Downhole drilling motor
DV850

Part number:

DV850.5.54

DV850.7.54

Legend:

Technical specification

Motor OD 8.5"
Part number DV850-R
Bit size (inches) 9.87…12.25
Max WOB (lbs) 88 185
Working overpull (lbs) 295 419
Absolute overpull (lbs) 694 456
Max operating torque (lb-ft) 37 612
Bit connection 6 ⅝ Reg
Pipe connection 6 ⅝ Reg
Max diameter of bearing section (inches) 8.00
Bend angle (°) 0…2
Power section part number DV850.5.54 DV850.7.54
Max stator diameter (inches) 8.50
Lower arm length (inches) 77
Motor length (inches) 333.46
Weight (lbs) 3 747 3 994

Energy characteristics

Motor OD 8.5"
Part number DV850.5.54 DV850.7.54
Lobes 5/6 7/8
Stator contour 5 000
Stages 6.0
Flow (gpm) 317…634 396…793
Speed at no-load (rpm) 75…150 70…140
Rotor (rpm) 0.063 0.046
Max differential pressure (psi) 953 982
Speed (rpm) 65…135 60…130
Torque (lb-ft) 7413…10487 8498…11992
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