Schlumberger

Tech Report: WELL COMMANDER Ball-Activated Valve Provides Above-BHA Circulation for Gas Removal During Coring

Operator deploys valve to boost annular fluid velocities and remove gas migrating in the borehole, Sakhalin Island

WELL COMMANDER Ball-Activated Valve Provides Above-BHA Circulation for Gas Removal During Coring

Publication Date: 11/28/2016

An operator needed circulation capability above a coring BHA to remove gas migrating into the wellbore during coring operations. Ensuring that the 1.25-in balls could reach the core barrels to isolate them was the operator’s greatest concern.




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