Schlumberger

Product Sheet: Rhino RHE Dual-Reamer Rathole Elimination System

Date: 7/31/2013

Borehole enlargement while drilling

Hole enlargement while drilling, which is common in deepwater wells, typically results in a rathole of more than 100 ft at TD and adds one or more days to the well construction timeline. The Rhino RH dual-reamer rathole elimination system is an integrated dual-reamer drilling system that enlarges the borehole while drilling. A passive near-bit reamer is activated at TD, and after reaching TD, the rathole is enlarged while drilling to avoid adding extra time to well construction.

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