Patents by Inventor Andrew David James Cameron

Andrew David James Cameron 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).

  • Downhole apparatus for disrupting filter cake
    Patent number: 10718183
    Abstract: A tubular has a retracted configuration and an extended configuration. The tubular is initially in the retracted configuration and run into a bore at least partially lined with filter cake. The tubular is extended such that a filter cake-disrupting member mounted on the tubular defines high points or otherwise has an outer surface of varying radial extent for disrupting or disturbing the filter cake.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 21, 2020
    Assignee: HALLIBURTON MANUFACTURING AND SERVICES LIMITED
    Inventors: Stephen Edmund Bruce, David Grant, Ewan Colin Smith, Andrew David James Cameron
  • DOWNHOLE APPARATUS
    Publication number: 20160326840
    Abstract: A tubular has a retracted configuration and an extended configuration. The tubular is initially in the retracted configuration and run into a bore at least partially lined with filter cake. The tubular is extended such that a filter cake-disrupting member mounted on the tubular defines high points or otherwise has an outer surface of varying radial extent for disrupting or disturbing the filter cake.
    Type: Application
    Filed: November 5, 2014
    Publication date: November 10, 2016
    Applicant: Darcy Technologies Limited
    Inventors: Stephen Edmund Bruce, David Grant, Ewan Colin Smith, Andrew David James Cameron