→ URB-25 rotary drilling rig

URB-25 rotary drilling rig

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The URB-25 drilling rig is intended for drilling by a rotor method of vertical geological, exploratory, hydro geological, operational wells, technological (water step-down, ventilating) wells, including-degassing, ventilation, water-lowering wells and wells for laying communications in underground mining,wells for hydro production and underground leaching.

Drilling Rig (URB-25) is a lightweight and simplified version of the rotary drilling rig URB-40. Due to the use of structural elements from the drilling rig URB-40 in the basis of the drilling rig URB-25, The URB-25 has improved characteristics, greater operating efficiency in comparison with the rotary installations of the type URB-3A3
(1BA-15).

The drilling rig URB-25 can be installed on the Chassis URAL-4320, KAMAZ-43118-3090-50, semi-trailers and other vehicles at the request of the customer.

Drilling technologies used:
- Rotary non-core with Flushing
- Rotary with direct flushing
- Rotary with reverse- circulation(air lift technology)

Drilling rig	URB-25
Max. hook load, kN(tf)	25 000
Drilling depth, m	1200
Drilling pipes diameter, mm	73 / 89 /114
Recommended drilling diameter, mm (initial / final) for 800m	535 or less / 244,5
Winch drive	Drive from the main engine through PTO or Deck engine, cardan drive shaft, gearbox, transfer box
Gearbox	3-speed with elector-pneumatic operator
Gearbox speed ratio	-2,43 / -1,2 / -0,6
Drilling winch (draw work)	2-reels, with central conical transfer box and planetary transfer box inside the drums. Strips up/down brake on the every two drums
Towing winch capacity on the 2-nd winding coil of the rope on the reel, kN (tf)	6 500
Rope reel winding speed with 1400 r/min main engine rotation depending of the gearbox speed ratio turn on, m/s	1,4 -5,7
Hoist-swivel - feed pipe - (4-string polys past with 2x3 ratio) lifting speed depending of the gearbox speed ratio turn on, m/s	0,15 — 1,5
Rotor	RG-425 hydro driving with hydraulic off take from the well head
Max. torque kNm (kg*F/m)	1600
Rotation frequency of the rotation table (r/min)	18 - 220
Number of the driving speed, provided by the hydraulic scheme	9
Auxiliary winch with the tilt faucet	Hydraulic
Auxiliary winch towing capacity, kN(tf)	21,56 (2,2)
Feeding pipe	Round cross-section with guidelines
Kelly pipe diameter, mm	114x114
Kelly pipe length, m	11
Mast	Originally constructed with the open front flat, telescopic, vertical
Distance from the rotary table to the crown block axis, m, no more	18
Distance from the soil to the crown block axis, m, no more, m	18
Generator , KW	15
Drilling Pump	NB-50
Max. ideal feeding,m3/h (l/s)	11
Max. exit pressure, Mpa(kg/sm2)	6,3
pump	1
Swivel
Allowed load, KN(tf)	25 000
Diameter of swivel’s hole, mm	60
Drilling pipe length, m	6/12
Length of the setting pipe, m	12
Crown block	separated
-for the hoist block with the feeding pipe
Polyspast ratio	2x3, 4-strips mounting
Polyspast payload, kN (tf)	294,3(30)
- for the hoist block hoisting and drilling load cycles
Polyspast payload, kN (tf)	24,8 (25)
Well bottom weight and load control system	IVE-50
Max. ideal feeding, m3/h (l/s)	50,4 (14)
Max. exit pressure, MPa (kg/sm2)	10(102)
Overall dimensions (transport), mm
-length/width/height	12000/2500/3990
Overall drilling rig weight, kg	23 000

Drilling rig	URB-25
Max. hook load, kN(tf)	25 000
Drilling depth, m	1200
Drilling pipes diameter, mm	73 / 89 /114
Recommended drilling diameter, mm (initial / final) for 800m	535 or less / 244,5
Winch drive	Drive from the main engine through PTO or Deck engine, cardan drive shaft, gearbox, transfer box
Gearbox	3-speed with elector-pneumatic operator
Gearbox speed ratio	-2,43 / -1,2 / -0,6
Drilling winch (draw work)	2-reels, with central conical transfer box and planetary transfer box inside the drums. Strips up/down brake on the every two drums
Towing winch capacity on the 2-nd winding coil of the rope on the reel, kN (tf)	6 500
Rope reel winding speed with 1400 r/min main engine rotation depending of the gearbox speed ratio turn on, m/s	1,4 -5,7
Hoist-swivel - feed pipe - (4-string polys past with 2x3 ratio) lifting speed depending of the gearbox speed ratio turn on, m/s	0,15 — 1,5
Rotor	RG-425 hydro driving with hydraulic off take from the well head
Max. torque kNm (kg*F/m)	1600
Rotation frequency of the rotation table (r/min)	18 - 220
Number of the driving speed, provided by the hydraulic scheme	9
Auxiliary winch with the tilt faucet	Hydraulic
Auxiliary winch towing capacity, kN(tf)	21,56 (2,2)
Feeding pipe	Round cross-section with guidelines
Kelly pipe diameter, mm	114x114
Kelly pipe length, m	11
Mast	Originally constructed with the open front flat, telescopic, vertical
Distance from the rotary table to the crown block axis, m, no more	18
Distance from the soil to the crown block axis, m, no more, m	18
Generator , KW	15
Drilling Pump	NB-50
Max. ideal feeding,m3/h (l/s)	11
Max. exit pressure, Mpa(kg/sm2)	6,3
pump	1
Swivel
Allowed load, KN(tf)	25 000
Diameter of swivel’s hole, mm	60
Drilling pipe length, m	6/12
Length of the setting pipe, m	12
Crown block	separated
-for the hoist block with the feeding pipe
Polyspast ratio	2x3, 4-strips mounting
Polyspast payload, kN (tf)	294,3(30)
- for the hoist block hoisting and drilling load cycles
Polyspast payload, kN (tf)	24,8 (25)
Well bottom weight and load control system	IVE-50
Max. ideal feeding, m3/h (l/s)	50,4 (14)
Max. exit pressure, MPa (kg/sm2)	10(102)
Overall dimensions (transport), mm
-length/width/height	12000/2500/3990
Overall drilling rig weight, kg	23 000

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URB-25 rotary drilling rig