Benefits ? ? Eliminated? lost? circulation ? ? Drilled? ahead? to? planned? total? depth ? ? Minimized? seepage? losses Background and challenges ? ? Haynesville? Shale ? ? Drill? a? 6¾-in.? hole? with? 17.2? ppg? ? oil-based? mud? in? challenging? shale ? ? Losses? from? 11,722? ft? after? drilling? ? out? of? 7 5 /8-in.? casing? at? 11,098? ft ? ? Total? losses? over? 10,000? bbl? ? down? to? 12,108? ft ? ? Traditional? lost-circulation? pills

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