Patents by Inventor Scott Fraser Ashby

Scott Fraser Ashby 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).

  • Zonal isolation of a subterranean wellbore
    Patent number: 10704354
    Abstract: A plug assembly used in a wellbore fracturing process includes an annular housing that is set in the wellbore, and a ball that lands and seats in the housing. The housing and ball form a pressure barrier in the wellbore that isolates one portion of the wellbore from an adjacent portion. Pressurizing the portion of the wellbore isolated by the plug assembly generates fractures in a formation around that portion of the wellbore. The ball is not reactive with wellbore fluid or affected by wellbore conditions. Fluid communication across the plug assembly is reestablished by fracturing or milling the ball within the housing. Wellbore operations are conducted by inserting downhole tools through a bore axially formed in the housing.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 7, 2020
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Saad Hamid, Scott Fraser Ashby
  • Zonal Isolation Of A Subterranean Wellbore
    Publication number: 20190301262
    Abstract: A plug assembly used in a wellbore fracturing process includes an annular housing that is set in the wellbore, and a ball that lands and seats in the housing. The housing and ball form a pressure barrier in the wellbore that isolates one portion of the wellbore from an adjacent portion. Pressurizing the portion of the wellbore isolated by the plug assembly generates fractures in a formation around that portion of the wellbore. The ball is not reactive with wellbore fluid or affected by wellbore conditions. Fluid communication across the plug assembly is reestablished by fracturing or milling the ball within the housing. Wellbore operations are conducted by inserting downhole tools through a bore axially formed in the housing.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 3, 2019
    Applicant: Saudi Arabian Oil Company
    Inventors: Saad Hamid, Scott Fraser Ashby