Patents by Inventor Terje Kristiansen

Terje Kristiansen 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).

  • Apparatus and method for supplying fluid into different zones in a formation
    Patent number: 5464059
    Abstract: There is discussed an apparatus for distributing fluid to at least two separate zones having higher (22) and lower (24) injectivity in a ground formation (10) through a pipe element in a well hole (12), where the pipe element by means of upper and lower sealing bodies (28,30) defines a space (30) which is adjacent to the zone (22) having a higher injectivity and which has a connection (16) to the zone, and where a fluid connection is established between the interior of the pipe element and the space via a replaceable flow pressure-regulating nozzle which establishes a given flow pressure for the current of fluid into the zone (22) having the higher injectivity.
    Type: Grant
    Filed: November 25, 1994
    Date of Patent: November 7, 1995
    Assignee: Den Norske Stats Oljeselskap a.s.
    Inventor: Terje Kristiansen