Industry Article: Optimizing ROP through Automation

Optimizing ROP through Automation
Publication: Drilling Contractor
Publication Date: 09/01/2011

Increasing the rate of penetration (ROP) without detrimentally affecting hole quality or well placement can help to reduce drilling costs, especially on rigs with a high spread rate. This article discusses a ROP optimization algorithm for polycrystalline diamond compact (PDC) bits. The algorithm does not support roller cone bits or under-reamers, but the method could be extended to include them. While on bottom, the driller can control only three parameters: weight-on-bit, rotary speed, and mud flow rate. With no mud motor in the drillstring, flow rate has a limited effect on ROP, so the optimization is two dimensional in WOB and revolutions/min (RPM).

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