Schlumberger

Product Sheet: nZone Ball Drop System

Date: 12/1/2010

Download: nZone Ball Drop Valve (0.29 MB PDF)

Multistage stimulation system

The nZone ball drop valve is the main valve of the nZone completion system designed to facilitate efficient fracturing in all reservoir types. It allows an unlimited number of stages to be fracture-stimulated in a single continuous operation without incremental reductions to the ID or need for wireline intervention. However, the nZone valve requires a control line to be run from one valve to the next, and thus necessitates a larger size open hole. The nZone ball drop valve can be used as an alternative to the nZone valve; however, it has graduated ball seats in the ID.

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