Analysis used to assess, improve drilling performance

Perfect-well analysis can quantitatively, unambiguously, and simply assess drilling performance and offer a method to set performance targets and identify where savings can most likely be found. This is the first of two articles that introduce a concept called "perfect-well analysis."Just what should a well cost?One difficult part of assessing drilling performance is comparing wells in different situations: different depths, lithology, complexity, hole programs, business units, etc. When a driller says he "saved" 10%, it is difficult to know if these were legitimate savings or if the original AFE was just too conservative.The difficulty in nailing down what wells should really cost someti...

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