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Extreme power downhole drive for RSS assist

General Description
General Description Features & Benefits Specifications Related Resources
Most robust, reliable and time proven design
Reinforced axial multi-row bearings
Proprietary in-house developed rubber compounds from leading manufacturers with highest properties
Most cost effective motors available on the market
High-quality materials for the manufacture of all parts and components
Heavy duty drive shaft of in-house design
Use of high quality adhesives
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General Description
Positive displacement motor (downhole drilling motor) is designed for driving the bit downhole adding more RPM and torque to be able to cut formations more efficiently and faster.

Motors can also be used for workover and well cleaning operations, as well as coil tubing and through tubing applications.

SDT company is capable to manufacture all the motor sizes, however our initial focus is to design and develop most robust and efficient slim size motors ranging from 2 7/8” to 5” size including RSS assist applications.

Features & Benefits
Most robust, reliable and time proven design
High-quality materials for the manufacture of all parts and components
Reinforced axial multi-row bearings
Heavy duty drive shaft of in-house design
Proprietary in-house developed rubber compounds from leading manufacturers with highest properties
Use of high quality adhesives
Most cost effective motors available on the market
Specifications
SDT-SDM300.4544 SDT-SDM475.7838 SDT-SDM500.7833 SDT-SDM675.7864
Tool size, in 3 4,75 5 6 3/4
Max Housing OD, in 3 5.0 5 8.0
Length to Stabilizer (C), in – 20.9 – 19 1/2
Length to bend (B), in – 59.6 – 70.6
Overall length (A), in 182.4 290.1 325.4 375.6
Power Section Length, in 78.7 187.0 236.2 246.2
Weight, lbs 238 1 126 3 090 3 090
Spindle type Mud lubricated Mud lubricated Mud lubricated Mud lubricated
Bent angles 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°, 2.60°, 2.77°, 2.90°,  2.97°, 3.00° 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°, 2.60°, 2.77°, 2.90°, 2.97°, 3.00°
Bit sizes range, in 3 1/4 – 3 7/8 5 7/8 – 7 7/8 5 1/2 – 7 8 3/8 – 9 7/8
Connecting threads:
Bit box 2 3/8 Reg 3 1/2 Reg NC38 (pin) 4 1/2 Reg
Top sub 2 3/8 Reg NC38 NC38 (box) NC50
Recommended make-up torque:
to bit:
2 3/8 Reg
ft-lbs/kN-m		 1 844 – 3 467 10 178 – 10 915 6 600 – 9 600 11 800 – 16 250
to pipe:
2 3/8 Reg
ft-lbs/kN-m		 1 770 – 3 170 6 600 – 9 600 6 600 – 9 600 33 190 – 35 400
Adjustable bent housing, ft-lbs – 8 850  – 9 600 – 23 340 – 29 500
Lobes 4/5 7/8 7/8 7/8
Stages 4.4 3.8 3.3 6.4
Flow rate, gpm 48-79 159-301 100 – 400 396-571
Speed Ratio, rev/gal 5 0.511 0.280 0.280
No-load RPM 240-396 81-155 32 – 126 111-160
Differential pressure on full load mode, psi 667 667 870 1 117
Torque Ratio, ft-lbs/psi 0.53 4.81 7.82 8.76
Torque at full load mode, ft-lbs 310 3 205 6 800 9 780
Torque at max. power mode, ft-lbs 465 4 807 10 200 14 670
Power on full load mode, hp 22 94 148 298
Power at max. power mode, hp 27 141 192 447
WOB, max, lbs 5 600 13 200 31 500 39 600
Max Body Overpull, lbs 69 700 189 200 225 000 497 200
Max Bit Overpull, lbs 42 700 110 000 123 650 308 000

 

SDT-SDM962.5650 SDT-SDM962.7850
Tool size, in 9 5/8 9 5/8
Max Housing OD, in 9 5/8 9 5/8
Length to Stabilizer (C), in 32.8 32 1/2
Length to bend (B), in 95.2 95.2
Overall length (A), in 385.9 34.1
Power Section Length, in 220.5 244.1
Weight, lbs 6 178 5 690
Spindle type Mud lubricated Mud lubricated
Bent angles 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°,
2.60°, 2.77°, 2.90°, 2.97°, 3.00°		 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°, 2.60°,
2.77°, 2.90°, 2.97°, 3.00°
Bit sizes range, in
12 1/4-17 1/2 12 1/4-17 1/2
Connecting threads:
Bit box 6 5/8Reg / 7 5/8Reg 6 5/8Reg / 7 5/8Reg
Top sub 6 5/8Reg / 7 5/8Reg 6 5/8Reg / 7 5/8Reg
Recommended makeup torque:
to bit:
6 5/8Reg
7 5/8Reg
ft-lbs		 28 000 – 32 450
33 900 – 39 800		 58 229-62 362
59 005-62 693
to pipe:
6 5/8Reg
7 5/8Reg
ft-lbs		 51 600 – 54 600
86 300 – 89 250		 51 808-55 498
59 005-62 693
Adjustable bent housing, ft-lbs 47 940 – 57 530 47 970-57 565
Lobes 5/6 7/8
Stages 5.0 5.0
Flow rate, gpm 634-951 555-1 189
Speed Ratio, rev/gal 0.147 0.134
No-load RPM 95-140 72-154
No-load Pressure, min, psi 230 870
Differential pressure on full load mode, psi 870 18.9
Torque Ratio, ftlbs/psi 16.6 16 445
Torque at full load mode, ft-lbs 14 456 24 667
Torque at max. power mode, ft-lbs 21 684 482
Power at max. power mode, hp 578 722
WOB, max, lbs 88 185 88 185
Max Body Overpull, lbs 1056K 1058K
Max Bit Overpull, lbs 558 800 558 800
SDT-SDM300.4544 SDT-SDM475.7838 SDT-SDM500.7833 SDT-SDM675.7864
Tool size, mm 76 120 127 172
Max Housing OD, mm 76 128 127 178
Length to Stabilizer (C), mm – 531 – 487
Length to bend (B), mm – 1 514 – 1 794
Overall length (A), mm 4630 7 369 8 267 9 540
Power Section Length, mm 2000 4 750 6 000 6 253
Weight, kg 108 512 1 402 1 402
Spindle type Mud lubricated Mud lubricated Mud lubricated Mud lubricated
Bent angles 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°, 2.60°, 2.77°, 2.90°,  2.97°, 3.00° 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°, 2.60°, 2.77°, 2.90°, 2.97°, 3.00°
Bit sizes range, mm 83 – 98,4 149.2 – 200.0 139.7 – 177.8 212.7 – 250.8
Connecting threads:
Bit box 2 3/8 Reg 3 1/2 Reg NC38 (pin) 4 1/2 Reg
Top sub 2 3/8 Reg NC38 NC38 (box) NC50
Recommended make-up torque:
to bit:
2 3/8 Reg
kN-m		 2.5 – 4.7 13,8-14,8 9-13 16-22
to pipe:
2 3/8 Reg
kN-m		 2.4 – 4.3 9-13 9-13 45-48
Adjustable bent housing, kN-m – 12 – 13 – 33 – 40
Lobes 4/5 7/8 7/8 7/8
Stages 4.4 3.8 3.3 6.4
Flow rate, lpm 180-300 600-1 140 378 – 1 515 1 500-2 160
Speed Ratio, rev/l 1.33 0.135 0.074 0.074
No-load RPM 240-396 81-155 32 – 126 111-160
Differential pressure on full load mode, Mpa 4.6 4.6 6.00 7.7
Torque Ratio, kN-m/Mpa 0.11 0.943 1.54 1.72
Torque at full load mode, kN-m 0.42 4.342 9.22 13.252
Torque at max. power mode, kN-m 0.63 6.513 13.83 19.878
Power on full load mode, kW 16 70 109 222
Power at max. power mode, kW 20 105 141 333
WOB, max, kN 25 60 140 180
Max Body Overpull, kN 310 860 1 000 2 260
Max Bit Overpull, kN 190 500 550 1 400

 

SDT-SDM962.5650 SDT-SDM962.7850
Tool size, mm 244 244
Max Housing OD, mm 244 244
Length to Stabilizer (C), mm 834 835
Length to bend (B), mm 2 419 2 419
Overall length (A), mm 9 801 10 401
Power Section Length, mm 5 600 6 200
Weight, kg 2 808 2 581
Spindle type Mud lubricated Mud lubricated
Bent angles 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°,
2.60°, 2.77°, 2.90°, 2.97°, 3.00°		 0°, 0.38°, 0.78°, 1.15°, 1.50°, 1.83°, 2.12°, 2.38°, 2.60°,
2.77°, 2.90°, 2.97°, 3.00°
Bit sizes range, mm
311.1-444.5 311.1-444.5
Connecting threads:
Bit box 6 5/8Reg / 7 5/8Reg 6 5/8Reg / 7 5/8Reg
Top sub 6 5/8Reg / 7 5/8Reg 6 5/8Reg / 7 5/8Reg
Recommended makeup torque:
to bit:
6 5/8Reg
7 5/8Reg
kN-m		 38-44
46-54.0		 78.9-84.5
80.0-85.0
to pipe:
6 5/8Reg
7 5/8Reg
kN-m		 70-74
117-121		 70.2-75.2
80.0-85.0
Adjustable bent housing, kN-m 65-78 65-78
Lobes 5/6 7/8
Stages 5.0 5.0
Flow rate, lpm 2 400-3 600 2 100-4 500
Speed Ratio, rev/l 0.04 0.03
No-load RPM 95-140 72-154
No-load Pressure, min, Mpa 1.4 6
Differential pressure on full load mode, Mpa 6 3.72
Torque Ratio, kNm/Mpa 3.267 22.296
Torque at full load mode, kN-m 19.6 33.44
Torque at max. power mode, kN-m 29.4 360
Power at max. power mode, kW 431 539
WOB, max, kN 400 400
Max Body Overpull, kN 4 800 4 800
Max Bit Overpull, kN 2 540 2 540
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