Schlumberger

Rhino XS2 Full-Cycle Expandable Reamer

Full-cycle actuation

Beginning full-cycle actuation involves pumping an activation ball downhole, which shears the sleeve and exposes the fluid ports. The reamer’s unique design positions moving parts farther from critical flow ports.

Drilling fluid flows through the fluid ports, opening the cutter blocks. The hole is then drilled and enlarged. The tool has three ports, facilitating cuttings removal.

Once drilling and underreaming is performed, the cycle is completed by pumping another ball down. The deactivation pins shear, releasing the sleeve and ball to the catcher, and closing fluid ports to the cutter blocks. 

Circulating fluid can then be pumped at maximum flow rates for optimal hole cleaning at TD without activating the cutter blocks. Multiple bottom-up cycles can be pumped as required. When the tool is inside the casing, additional cycles can be pumped without the risk of damaging the casing. The deactivated tool trips out without generating new cuttings.

Rhino XS2Rhino XS2

In the image above, slide the bar left and right to see a comparison. Via ball drop, the reamer turns on for borehole enlargement and turns off for full circulation at TD for effective hole cleaning.

Explore How the Rhino XS2 Reamer Operates Downhole

Rhino XS2 Full-Cycle Expandable Reamer
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Underreaming Efficiency Proven by 5,000+ Runs

Rhino Family Brochure
Field-proven Rhino system reamers deliver quality, concentric boreholes in challenging applications to save time and bring production online faster. Download Rhino brochure (3.8 MB PDF)