DR-240.NGT.3/4.62.М1

Description

PDM DR-240.NGT.3/4.62.M1 is a new universal hydraulic downhole motors used for drilling of oil and gas wells with rock and PDC bits of 295.3 – 374.6 mm diameter.

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°.

The bearing section has multi-row thrust ball bearing of enhanced load-carrying capacity and radial hard alloy bearings.

PDMs are completed with imported extended power sections with enhanced operation life. The overhaul life reaches approximately 200 hrs.

PDMs can be completed with replaceable centralizer:

Centralizer

Technical and power
specifications

Technical specification

Housing OD, mm	240/244
Power section lobe configuration	3/4
PDM length, mm	10 432
Length of stator rubber lining, mm	6 200
Length of bearing section up to a curvature point, mm	2 478
Diameter of bits used, mm	295,3-444,5
Connecting thread to drill pipes	З-171
Connecting thread to bits	З-152
Maximum density of drilling mud, g/cm3	1,9
Allowed axial load, kN	400
Weight, kg	2 761

 
Power specification

Working fluid flow rate, l/s	22-45
Output shaft rotation speed:
- in no-load conditions, RPM	75-151
Torque at maximum power, kN*m	15,3
Pressure drop:
- at maximum power, MPa	6,8
Power, kW	179

Outline drawing

Comparison
of specifications

Parameter

Technical specification:

Housing OD, mm

Power section lobe configuration

PDM length, mm

Length of stator rubber lining, mm

Length of bearing section up to a curvature point, mm

Diameter of bits used, mm

Connecting thread to drill pipes

Connecting thread to bits

Maximum density of drilling mud, g/cm3

Allowed axial load, kN

Weight, kg

Power specification:

Working fluid flow rate, l/s

Output shaft rotation speed:

- in no-load conditions, RPM

Torque at maximum power, kN*m

Pressure drop:

- at maximum power, MРa

Power, kW

DR-240.NGT.3/4.62.M1	DR-240.NGT.3/4.63.М1	DR-240.NGT.5/6.63.М1
240/244	240/244	240/244
3/4	3/4	5/6
10 432	10 520	10 520
6 200	6 300	6 300
2 478	2 478	2 478
295,3-444,5	295,3-444,5	295,3-444,5
З-171	З-171	З-171
З-152	З-152	З-152
1,9	1,9	1,9
400	400	400
2 761	2 784	2 784
22-45	22,4-44,8	27,5-45
75-151	75-150	64-129
15,3	14,8	19,3
6,8	6,8	6,8
179	179	234

Download

Description and specification of DR-240.NGT.3/4.62.М1 (0.3 MB, pdf)