1
Scott Boone, Brian Ellis, Beat Kuttel, John Thomas Scarborough, Chris Papouras: Directional drilling control. Canrig Drilling Technology, Haynes and Boone, November 2, 2010: US07823655 (36 worldwide citation)

Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to opposing ends of a drill string, by monitoring an actual toolface orientation of a tool driven by the h ...


2
Scott Boone, Brian Ellis, Beat Kuttel, Chris Papouras, John Thomas Scarborough: Automated MSE-based drilling apparatus and methods. Canrig Drilling Technology, Haynes and Boone, May 10, 2011: US07938197 (35 worldwide citation)

Methods and apparatus for MSE-based drilling operation and/or optimization, comprising detecting MSE parameters, utilizing the MSE parameters to determine MSE, and automatically adjusting drilling operational parameters as a function of the determined MSE.


3
Scott Boone, Brian Ellis, Beat Küttel, John Thomas Scarborough, Chris Papouras: Directional drilling control apparatus and methods. Canrig Drilling Technology, Haynes and Boone, January 29, 2013: US08360171 (7 worldwide citation)

Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to opposing ends of a drill string, by monitoring an actual toolface orientation of a tool driven by the h ...


4
Scott Boone, Brian Ellis, Beat Kuttel, John Thomas Scarborough, Chris Papouras: Directional drilling control apparatus and methods. Canrig Drilling Technology, Haynes and Boone, December 10, 2013: US08602126 (1 worldwide citation)

Apparatus and methods to steer a hydraulic motor when elongating a wellbore having a non-vertical component that includes a quill adapted to transfer torque, rotation, or position between a drive assembly and a drillstring, a bottom hole assembly (BHA) including a toolface orientation detector and a ...


5
Scott Boone, Brian Ellis, Beat Kuttel, Chris Papouras, John Thomas Scarborough: Automated mse-based drilling apparatus and methods. Nabors Global Holdings, Haynes And Boone, July 3, 2008: US20080156531-A1

Methods and apparatus for MSE-based drilling operation and/or optimization, comprising detecting MSE parameters, utilizing the MSE parameters to determine MSE, and automatically adjusting drilling operational parameters as a function of the determined MSE.


6
Scott Boone, Brian Ellis, Beat Küttel, John Thomas Scarborough, Chris Papouras: Directional drilling control apparatus and methods. Canrig Drilling Technology, Haynes And Boone, February 3, 2011: US20110024187-A1

Methods and apparatus for using a quill to steer a hydraulic motor when elongating a wellbore in a direction having a horizontal component, wherein the quill and the hydraulic motor are coupled to opposing ends of a drill string, by monitoring an actual toolface orientation of a tool driven by the h ...