Patents by Inventor Ståle GRANBERG

Ståle GRANBERG 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).

  • Single trip—through drill pipe proppant fracturing method for multiple cemented-in frac sleeves
    Patent number: 10151189
    Abstract: The present invention relates to a method, a system (1) and tool(s) (300, 2, 3) for single trip through drill pipe proppant fracturing of subterranean formations (130) surrounding oil and/or gas production wells (100).
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: December 11, 2018
    Assignee: DRECO ENERGY SERVICES ULC
    Inventors: Paul David Busengdal, Tore Sørheim, Tom Rune Koløy, Ståle Granberg, Pål Zon Rafdal, Nicolai Isaak Stubbrud, Jarle Trones
  • SINGLE TRIP - THROUGH DRILL PIPE PROPPANT FRACTURING METHOD FOR MULTIPLE CEMENTED-IN FRAC SLEEVES
    Publication number: 20160160608
    Abstract: The present invention relates to a method, a system (1) and tool(s) (300, 2, 3) for single trip through drill pipe proppant fracturing of subterranean formations (130) surrounding oil and/or gas production wells (100).
    Type: Application
    Filed: December 7, 2015
    Publication date: June 9, 2016
    Inventors: Paul David BUSENGDAL, Tore SØRHEIM, Tom Rune KOLØY, Ståle GRANBERG, PåL Zon RAFDAL, Nicolai Isaak STUBBRUD, Jarle TRONES