Driller’s Way-point Depth Determination
Calibrated and corrected drill pipe measured along-hole depth with uncertainty
Driller’s Way-point Depth (DwpD) uses drill pipe measured depth to arrive at a calibrated and corrected along-hole depth with an associated uncertainty. This is True Along-hole (TAH) depth, an ISO measurement as opposed to the estimate that existing practices provide. DwpD allows along-hole depth measurement to be compared and verified and does away with simply tying-in to an arbitrary maxim. This improves along-hole depth measurement accuracy, improving well placement and the reliability of mapping of downhole structures and reservoir volumes.
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