Model: PDTH-100(INWELL RIG)
DRILLING AT NALGONDA – TELENGANA STATE :
Technical Specifications:
Make: | PHEL |
Model & Type | PDTH-100, DTH drilling rig |
Capacity : DTH Drilling | |
Drill hole Diameter | 4 ½ inch (114.3 mm) |
Drill Rod Diameter | 3 inch (76 mm) |
Drill Rod Length | 5 feet (1.5 meter) |
Max Depth | 100 meters |
Carrier | Skid for the mounting of drill rig |
Prime Mover | The system shall be powered using diesel driven engine with the following capacity. |
Engine make | Ashok Leyland or Kirloskar or any other reputed make |
Rated capacity | 16 hp @ 1500 Rpm or equivalent |
Mounting Structure | Tripod base with 3-Mechanical Jacks. |
Mast Assembly | Sturdy structural channel mast structure electrically welded. |
Mast overall length | 2,500 mm |
Rotary head travel | 1,600 mm |
Centralize opening | 8 inch (204 mm) |
Feed System | Feed & Hoist actuation: Pulley, Wire rope & Hydraulic cylinder. |
Feed cylinder Size & stroke | Dia 80 mm x Dia 50 mm x 800 mm long. |
Pull Up | 3,500 Kg-f |
Pull Down | 2,100 Kg-f |
Hoisting speed | (up) 12.5 meter/ minute |
Reeving Ratio |
1:2
Having adequate travel to handle drill pipes and casing pipes up to 1.5 meter Long. Feed system consists of hold back arrangement to control limit weight on bit, rapid and slow feed arrangement to suit variable ground condition. |
Rotary Head Assembly (Top HeadDrive) | Fabricated steel body |
Torque | 146 kg-m |
Rotation Speed |
Spindle rpm: 0-25 rpm
The RH unit travels on mast assembly to absorb sudden shock loads encountered during drilling Operation. |
Hydraulics |
The entire equipment is designed to operate at high temperature encountered in the normal weather conditions.
Open loop circuit with variable displacement piston pumps and proportional valves for feed and rotation. Diverted valves for auxiliary drives. |
Max operating pressure | 140 kg/cm² |
Hydraulic Tank capacity | 200 liters. |
Filtration (Nom) – Return line | 10/25 microns
Cooling: Fin type oil to air. |
Control Panel |
All necessary control and monitoring valves and gauges are installed at control panel located nearer to drilling point for driller convenience |
Auxiliary | |
Stabilizer (3 No’s) | |
Model | Mechanical Screw Jacks. |
Water Injection Pump | Hydraulically operated triplex water injection pump, for injecting water/foam with necessary piping and flow control valves |
Max. Flow | 36 liter/minute |
Max. Pressure | 40 kg/cm² |
Air compressor | Trolley Mounted type |
Make | ELGI/Atlas Capco or Equivalent reputed |
Capacity | 450 cfm @ 150 psi |
Airline Lubricator | Air-line lubricator will be used for DTH Hammer lubrication. |
Make | Spinc or any reputed make |
Capacity | 450 cfm @ 150 psi |