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Performance drilling has become a mainstay, with regards to drilling operations support.  Although the benefits of this initiative have clearly been established, performance challenges still persist.  As and example, directional drilling even with the introduction of advanced and sophisticated drive systems, is yet to fully benefit from performance drilling.  Several other applications, notably large diameter drilling, dual diameter drilling, hard and/or abrasive formations,  and deep drilling, still present challenges.

Discussions will identify the reasons why performances in these applications still leave much to be desired.  Insights into assumptions fueling current ineffective performance drilling solutions and strategies, combined with the urgency for different approaches, will be presented.  Additional applications, needing industry attention and developmental support will also be presented.