Patents by Inventor Helge Stridsklev

Helge Stridsklev 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 a method of fragmenting hard particles
    Patent number: 7798218
    Abstract: A method of treating particulate hard materials driven to the surface of a well in a returning well flow in connection with a producing well or well stimulation operations in the petroleum production industry, the method including fragmentation of the hard particles by means of a crushing device, whereupon the fragmented hard particles are turned into a slurry which is then re-injected into an injection well.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: September 21, 2010
    Assignee: Environmental Technology AS
    Inventors: Johannes B. Garstad, Helge Stridsklev, Sven Egil Tjørhom
  • Apparatus and a Method of Fragmenting Hard Particles
    Publication number: 20080230222
    Abstract: A method of treating particulate hard materials driven to the surface of a well in a returning well flow in connection with a producing well or well stimulation operations in the petroleum production industry, the method including fragmentation of the hard particles by means of a crushing device, whereupon the fragmented hard particles are turned into a slurry which is then re-injected into an injection well.
    Type: Application
    Filed: August 24, 2006
    Publication date: September 25, 2008
    Applicant: ENVIRONMENTAL TECHNOLOGY AS
    Inventors: Johannes B. Garstad, Helge Stridsklev, Sven Egil Tjorhom