Rhino wired multicycle hydraulic underreamer | SLB

Wired multicycle hydraulic underreamer

Rhino integrated borehole enlargement system

Rhino wired multicycle hydraulic underreamer.

Complete control, reliable communication

The Rhino™ wired multicycle hydraulic underreamer is part of the rugged, precision-engineered Rhino integrated borehole enlargement system—a family of hydraulically actuated reamers that save rig time and bring production online faster by underreaming and drilling in a single run.

Building on the capabilities of the Rhino multicycle hydraulic underreamer, Rhino wired multicycle hydraulic underreamer delivers on-demand hydraulic activation with full wired communication for rathole elimination applications. It provides complete control of reamer activation, eliminating pumpdown device activation.

Additionally, the reamer’s flow actuation changes the reaming mode in minutes, reducing reamer activation time and enabling an unlimited number of activation cycles during a run.

  • Hole enlargement while drilling
  • Mud systems with high solids content
  • Lost circulation material (LCM) as background treatments
  • Deep water
  • Extended-reach wells
  • Highly abrasive environments
  • Swelling formations


  • Undergauge body design for optimal flow-by area
  • Hydraulically activated multicycle cam mechanism in an oil-sealed chamber
  • Locking mechanism for shoe-track drillout applications
  • Wired-through system for seamless communication between RSS and MLWD tools
  • Single-piece body for higher tensile- and torque-load capacity
  • Compatibility with rotary or rotary steerable BHA components
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From the AxeBlock™ torque-reducing ridged diamond element cutter block to stabilizer blocks, our industry-leading family of cutter blocks combine the best cutters with a dynamically stable design for the best performance in a variety of formations—all in a variety of BHA configurations.

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