Patents by Inventor Paul Crerar

Paul Crerar 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).

  • Directional drilling system
    Patent number: 9057223
    Abstract: A technique facilitates drilling of wellbores or other types of bore holes in a variety of applications. A steerable system or other well tool is designed with a plurality of actuators which are positioned to provide controlled steering during a drilling operation. Each actuator includes at least one loose element or ball slidably mounted in a corresponding sleeve. Pressurized fluid is used to provide controlled movement of the elements along the corresponding sleeves of the actuators. The controlled movement of the elements assists in the provision of steering or other control over the well tool during the drilling operation.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 16, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Cedric Perrin, Geoffrey C. Downton, Christopher C. Bogath, Bertrand Lacour, Paul Crerar
  • Directional Drilling System
    Publication number: 20130341098
    Abstract: A technique facilitates drilling of wellbores or other types of bore holes in a variety of applications. A steerable system or other well tool is designed with a plurality of actuators which are positioned to provide controlled steering during a drilling operation. Each actuator includes at least one loose element or ball slidably mounted in a corresponding sleeve. Pressurized fluid is used to provide controlled movement of the elements along the corresponding sleeves of the actuators. The controlled movement of the elements assists in the provision of steering or other control over the well tool during the drilling operation.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Inventors: Cedric Perrin, Geoffrey C. Downton, Christopher C. Bogath, Bertrand Lacour, Paul Crerar