Downhole Screw Meter

downhole-screw-motors.jpg

 

The downhole screw motor is a kind of power tool that transforms the pressure of liquid to mechanical energy in the downlole. When the power liquid flows into the screw motor, a pressure difference will be produced between the inlet and outlet of the motor, the differential pressure drives the motor rotating round the stator, provide torque moment and speed to the drill bit, thus the drilling process is being performed. The drill pipe is not rotating during work process, so the advantages are obvious if comparing with conventional drilling system. The downhole screws motor is suitable for vertical, directional and horizontal well.

 

Specifications of Downhole Screw Meter
Model Flow Rate I/S Pressure Difference MPa Rating Torque Nx m Max Torque Nx m Bit Weight kN Power kW Diameter mm(in) Length m Weight kg
5LZ60X7.0  1.26~3.13 2.5 160 280 5 2.35~6.03 60(2 3/8) 3.3 70
5LZ73X7.0 1.26~5.05 3.5 275 480 12 3.5~13.82 73(2 7/8) 3.45 80
5LZ89X7.0 2~7 4.1 560 980 18 5.6~19.35 89(3 1/2) 4.67 150
5LZ95X7.0 4.73~11.04 3.2 850 1240 21 10.4~23.79 95(3 3/4) 3.2 160
C5LZ95X7.0 5~13.33 6.5 1490 2384 55 21.8~59.3 95(3 3/4) 6.88 300
5LZ100X7.0 4.73~11.04 3.2 850 1240 21 10.4~23.79 100(3 7/8) 4.7 200
5LZ120X7.0 5.78~15.8 2.5 1300 2275 55 9.5~27.23 120(4 3/4) 4.88 400
D5LZ100X7.0 5.78~15.8 1.6 900 1440 55 6.6~18.85 120(4 3/4) 3.29 350
5LZ165X7.0 16~28(47) 3.2 3200 5600 80 33.5~59.65 165(6 1/2) 6.25 830
D7LZ165X7.0 18~28 2.5 2300 3680 80 30.4~47.2 165(6 1/2) 4.7 700
5LZ172X7.0 18.9~37.8 3.2 3660 5856 100 38.3~76.6 172(6 3/4) 6.71 950