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DTH Water Well Rigs 150


Technical Description

MODEL JCR -150 DRILL RIG TECHNICAL SPECIFICATIONS.

DESCRIPTION: JCR -150 DTHR combination Drill Rig mounted on Ashok Leyland Model Taurus 2516 6x4    wheel drive with top head drive, hydraulics driven by carrier engine is capable of drilling 150mtrs.

CAPACITY: DTH Drilling: The rig is capable of drilling 6” to 10” Dia Holes upto 150mtrs in hard rock and    abrasive formation.

MUD ROTARY DRILLING: Up to 12 ½” diameter hole by direct mud rotary drilling method in alluvial,    sandy, soft, medium and collapsible formations upto 150mtrs depth by using suitable mud pump and    Rock Roller Bits.

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 6mtrs (20 feet) long drill pipe and 6mtrs 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.

Optional: - Mast Capable of Handling 3 mtrs (10 feet).

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 12500 in-lbs. The rotary head is swing out and    hydraulically operated sliding arrangements to enable easy handling.

MUD SWIVEL: A separate air/mud swivel is provided to prevent the accidental entry of air/mud in rotary    head.

FEED SYSTEM: Heavy duty, single hydraulic cylinder is provided to accommodate 6Mtrs (ID) long drill    pipes and to handle 6Mtrs casing pipes. The pull back is of 4448 kg and the pull down capacity will be    2683 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.

The pull back/up speed is High Speed up :27Mtrs/Min.
High Speed down :44Mtrs/Min.
Slow feed rate up :5Mtrs/Min.
Slow feed rate down :9Mtrs/Min.


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.

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.


STABILIZERS (JACKS): Hydraulically operated leveling jacks of 90 x 56 x 800 (stroke) 4 numbers is    provided with suitable leveling arrangement and double lock check valves (locking device) and is located    at convenient place 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 400mm. The centraliser table has to be set above the truck 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 : Manual operated single rod changer will be provided for changing the drill    pipes, how ever a rod changing mechanism for fast makeup and brake out of drill string can be provided    as optional.

AIR LINE LUBRICATOR: A inline oiler of adequate capacity and suitable for working pressure up to 350    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.

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.   

TOOLS BOX: A suitable tools box with necessary tools generally required for drilling is provided.

 
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