Downhole drilling motor
DV172

Part number:

DV172.4.54

DV172.5.54

DV172.6.44

DV172.6.54

DV172.7.49

DV172.7.55

DV172.7.58

DV172.7.66

Legend:

Technical specification

Motor OD 172
Part number DV172-R
Bit size (mm) 212,7…250,8
Max WOB (kgf) 25 000
Working overpull (kgf) 70 000
Absolute overpull (kgf) 160 000
Max operating torque (kgf·m) 3 000
Bit connection 4 ½ Reg
Pipe connection NC505 ½ FH
Max diameter of bearing section (mm) 178.00
Bend angle (°) 0…2
Power section part number DV172.4.54 DV172.5.54 DV172.6.44 DV172.6.54 DV172.7.49 DV172.7.55 DV172.7.58 DV172.7.66
Max stator diameter (mm) 176.00
Lower arm length (mm) 1 815
Motor length (mm) 8430.00 7430.00 8430.00 7970.00 8530.00 8830.00 9630.00
Weight (kg) 1 268 1 215 1 085 1 330 1 155 1 236 1 310 1 375

Energy characteristics

Motor OD 172
Part number DV172.4.54 DV172.5.54 DV172.6.44 DV172.6.54 DV172.7.49 DV172.7.55 DV172.7.58 DV172.7.66
Lobes 4/5 5/6 6/7 7/8
Stator contour 5 000 4 000 5 000 4 500 5 200 5 500 6 200
Stages 7.0 6.0 7.6 8.0 5.0 6.0
Flow (l/s) 19…37
Speed at no-load (rpm) 140…275 115…225 175…340 190…250 85…170 90…180 85…170 75…150
Rotor (rpm) 0.124 0.102 0.153 0.112 0.075 0.080 0.075 0.067
Max differential pressure (kgf/cm²) 74 67 104 95 51 53 56 59
Speed (rpm) 100…205 70…190 145…290 168…220 70…140 80…150 70…140 65…135
Torque (kgf·m) 620…870 620…890 790…1200 970…1320 860…1200 920…1300 1050…1470 1100…1590
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