Schlumberger

Product Sheet: Copperhead Mill

Date: 11/20/2014

Single-trip plug-removal device

The Copperhead mill can remove all Copperhead plugs in a single trip downhole. The tool is designed to simulate the action of a machine shop lathe. A serrated blade cuts grooves in the aluminum and a flat blade follows it, flattening the peaks. This process occurs three times per rotation. The mill cuts into the metal instead of crushing it, producing small, consistently sized, lightweight cuttings that can be circulated out of the well, keeping the mill face clean. The mill’s bypass and flow-through features also facilitate cuttings removal.

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