Patents Assigned to Isealate AS
  • Sand screens and related products and methods
    Patent number: 12497867
    Abstract: An expandable sand screen device is described comprising in various examples a rolled-up piece of screen material which is configured to be at least partially unrollable to expand diametrically when located in a wellbore. A piece of screen material may be rolled up to form an expandable roll. In some examples, the expandable sand screen device is run into the wellbore on a running tool and allowed to partially unroll once released from the running tool.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: December 16, 2025
    Assignee: ISEALATE AS
    Inventor: Bengt Gunnarsson
  • Running tool for a downhole aparatus for patching a wall of conduit and a method of patching a conduit
    Patent number: 12291938
    Abstract: A running tool for running an apparatus for patching a wall of a downhole casing and activating the apparatus in a location in the conduit includes a rolled up or curled up piece of material for patching the wall. The piece of material has a surface comprising an adhesive compound for fastening the piece of material securely to the wall of the casing. The running tool has a heater for providing heat for the apparatus for heating the compound and a forcing device for applying a force to the piece of material for forcing or holding the piece of material against the wall of the casing.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 6, 2025
    Assignee: ISEALATE AS
    Inventors: Einar Waage-Rasmussen, Bengt Gunnarsson
  • Lining an internal wall of a conduit
    Patent number: 10808876
    Abstract: A method and apparatus for lining at least one part of a wall of a conduit. In particular embodiments, a piece of material in the form of a sheet may be provided with adhesive thereupon, the sheet being curled or rolled up to allow insertion into the conduit. The curled or rolled up sheet may then be positioned inside the conduit, and once positioned inside the conduit, may at least partially uncurl or unroll to apply the sheet to the wall via the adhesive to obtain a laminate.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: October 20, 2020
    Assignee: Isealate AS
    Inventors: Bengt Gunnarsson, Einar Waage-Rasmussen, Dan Forsström, Johan Haasum
  • Improvements Relating to Lining an Internal Wall of a Conduit
    Publication number: 20190049054
    Abstract: A method and apparatus for lining at least one part of a wall of a conduit. In particular embodiments, a piece of material in the form of a sheet may be provided with adhesive thereupon, the sheet being curled or rolled up to allow insertion into the conduit. The curled or rolled up sheet may then be positioned inside the conduit, and once positioned inside the conduit, may at least partially uncurl or unroll to apply the sheet to the wall via the adhesive to obtain a laminate.
    Type: Application
    Filed: February 23, 2017
    Publication date: February 14, 2019
    Applicant: Isealate AS
    Inventors: Bengt Gunnarsson, Einar Waage-Rasmussen, Dan Forsström, Johan Haasum