This paper will be presented by E.S. Kolstad at the 2007 SPE/IADC Drilling Conference held in Amsterdam, The Netherlands, 20-22 February 2007. Read and download the tech paper from here: https://www.helmerichpayne.com/resources/technical-publications/application-of-purpose-built-rig-technology-results-in-step-change-in-drilling-time-cost-and-opportunities or you can contact us here: https://www.helmerichpayne.com/contact.