GRINDSTONE Series Pumps

In the dynamic, harsh downhole conditions common to unconventional oil wells, you need a proven, reliable electrical submersible pump to minimize interventions and down time. GRINDSTONE™ series pumps are built to extend the life of your UNBRIDLED® ESP Systems.

UNBRIDLED® ESP Systems White Logo

Keep your wells pumping with proven, effective technology

Range utility rate icon pointing up.

Improve up time

Limit shutdowns and pump reliability with enhanced bearing designs.

Icon of a hand holding an upward graph.

Limit ESP change outs

Keep your ESP in the well longer with an expanded operating range.

Icon of a truck carrying utilities.

Simplify installations

Speed install time and limit installation challenges.

Choose the pump that meets all of your production challenges

GRINDSTONE series submersible pumps cover a wide range of flow rates to help you efficiently meet your production goals. With pumps that produce down to 200 BPD, you can maximize reservoir draw down to extend production.

The hardened bearing system central to the the GRINDSTONE pump design is available in three configurations, including:

  • Standard: Enhanced bearings in the pump’s head and base
  • Harsh: An enhanced bearing is added for every three pump stages
  • eXtreme: An enhanced bearing is added for every pump stage

UNBRIDLED ESP Systems offers high-volume, multi-flow pumps for the benign conditions typical in conventional wells and the harsh, dynamic downhole environments that characterize unconventional wells.

The smooth flow pattern of mixed-flow ESP pumps prevents solids plugging, mitigates erosive wear from abrasives, and improves gas handling.

Orange wellhead icon.

Flow rates from 200 BPD to 10,500 BPD

GRINDSTONE series submersible pumps cover a wide range of flow rates to help you efficiently meet your production goals. With pumps that produce down to 200 BPD, you can maximize reservoir draw down to extend production.

300 degree temperature with a thermometer.

Standard, harsh, and eXtreme configurations

The hardened bearing system central to the the GRINDSTONE pump design is available in three configurations, including:

  • Standard: Enhanced bearings in the pump’s head and base
  • Harsh: An enhanced bearing is added for every three pump stages
  • eXtreme: An enhanced bearing is added for every pump stage

Circular icon with a reusable symbol of arrows pointing upwards.

Designed for conventional and unconventional wells

UNBRIDLED ESP Systems offers high-volume, multi-flow pumps for the benign conditions typical in conventional wells and the harsh, dynamic downhole environments that characterize unconventional wells.

Range utility rate icon pointing up.

Mixed-flow stage design

The smooth flow pattern of mixed-flow ESP pumps prevents solids plugging, mitigates erosive wear from abrasives, and improves gas handling.

Reliable, flexible pumps keep your ESP in the well, where it belongs

The enhanced hardened bearing system at the heart of GRINDSTONE pumps enhances the reliability and operating range of UNBRIDLED ESP Systems to help achieve your production targets while lowering your operating expenses.

Improve Uptime

  • Enhanced hardened bearing system mitigates the impact of abrasives and limits vibration
    • Provides thrust and radial support throughout the pump to mitigate shaft vibration
    • Limits pump shaft thrust load on the protector. Limits pump shaft thrust load on the protector
    • Improves abrasives handling
  • Mixed-flow design prevents pump plugging and erosive wear
  • Standard and corrosion-resistant metallurgies are available

Limit ESP change outs

  • Enhanced bearing system extends the ESP operating range
    • As production declines, GRINDSTONE pumps can handle the corresponding higher pressure and force in the pump

Simplify Installations

  • Unlike compression pumps, GRINDSTONE pumps are fully assembled in a service center, not at your wellsite
    • Eliminates potential for errors
    • Reduces rig time
Hardness Comparison graph.

In benign well conditions, you need proven performance at the right price–we have you covered

In conventional wells with benign downhole environments, our BLACKGOLD™ pump series offers reliable performance at the right price to extend the economic life of your asset.

  • Enhanced bearings in the head and base of the pump
  • Optimized hydraulic design for greater efficiency
  • Compatible with equipment from any ESP provider
BLACKGOLD operating range graph.

Have a Questions?

*Denotes Required Fields

Confirm you are not a robot by sliding the lock icon to the other side of the bar.