench:
Hydraulic break out wrench cylinder is provided
with provision of opening drill pipe, hammer,
button bits etc on the centraliser drill table
using appropriate wrenches/tools. Stroke about
350mm Torque 200kg-M
(approximately).
• SWING OUT
CENTRALOSER TABLE: The working
table/centraliser is having a minimum table
opening of 240mm. The centraliser table has to
be set above the tractor chassis to prevent the
drill cuttings falling back into the
hole.
• DUST CURTAIN: A
rubberized curtain (dust curtain) is provided to
protect the operators from falling of stone
cuttings or splashing of water during drilling
or blowing.
• AUX WINCH: The mast is equipped with the hydraulically
operated winch having jib boom for handling of
drill pipes, hammers, and heavy tools. The rated
capacity of the hydraulic hoist is 1000 kg with
built in brakes and is provided with suitable
sized cable of necessary length. The winch is
operated simultaneously when drilling is carried
out for handling drill pipes
etc.
• ROD CHANGING DEVICE
(OPTIONAL) A rod changing mechanism for
fast makeup and brake out of drill string is
provided.
• AIR LINE
LUBRICATOR: A inline oiler of adequate
capacity and suitable for working pressure up to
250 PSI is provided for injecting oil in all
compressed air stream complete with oil
reservoir volume control is
provided.
• CONTROL
PANEL: Centraliser control panel is
located at a convenient place on the drill to
enable the driller for efficient control of the
operation. All levers, valves and gauges are
conveniently grouped. The control for setting up
of the rig is grouped in such a way to prevent
accidental operation while drilling. A locable
steel cover (control panel cover) is provided
for the control panes to protect gauges and
controls during transportation. Gauges will
include rotation, pull down, hold back/air
pressure and emergency shut down switch for the
engine will be provided.
• MUD
PUMP: Diesel Engine driven 4” x 4”
progressive cavity screw pump of capacity about
300-500LPM at 10Kg/sq.cm
•
LIGHTING SYSTEM: The electrical system
of the rig is 12/24 V system powered by
generator and batteries of the rig engine. The
system is provide panel and instrument
illuminating light and minimum three spot lights
is directed towards the mast and
rotation.
• DRILLERS AND
OPERATORS PLATFORM: A suitable folding
working platform (full length) is provided for
the operator and the helper.
•
DRILL PIPE RACK: Suitable arrangement
is made to carry the drill rods on both the
sides of the truck space
available.
• TOOLS BOX: A suitable tools box with necessary tools
generally required for drilling is
provided.
• COMPRESSOR: Screw Compressor of 450cfm /150 PSI, for shallow
depths, 650cfm/200PSI 152mm dia bore will drill
to a depth of
150mtrs. |
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Mini Tractor Mounted Rigs |
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