Biggest cycle-time culprit on a rig

In your experience, which routine task shows the highest variance — tripping, casing make-up, BOP tests, or crane logistics? I ran a small analysis on 14 Gulf wells and pipe handling sequences had a 28% higher standard deviation than BOP tests; curious if that matches anyone’s data or if I just sampled an odd season.

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Matches your ‘28% higher SD’; ours peaked on crew-change days. Pre-staged, barcode-tagged stands cut variance about 15%.

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