Patents by Inventor Ewan Colin Smith

Ewan Colin Smith 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
    Patent number: 10613691
    Abstract: A downhole apparatus including a tubular body, first and second ports in a wall of the body, and a fluid pressure-responsive valve arrangement having a locked first configuration associated with a first pressure in which the first port is open and the second port is closed, an unlocked second configuration associated with a second pressure higher than the first pressure in which the first port is open and the second port is closed, and a third configuration associated with a third pressure lower than the second pressure in which the second port is open and the first port is closed.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 7, 2020
    Assignee: HALLIBURTON MANUFACTURING AND SERVICES LIMITED
    Inventors: Stephen Edmund Bruce, Stephen Kent, Dominic Patrick Joseph McCann, David Allan Noblett, David Grant, Ewan Colin Smith
  • Downhole Apparatus
    Publication number: 20180081468
    Abstract: A downhole apparatus including a tubular body, first and second ports in a wall of the body, and a fluid pressure-responsive valve arrangement having a locked first configuration associated with a first pressure in which the first port is open and the second port is closed, an unlocked second configuration associated with a second pressure higher than the first pressure in which the first port is open and the second port is closed, and a third configuration associated with a third pressure lower than the second pressure in which the second port is open and the first port is closed.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 22, 2018
    Inventors: Stephen Edmund Bruce, Stephen Kent, Dominic Patrick Joseph McCann, David Allan Noblett, David Grant, Ewan Colin Smith
  • Downhole apparatus
    Patent number: 9851852
    Abstract: A downhole apparatus including a tubular body, first and second ports in a wall of the body, and a fluid pressure-responsive valve arrangement having a locked first configuration associated with a first pressure in which the first port is open and the second port is closed, an unlocked second configuration associated with a second pressure higher than the first pressure in which the first port is open and the second port is closed, and a third configuration associated with a third pressure lower than the second pressure in which the second port is open and the first port is closed.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 26, 2017
    Assignee: DARCY TECHNOLOGIES LIMITED
    Inventors: Stephen Edmund Bruce, Stephen Kent, Dominic Patrick Joseph McCann, David Allan Noblett, David Grant, Ewan Colin Smith
  • 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
  • DOWNHOLE APPARATUS
    Publication number: 20150027726
    Abstract: A downhole apparatus including a tubular body, first and second ports in a wall of the body, and a fluid pressure-responsive valve arrangement having a locked first configuration associated with a first pressure in which the first port is open and the second port is closed, an unlocked second configuration associated with a second pressure higher than the first pressure in which the first port is open and the second port is closed, and a third configuration associated with a third pressure lower than the second pressure in which the second port is open and the first port is closed.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 29, 2015
    Applicant: Darcy Technologies Limited
    Inventors: Stephen Edmund Bruce, Stephen Kent, Dominic Patrick Joseph McCann, David Allan Noblett, David Grant, Ewan Colin Smith