The Rhino XS hydraulically expandable reamer provides reliable hydraulic actuation for single-trip borehole enlargement with an activation ball that is dropped from the surface. Hydraulic actuation is provided by the Z-Drive reamer cutter block deployment system. When activated by the ball drop, the Z-Drive system pushes the cutter blocks upwards and radially outwards to the fully open position, facilitating rapid cutout and ensuring a full-gauge, concentric borehole, When pumping stops, the cutter blocks retract. Dependable retraction of the cutter blocks helps avoid stuck BHAs. Applications: - Shoe-track drilling when cement must be cleared from casing - Post-shoe-track drilling in formations that require enhanced stabilization - Hole enlargement while drilling Advantages: - Hydraulic activation - Cutter block design that eliminates PDC cutter contact with casing ID - Optional cement cleanout blocks for removals of the cement ID when sheath that forms in the casing ID when drilling the shoe track
|Single Ball Drop & Double Ball Drop System
|6.5" to 7"