NOI HEX 150 Mud Pump

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Power side: built to last

Camshaft: Forged from special cast steel, its running surface is precision machined and specially heat treated to withstand extreme cyclic stress.

Bearings: The system employs precision bearing assemblies from FAG and INA, including tapered roller thrust bearings for axial force, cylindrical roller bearings for radial guidance, and preloaded angular contact ball thrust bearings. The cam rollers themselves incorporate preloaded tapered roller bearing units to handle substantial axial and radial loads.

Small gear shaft: supported by two cylindrical roller bearings and one four-point contact bearing to ensure stable and efficient power transmission.

Lubrication system: A comprehensive oil circulation system provides forced lubrication for all rolling bearings, while splash lubrication is used for linear guides to ensure optimal heat dissipation and performance.

Hydraulic end:Deal with high pressure calmly

Module Materials: The hydraulic end module is manufactured from high-strength forged alloy steel (35CrMo or 40CrMnMo), a standard configuration for premium hydraulic end components in the industry. These forged parts ensure material integrity with no welds, interlayers, or cracks.

Heat treatment: All key components are subjected to multiple advanced heat treatment processes, including carburizing and quenching, to enhance wear resistance and durability. The surface hardness of valve components can reach HRC≥60.

Valve group system: The innovative cylinder valve group system is not only reliable in performance, but also greatly simplifies the maintenance procedure and shortens the replacement time.

Manufacturing and Quality Assurance: Comply with API 7K standards

API 7K Compliance: All components are manufactured in strict compliance with API 7K standards, ensuring product safety and interchangeability.

Advantages of forging: All critical pressure-bearing components are forged. Compared with casting, forging can make the grain structure of metal more dense and oriented, thus providing excellent strength, impact toughness and fatigue resistance, which is crucial for high pressure and high frequency applications.

Non-destructive testing (NDT): All critical components are subjected to strict non-destructive testing, including ultrasonic and penetrant testing, during production to ensure that there are no internal defects.

Precision machining: Advanced CNC (Computer Numerical Control) machine tools are used for precision machining to ensure all parts meet precise tolerances, achieving perfect sealing and interchangeability.

We provide comprehensive support for the NOI HEX 150 to ensure optimal performance throughout its entire lifecycle.

High-performance wear parts

Piston and Sealing: The HEX pump features six 4.5-inch pistons made of industry-leading bonded polyurethane or nitrile rubber. These materials are specifically engineered for high-pressure operations and diverse drilling fluid environments, offering exceptional wear resistance and chemical corrosion resistance.

Valve and Seat: The innovative cylinder valve assembly is fabricated from high-strength forged alloy steels (e.g., AISI 4119,20CrMnTi) and undergoes deep carburizing treatment to achieve exceptional surface hardness and wear resistance.

Cylinder liner: Note that the cylinder liner is not a standard wear part of this pump. HEX pumps feature a fixed 4.5-inch piston/cylinder diameter design, which eliminates the need for liner replacement and associated downtime and spare parts inventory costs, representing a key TCO advantage.

Table 2: Key wear parts and spare parts

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System Attachments and Integration

Injection Pump: Like all high-performance mud pumps, the HEX 150 requires a centrifugal injection pump of appropriate size to ensure positive pressure in the suction manifold. We offer compatible injection pump models (e.g., Mission Magnum).

Cylinder liner flushing system: Standard cylinder liner flushing system is provided to cool and lubricate the piston and sealing parts, effectively prolonging their service life.

Field verification: application areas and strategic advantages

The design advantages of NOI HEX 150 translate into tangible operational and financial benefits across multiple critical application scenarios.

Deepwater and high-tech drilling

In high-cost environments like ultra-deepwater exploration and development, high-quality MWD/LWD data is critical. The HEX 150's near-zero pulsation characteristics provide an exceptionally clear signal path for mud pulse telemetry, reducing drilling risks and improving reservoir navigation, ultimately enhancing the overall value of oil wells.

Large displacement/high pressure operation

Whether performing extended reach drilling (ERD), high-flow hole cleaning, or motorized pressure drilling (MPD), operational parameters may fluctuate frequently. The HEX 150's AC variable frequency drive flexibility allows operation at any point on its performance curve without mechanical modifications. The drilling team can swiftly switch from high-pressure drilling mode to high-flow hole cleaning mode, eliminating the hours-long downtime required for replacing cylinder liners in traditional three-cylinder pumps.

Upgrading offshore platforms and drilling rigs

For drilling rig upgrades and new compact offshore platform designs where space and load-bearing capacity are critical, the HEX 150's weight and footprint advantages are decisive. It enables three HEX pumps to be installed in a space originally designed for two three-cylinder pumps, delivering 50% additional hydraulic horsepower while achieving N+1 redundancy. This capability may be the key factor enabling drilling rigs to undertake more demanding drilling contracts.

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