Hole Opener
Wellbore Enlargement Tool
Introduction
The Hole Opener enlarges the wellbore behind a pilot hole, with three pairs of staged cutters delivering six-point contact for a stable, full-gauge hole.
Available in fixed diameters from 23" to 42" and manufactured from high-quality AISI 4145 H-MOD steel meeting NS-1, DS1 Cat 3-5, and API, it's fitted as standard with mill tooth roller cones for soft to medium formations, enhanced to mitigate boulder interference.
Stability comes by design: staged cutter pairs contact the hole at six points, with a full gauge pilot blade increasing stability further. Custom designs and TCI cutters are available to client request.
Certified Steel Throughout
Manufactured from AISI 4145 H-MOD meeting NS-1, DS1 Cat 3-5, and API.
Stabilized by Design
Six-point hole contact from staged cutters, with a full gauge pilot blade adding further stability.
Hydraulics Set to Your Program
Six upward-facing nozzles oriented toward the cutters, set to customer-advised TFA.
How It Works
Staged Cutting, Stable Running
Opening a large-diameter hole puts enormous demands on a single tool, the cutting structure must enlarge the bore evenly while staying centered, in formations that can throw boulders at it.
The full gauge pilot blade rides the pilot hole to keep the tool centered, while three pairs of staged cutters share the enlargement. Each pair is taking its stage of the cut rather than one structure taking it all. Six-point hole contact stabilizes the tool through the cut, upward-facing nozzles direct flow toward the cutters, and sealed roller bearings carry the load in every cone.
The result is a stable, full-gauge enlarged hole, cut evenly from pilot diameter to as much as 42".
Product Resources
Related solutions
Further enhance your wellbore quality
Drive drilling efficiency with advanced wellbore solutions
View all productsClearPath™ Sleeve
Wellbore Conditioning Sleeve
A non-rotating stabilizer sleeve that delivers 360° wellbore contact, reducing torque, drag, and vibration while supporting higher ROP.
TurboCaser®
High-Speed Reaming System
A pass-through, turbine-powered reamer shoe system that lands casings and intermediate liners at target depth, no string rotation required.
Dome Hybrid Reamer
Stabilize & Ream on Demand
A dual-function tool that stabilizes the BHA during normal drilling and reams on demand, reaming when you need it.
MechLok®
Lockable Drill Pipe Swivel
Mechanically lockable swivel that rotates pipe above the liner, reducing drag and buckling to push completions to depth.
ClearPath™ Stabilizer
Next-Generation Stabilization
Dome-shaped, low-friction blades centralize the BHA while reducing torque, drag, and torsional vibration, a direct spiral-blade replacement.
Drill-N-Ream®
Ultimate Wellbore Conditioning Tool
Reduce torque and drag, extend your lateral reach, and eliminate the need for dedicated reamer runs.
TurboRunner®
Completion Running System
Turbine-powered reaming that lands completions, liners, and casings at target depth, gentle on delicate and intelligent strings.