Patents by Inventor Christopher R. Matthews-Ewald

Christopher R. Matthews-Ewald 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).

  • Patent number: 9879505
    Abstract: A one trip method of cleaning a portion of the borehole and then setting a tool such as a packer or a bridge plug locates the cleanup tools above the plug with a ported sub to allow circulation of loosened debris. The debris is directed uphole from above the plug and does not have to pass around the sealing element of the plug or through bypass ports in the plug body. The plug is then positioned in the cleaned portion and set. The cleaning tools are released from the set plug and brought to the surface. These tools could be used to clean the portion of the borehole where the tool is set or clean the entire section above the tool on the trip out of the borehole. Cleaning tools can be filter, scrapers both fixed and movable, magnets, brushes and associated tools that centralize the assembly for more effective operation.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: January 30, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: James L. Holloway, Samuel K. Kruger, Christopher R. Matthews-Ewald
  • Publication number: 20160305219
    Abstract: A one trip method of cleaning a portion of the borehole and then setting a tool such as a packer or a bridge plug locates the cleanup tools above the plug with a ported sub to allow circulation of loosened debris. The debris is directed uphole from above the plug and does not have to pass around the sealing element of the plug or through bypass ports in the plug body. The plug is then positioned in the cleaned portion and set. The cleaning tools are released from the set plug and brought to the surface. These tools could be used to clean the portion of the borehole where the tool is set or clean the entire section above the tool on the trip out of the borehole. Cleaning tools can be filter, scrapers both fixed and movable, magnets, brushes and associated tools that centralize the assembly for more effective operation.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 20, 2016
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: James L. Holloway, Samuel K. Kruger, Christopher R. Matthews-Ewald
  • Patent number: 9458693
    Abstract: A retrievable inflatable plug system features distinct seal and anchor elements where the seal element features overlapping ribs preferably metallic and preferably overlapping. The ribs extend the substantial length of the packer and are disposed under the annularly shaped sealing element. The anchor features exposed continuous ribs extending from opposed ends with one or more stiffener rings disposed on the exposed ribs. The elements can be inflated separately or together and include valving systems to allow deflation for selective removal of the plug to put a well back into service.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 4, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Christopher R. Matthews-Ewald, Halit Dilber, John M. Sprott, Babajide Jagunna, Kent S. Meyer