Downhole drilling motor
DV378

Part number:

DV378.5.33

DV378.6.33

DV378.6.43

DV378.7.33

DV378.7.43

DV378.7.53

Legend:

Technical specification

Motor OD 3.78"
Part number DV378-R
Bit size (inches) 4.5…4.88
Max WOB (lbs) 14 330
Working overpull (lbs) 57 320
Absolute overpull (lbs) 136 686
Max operating torque (lb-ft) 4 123
Bit connection 2 ⅜ Reg2 ⅞ Reg
Pipe connection 2 ⅞ RegNC31NC26
Max diameter of bearing section (inches) 3.00
Bend angle (°) 0…2,5
Power section part number DV378.5.33 DV378.6.33 DV378.6.43 DV378.7.33 DV378.7.43 DV378.7.53
Max stator diameter (inches) 3.78
Lower arm length (inches) 50
Motor length (inches) 209.44 248.81 209.44 248.81 288.18
Weight (lbs) 560 525 659 532 654 761

Energy characteristics

Motor OD 3.78"
Part number DV378.5.33 DV378.6.33 DV378.6.43 DV378.7.33 DV378.7.43 DV378.7.53
Lobes 5/6 6/7 7/8
Stator contour 3 000 4 000 3 000 4 000 5 000
Stages 5.0 3.0 4.0 4.2 5.6 7.0
Flow (gpm) 79…158
Speed at no-load (rpm) 180…340 85…170 100…200 105…210
Rotor (rpm) 0.560 0.280 0.330 0.350
Max differential pressure (psi) 669 825 882 910 1 024 1 053
Speed (rpm) 135…270 60…120 60…170 90…180
Torque (lb-ft) 1157…1519 1085…1664 940…2025 1049…1844 1302…2314 1627…3038
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