Mud lubricated

With available sizes ranging from 111/16" to 95/8", SOKOL has the mud motor to fit a customer's specific needs. Power sections are available in a wide range of speeds and have Nitrile Butadiene Rubber (NBR) for standard requirements and also Hard Rubber (HR) for higher torque requirements.
Sales | Rental | Service inquires

Mud lubricated drilling motors

SOKOL Drilling motors and tools has been engineering and developing positive-displacement motors for use in today’s most complex and challenging drilling conditions for about 10 years. A mud motor (or drilling motor) is placed in the drill string to provide additional power to the bit while drilling. Drilling fluid is used to create eccentric motion in the power section of the motor which is transferred as con­centric power to the drill bit. The mud motor uses different rotor and stator configurations to provide optimum performance for the desired drilling operation, typically increasing the number of lobes and length of power assembly for greater horse­power.

With available sizes ranging from 111/16" to 95/8", SOKOL has the mud motor to fit a customer's specific needs. Power sections are available in a wide range of speeds and have Nitrile Butadiene Rubber (NBR) for standard requirements and also Hard Rubber (HR) for higher torque requirements. Stators with Oil-Resistant Elastomer (S) are recom­mended for oil-base muds while High-Temperature Elastomer (T) stator can be utilized at temperatures up to 180°C.

SOKOL`s Mud Motors are designed with a mud lubricated bearing assembly, which equip­ped with radial bearings comp­rised of tungsten carbide as well as a high precision, bi-directional angular contact bearing pack which is machined from the highest quality tool steel, that gives a uniform load distribution and high weight on bit capacity. Motor can be used with optional near bit stabilizer and equipped with 0 – 3° adjustable bend housing or fixed bent housing.

SOKOL has a full fleet of mud motors which can be used in horizontal, vertical and direc­tional applications. Our motors are designed to withstand the harshest of downhole drilling conditions, combining optimum performance, extreme reliability and cost-effectiveness.

Technical specification

Part
number
Bit size
(inches)
Max WOB
(lbs)
Working
overpull (lbs)
Absolute
overpull (lbs)
Max operating
torque (lb-ft)
Bit
connection
Pipe
connection
Max diameter of
bearing section (inches)
Bend
angle (°)
Max stator
diameter (inches)
Lower arm
length (inches)
DV168 1.87…2.75 1 13 28 362 З-35 (NC12) З-35 (NC12) 1.68 - 1.68 -
DV212 2.37…3.0 4 17 39 723 З-42 З-42 2.12 - 2.12 -
DV236 2.87…3.0 6 22 55 1 З-42 З-42 2.36 - 2.40 -
DV287 3.26…3.87 6 35 74 1 З-66 (2 ⅜ Reg) З-66 (2 ⅜ Reg)
З-65 (NC23)
3.00 0…2,5 2.87 38
DV295 3.26…3.87 11 35 74 1 З-66 (2 ⅜ Reg) З-66 (2 ⅜ Reg)
З-65 (NC23)
3.00 0…2,5 3.00 38
DV375 4.74…5.87 22 61 141 4 З-66 (2 ⅜ Reg)
З-76 (2 ⅞ Reg)
З-86 (NC31)
З-88 (3 ½ Reg)
З-66 (2 ⅜ Reg)
З-76 (2 ⅞ Reg)
З-86 (NC31)
З-73 (NC26)
4.00 0…2,5 3.85 48
DV378 4.5…4.88 14 57 136 4 З-66 (2 ⅜ Reg)
З-76 (2 ⅞ Reg)
З-76 (2 ⅞ Reg)
З-86 (NC31)
З-73 (NC26)
3.00 0…2,5 3.78 50
DV417 4.74…5.87 22 92 209 5 З-66 (2 ⅜ Reg)
З-76 (2 ⅞ Reg)
З-86 (NC31)
З-88 (3 ½ Reg)
З-66 (2 ⅜ Reg)
З-86 (NC31)
З-88 (3 ½ Reg)
З-73 (NC26)
4.00 0…2,5 4.17 50
DV475 5.62…7.0 26 94 220 6 З-88 (3 ½ Reg) З-101 (3 ½ FH)
З-102 (NC38)
4.00 0…2,5 4.76 55
DV650 8.37…9.87 35 136 286 19 З-117 (4 ½ Reg) З-133 (NC50) 6.00 0…2 6.50 69
DV675 8.37…9.87 55 154 352 21 З-117 (4 ½ Reg) З-133 (NC50)
3-147 (5 ½ FH)
7.00 0…2 6.90 72
DV826 9.87…14.75 88 286 661 36 З-152 (6 ⅝ Reg) З-152 (6 ⅝ Reg) 8.00 0…2 8.26 77
DV850 9.87…12.25 88 295 694 37 З-152 (6 ⅝ Reg) З-152 (6 ⅝ Reg) 8.00 0…2 8.50 77
DV962 11.25…26.00 88 352 815 43 З-152 (6 ⅝ Reg) З-152 (6 ⅝ Reg)
3-171 (6 ⅝ FH)
9.00 0…2 9.62 96
Part
number
Bit size
(mm)
Max WOB
(kgf)
Working
overpull (kgf)
Absolute
overpull (kgf)
Max operating
torque (kgf·m)
Bit
connection
Pipe
connection
Max diameter of
bearing section (mm)
Bend
angle (°)
Max stator
diameter (mm)
Lower arm
length (mm)
DV43 47,6…69,9 900 6 000 13 000 50 NC12 NC12 43.00 - 43.00 -
DV54 60,3…76,0 2 000 8 000 18 000 100 З-42 З-42 54.00 - 54.00 -
DV60 73,0…76,0 3 000 10 000 25 000 150 З-42 З-42 60.00 - 61.00 -
DV73 83,0…98,4 3 000 16 000 34 000 200 2 ⅜ Reg 2 ⅜ Reg
NC23
76.00 0…2,5 73.00 965
DV75 83,0…98,4 5 000 16 000 34 000 260 2 ⅜ Reg 2 ⅜ Reg
NC23
76.00 0…2,5 76.00 965
DV95 120,6…149,2 10 000 28 000 64 000 600 2 ⅜ Reg
2 ⅞ Reg
NC31
3 ½ Reg
2 ⅜ Reg
2 ⅞ Reg
NC31
NC26
106.00 0…2,5 98.00 1 209
DV96 114,3…124,0 6 500 26 000 62 000 570 2 ⅜ Reg
2 ⅞ Reg
2 ⅞ Reg
NC31
NC26
98.00 0…2,5 98.00 1 268
DV106 120,6…149,2 10 000 42 000 95 000 700 2 ⅜ Reg
2 ⅞ Reg
NC31
3 ½ Reg
2 ⅜ Reg
NC31
3 ½ Reg
NC26
106.00 0…2,5 106.00 1 250
DV120 142,8…177,5 12 000 43 000 100 000 950 3 ½ Reg 3 ½ FH
NC38
121.00 0…2,5 121.00 1 405
DV165 212,7…250,8 16 000 62 000 130 000 2 700 4 ½ Reg NC50 165.00 0…2 165.00 1 740
DV172 212,7…250,8 25 000 70 000 160 000 3 000 4 ½ Reg NC50
5 ½ FH
178.00 0…2 176.00 1 815
DV210 250,8…374,6 40 000 130 000 300 000 5 000 6 ⅝ Reg 6 ⅝ Reg 210.00 0…2 210.00 1 960
DV216 250,8…311,0 40 000 134 000 315 000 5 200 6 ⅝ Reg 6 ⅝ Reg 216.00 0…2 216.00 1 960
DV240 285,8…660,4 40 000 160 000 370 000 6 000 6 ⅝ Reg 6 ⅝ Reg
6 ⅝ FH
240.00 0…2 244.00 2 430

Features & Benefits

  • Sizes from 111/16" to 95/8"
  • Higher operating temperatures
  • Operates in a wide variety of drilling fluids
  • Nitrile Butadiene Rubber (NBR) or Hard Rubber (HR)
  • High-strength radial bearings
  • 0 – 3° Adjustable bent assembly or fixed bent housing
  • Effective catcher assemblies for bearing and power sections
  • Heavy-duty oil-sealed transmission shafts
  • Can be equipped with stabilizers, filters, bypass and float valves
  • Cost savings
  • Certified in accordance with ISO 9001-2008 (180 9001:2008) and Russian «Certification system of oil and gas field equipment» GOST R
This Website and information presented on this Website is the property of “Product Firm Sokol”, LLC.
Regardless of the above the Company makes no warranties about accuracy of the Website contents (including any information provided by third-party on behalf of the Company) and also takes no liability and no responsibility for correction and alteration of the Website contents henceforth.
Create by: Ckdigital
Visit us at ADIPEC 2017! Stand № 3130, hall № 3
Join US