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T2-195.NGT.M1 and T3-195.NGT.M1

Description

The turbodrill incorporates two (T2-195.NGT.M1) or three (T3-195.NGT.M1) turbine sections and bearing section. Medium speed turbine is used in the turbine sections.

The turbodrill bearing section operates in mud medium and has a combined axial bearing: multi-row thrust ball bearing with toroidal raceways and rubber-metal heals. Friction surfaces of radial bearings are reinforced with plates made of hard alloy. This allows reaching high power characteristics and increased overhaul life.

Technical and power
specifications

Turbodrill specification

Code of turbodrill T2-195.NGT.M1 T3-195.NGT.M1
OD of threaded connections, mm 195
Diameters of bits used, mm 215,9-250,8
Turbodrill length, mm 17 915 25 280
Length of top turbine section, mm 7 600 7 600
Length of middle turbine section, mm 7 365 7 365
Length of middle turbine section, mm - 7 365
Length of bearing section, mm 2 950 2 950
Connecting thread to drill pipes З-147  
Connecting thread to bit З-117
Max. density of mud, g/cm3 1,9
Max. axial load, kN 250
Weight, kg 3 340 4 720
Max. temperature in well, °C 110


Turbodrill power characteristic

Quantity of turbine sections, pc. 2 3
Mud flow rate, l/sec 32-36 32-36
Mud density, g/cm3 1,0
Stall torque, N*m 2240-2835 3360-4252
Speed of rotation at operating condition, min-1 411-463 411-463
Pressure drop, MРa 3,0-3,7 4,4-5,6
Max. power, kW 52-71 75-107
Outline drawing

Comparison
of specifications
Параметр
Technical specification:
Dia. of bits used, mm
Length, mm
Connecting thread to drill pipes
to bit
Rage of bend angles, deg
Weight, kg
Power specification:
Quantity of turbine sections, pcs Turbine
Bearing section
Quantity of turbine stages in turbodrill, psc
Mud flow rate, l/sec
Speed of rotation at operating condition, min-1
Stall torque, N*m
Pressure drop, MPa
Max. power, kW
T2-195.NGT.M1 T3-195.NGT.M1 T2-195.NGT.M2 T3-195.NGT.M2
 
215,9-250,8 215,9-250,8 215,9-250,8 215,9-250,8
17 915 25 280 17 915 25 280
З-147 З-147 З-147 З-147
З-117 З-117 З-117 З-117
- - - -
3 340 4 720 3 340 4 720
 
2 3 2 3
1 1 1 1
220 330 220 330
32-36 32-36 32-36 32-36
2240-2835 3360-4252 3151-3988 4726-5982
411-463 411-463 594-669 594-669
3,0-3,7 4,4-5,6 4,0-5,1 6,0-7,6
52-71 75-107 92-132 139-197


Note: turbodrill power characteristics are given at mud density of 1.0 g/cm3

Download
Description and specification of T2-195.NGT.M1 и T3-195.NGT.M1 (0.1 MB, pdf)