Schlumberger

Tech Report: DRILPLEX AR PLUS System Solves Lost Circulation Problems While Drilling Two Upper Intervals, Russia

Highly effective drilling fluid eliminates mud losses and reduces average drilling time by 25%

DRILPLEX AR PLUS System Solves Lost Circulation Problems While Drilling Two Upper Intervals, Russia

Publication Date: 02/03/2017

An operator experienced chronic partial to total lost circulation while drilling the conductor and surface casing intervals for multiple eastern Siberian wells. M-I SWACO suggested changing the drilling fluid system from the spud mud used previously to the DRILPLEX AR PLUS anionic-tolerant water-base drilling fluid system to address the challenging drilling conditions.

In the pilot project well in which 10 previously drilled wells exhibited lost circulation, the well drilled using the DRILPLEX AR PLUS system showed no lost circulation problems while drilling the upper intervals. Using the system resulted in a 25% reduction in the average drilling time.




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