PDM DR-165.NGT.7/8.69.М1 is a new universal hydraulic downhole motor used for drilling of oil and gas wells with 190,5 – 250,8 mm rock and PDC bits.
An adjustable bent sub is placed between bearing section and power section. The adjustment range is between 0° and 2° or between 0° and 3°.
Bearing section has multi-row thrust ball bearing of enhanced load-carrying capacity and radial hard alloy bearings. The PDM is completed with imported extended power sections with enhanced operation life.
Due to a very short shoulder up to the point of axes misalignment (only 1800 mm) drillers can:
- perform tripping without significant pressing of a bit to internal walls in the production string;
- perform sidetracking of complex profile where it is required to alternate deviated intervals of more than 5°/10 m built rate and stabilization intervals with rotation of a drill string without the assembly tripping-out to replace the bend angle;
- minimize risk of leaving the motor parts in the well, as all the threads are screwed applying Loctite glue, and each motor is completed with safety sub;
- do a large volume of work with one motor (it is especially important for hard-to-reach regions) as the overhaul life reaches approximately 200 hrs.
- Technical and power
Housing OD, mm 165 Power section lobe configuration 7/8 PDM length, mm 10 271 Length of stator rubber lining, mm 6 880 Length of bearing section up to a curvature point, mm 1 856 Diameter of bits used, mm 190,5-250,8 Connecting thread to drill pipes З-133 Connecting thread to bits З-117 Maximum density of drilling mud, g/cm3 1,9 Allowed axial load, kN 250 Weight, kg 1 283
Working fluid flow rate, l/s 17-38 Output shaft rotation speed: - in no-load conditions, RPM 71-160 Torque at maximum power, kN*m 13,1 Pressure drop: - at maximum power, MPa 7 Power, kW 197
- Outline drawing
Parameter DR-165.NGT.7/8.58.М1 DR-165.NGT.7/8.69.М1 Technical specification: Housing OD, mm 165 165 Power section lobe configuration 7/8 7/8 PDM length, mm 9 111 10 271 Length of stator rubber lining, mm 5 720 6 880 Length of bearing section up to a curvature point, mm 1 856 1 856 Diameter of bits used, mm 190,5-250,8 190,5-250,8 Connecting thread to drill pipes З-133 З-133 Connecting thread to bits З-117 З-117 Maximum density of drilling mud, g/cm3 1,9 1,9 Allowed axial load, kN 250 250 Weight, kg 1 138 1 283 Power specification: Working fluid flow rate, l/s 17-38 17-38 Output shaft rotation speed: - in no-load conditions, RPM 71-160 71-160 Torque at maximum power, kN*m 10,9 13,1 Pressure drop: - at maximum power, MРa 7 7 Power, kW 164 197
Description and specification of DR-165.NGT.7/8.69.М1 (0.3 MB, pdf)