Patents by Inventor Bruce Ewen

Bruce Ewen 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).

  • Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion
    Publication number: 20070027253
    Abstract: Single phase microemulsions improve the removal of filter cakes formed during drilling with invert emulsions. The single phase microemulsion removes oil and solids from the deposited filter cake. Optionally, an acid capable of solubilizing the filter cake bridging particles may also be used with the microemulsion. In one non-limiting embodiment the acid may be a polyamino carboxylic acid. Skin damage removal from internal and external filter cake deposition can be reduced.
    Type: Application
    Filed: October 2, 2006
    Publication date: February 1, 2007
    Inventors: Thomas Jones, David Clark, Lirio Quintero, Bruce Ewen
  • Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion
    Publication number: 20060073986
    Abstract: Single phase microemulsions improve the removal of filter cakes formed during drilling with invert emulsions. The single phase microemulsion removes oil and solids from the deposited filter cake. Optionally, an acid capable of solubilizing the filter cake bridging particles may also be used with the microemulsion. In one non-limiting embodiment the acid may be a polyamino carboxylic acid. Skin damage removal from internal and external filter cake deposition can be reduced.
    Type: Application
    Filed: September 2, 2005
    Publication date: April 6, 2006
    Applicant: Baker Hughes Incorporated
    Inventors: Thomas Jones, David Clark, Lirio Quintero, Bruce Ewen