Fast, reliable underreaming

The Rhino™ hydraulic underreamer is part of the Rhino integrated borehole enlargement system—a family of hydraulically actuated reamers that save rig time and bring production online faster by underreaming while drilling in a single run. The Rhino hydraulic underreamer reduces trip-out time, especially in swelling or unstable formations.

• Hole enlargement while drilling
• Onshore or offshore wells
• Swelling or unstable formations

• Moving parts placed farther from critical flow ports
• Three drilling fluid ports to facilitate cuttings removal
• Compatibility with rotary or rotary steerable BHA components
• Locking mechanism for shoe-track drillout applications
• Undergauge diameter to optimize annular flow
• Optional stabilizer sleeve for improved stability
• Maximum lost circulation material: 50 lbm/bbl [142.65 kg/m³]

Designed for dependability

The rugged, precision-engineered Rhino hydraulic underreamer features moving parts positioned farther from critical flow ports on the undergauge body for optimal flow. Hole enlargement results from cutter block actuation by drilling fluid flow. The fluid then exits the reamer through three fluid ports to improve cuttings removal. An optional integral stabilized body enables use during high ROP in high lateral-vibration applications.