Patents by Inventor Steve E. Buchanan

Steve E. Buchanan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Automated sidewall coring
    Patent number: 9217328
    Abstract: Methods and apparatus for positioning a downhole tool in a wellbore extending into a subterranean formation, commencing coring operations by rotating a coring bit of the downhole tool and extending the rotating coring bit into a sidewall of the wellbore, sensing a parameter associated with the coring operations, and adjusting the coring operations based on the sensed parameter.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: December 22, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Bo Yang, Steve E. Buchanan, Akio Kita
  • Automated Sidewall Coring
    Publication number: 20120318579
    Abstract: Methods and apparatus for positioning a downhole tool in a wellbore extending into a subterranean formation, commencing coring operations by rotating a coring bit of the downhole tool and extending the rotating coring bit into a sidewall of the wellbore, sensing a parameter associated with the coring operations, and adjusting the coring operations based on the sensed parameter.
    Type: Application
    Filed: October 8, 2010
    Publication date: December 20, 2012
    Inventors: Bo Yang, Steve E. Buchanan, Akio Kita
  • FORMATION CORING APPARATUS AND METHODS
    Publication number: 20100282516
    Abstract: Methods comprising: lowering a downhole tool into a wellbore extending into a subterranean formation, wherein the downhole tool comprises a coring tool and a measurement tool; performing a measurement regarding the formation using the measurement tool; determining a section of interest within the formation relative to an axis of the coring tool based on the measurement; orienting a coring bit of the coring tool relative to the section of interest; and extending the oriented coring bit into the formation.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 11, 2010
    Inventors: Steve E. Buchanan, Julian J. Pop, Carsten Sonne, Gokhan Erol