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8 '' Directional Drilling Downhole Mud Motor For HDD Service 7 / 8 Lobes 4.0 Stages

Xi'An Tiptop Machinery Co., Ltd.
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Xi'An Tiptop Machinery Co., Ltd.

8 '' Directional Drilling Downhole Mud Motor For HDD Service 7 / 8 Lobes 4.0 Stages

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Product Details

8'' Directional Drilling Downhole Mud Motor for HDD Service, 7/8 lobes, 4.0 stages

 

 

Downhole mud motor is a kind of downhole dynamic drilling tool drove by the hydraulic power of drilling mud. Downhole motor consists of five assemblies, such as by-pass valve, Anti-drop assembly, motor, universal coupling and drive shaft. Mud stream from the outlet of mud pump flows through a by-pass valve into the motor. This stream produces pressure loss at both inlet and outlet of the pump, to push the rotor into rotating, and to transmit the torque and speed onto the bit. The downhole motor property mainly depends upon its property parameters.

 

Tiptop downhole mud motor adopts near bit structure, adjustable universal coupling housing, stabilizers with different sizes, types and structures, and also universal coupling specially designed for large drill bit & large torque with larger torque bearing capacity, better impact resistance performance and running stability, and integral or interchangeable stabilizers with different sizes are available.

 

The Major Parts:

Power Section Assy. (Stator and Rotor): with stable performance during long term operation.

Drive Shaft Assy.: Utilizing high quality materials including forged steel drive shafts, and Tungsten carbide radial bearings which significantly reduces wear and improves durability and consistency in performance.

 

8" SDMM (203mm Downhole Mud Motor)

-Complete with bearing assembly;

-Having bit box connection 6-5/8’’REG;

-Screw on stabilizer 12 1/8’’ straight 5 nos. blades;

-Adjustable assy, connecting rod assy;

-Power section having configuration 7/8 lobes, 4.0 stages;

-With catch rod mechanism & crossover sub having box connection 6 5/8’’ REG;

-Stator elastomer compatible to resist temperature up to 120 Deg C.

 

Specification

NameDownhole Mud Motor
Model7LZ203 x 7/4
SizeФ203 (Stabilizer Ф308)
Minor DiameterФ114.98 mm
Lobes of Stator8
Wave Crest-Trough ODФ115.66 mm
Lobes of Rotor7
Trough Chrome plating thickness0.12mm
Crest Chrome plating thickness0.25mm
Stator & Rotor Interference0.68mm
Pressure Difference Inspection3.8MPa
Connected Thread Up6 5/8'' REG
Connected Thread Down6 5/8'' REG

 

Models

ModelTool ODBit SizeConnection ThreadLobeStage
mminmminTopBottom
LZ203x7.0-4-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG1:24
C4LZ203x7.0-6-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG4:55
4LZ203x7.0-6-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG4:56
5LZ203x7.0-4-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG5:64
5LZ203x7.0-5-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG5:65
5LZ203x7.0-5-9002038251-3119 7/8-12 1/45 1/2REG6 5/8REG5:65
5LZ203x7.0-6-9002038251-3119 7/8-12 1/45 1/2REG6 5/8REG5:66
7LZ203x7.0-5-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG7:85
9LZ203x7.0-4-8402038251-3119 7/8-12 1/45 1/2REG6 5/8REG9:104
C9LZ203x7.0-4-10502038251-3119 7/8-12 1/45 1/2REG6 5/8REG9:104

 

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