Case History CHALLENGE •Drill & complete open-hole sidetrack for gas storage injector well •Minimize fluid loss during completion screen assembly installation •Easily remove filter cake SOLUTIONS •CleanDrill reservoir drill-in fluid •Specifically formulated for formation compatibility •Appropriately sized particle distribution for fluid loss control RESULT •Successfully drilled open-hole interval •Controlled fluid loss to formaiton whle drilling •Able to run compleiton screen assembly to TD without incident Monovalent Brine-Based Reservoir Drill-In Fluid Successfully Drills Open-Hole Interval for 5.5 Hours at a Rate of 30 ft/min CleanDrill TM Reservoir Drill-In Fluid is a Specialized, Minimally Damaging Monovalent Brine-Based System Allowing for Easy Cleanup of Filter

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