Hart’s E&P: Self-adjusting PDC Bits Could Enable Autonomous Drilling Systems

A new self-adjusting polycrystalline diamond compact (PDC) bit that can adjust its depth-of-cut (DOC) control characteristics to the constantly changing drilling environment marks a significant step toward autonomous drilling systems and related cost- and risk-reduction benefits. The bit, which has been validated in laboratory testing and full-scale field research wells, overcomes several limitations posed by the fixed nature of traditional DOC control technology to mitigate vibrations while delivering improved ROP.  PDC bits have undergone numerous technological improvements over the past few decades—among them, evolutions in cutter technology, development of whirl-resistant PDC bits and DOC control technology—to displace roller-cone bits in market dominance. Click the link below to read the full article.



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