Patents by Inventor Helge Andreas Qvam

Helge Andreas Qvam 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).

  • Method for thermally protecting subsea installations, and apparatus for implementing such thermal protection
    Patent number: 6889770
    Abstract: Method for protecting subsea installations against cooling which leads to hydrate formation, in particular during production halts. This is achieved by thermally isolating portions of the installation (1) against the surrounding water (2), and particularly by completely encompassing the subsea installation (1) by means of a cap (3) which seals against the surrounding water (2). The cap (3) comprises several elements of which each separately can be exposed to cooling and internal hydrate formation. The invention also comprises a thermally isolating apparatus, adapted for protecting subsea installations (1) against cooling, which involves a risk for hydrate formation. An apparatus (3, 9) for implementing the method comprises a relatively tight-fitting cap (3) which encompasses at least two of the elements to be protected from cooling.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: May 10, 2005
    Assignee: ABB Offshore Systems AS
    Inventors: Helge Andreas Qvam, Patrice Augilera, Steinar Hestetun
  • Method for thermally protecting subsea installations, and apparatus for implementing such thermal protection
    Publication number: 20030010499
    Abstract: Method for protecting subsea installations against cooling which leads to hydrate formation, in particular during production halts. This is achieved by thermally isolating portions of the installation (1) against the surrounding water (2), and particularly by completely encompassing the subsea installation (1) by means of a cap (3) which seals against the surrounding water (2). The cap (3) comprises several elements of which each separately can be exposed to cooling and internal hydrate formation. The invention also comprises a thermally isolating apparatus, adapted for protecting subsea installations (1) against cooling, which involves a risk for hydrate formation. An apparatus (3, 9) for implementing the method comprises a relatively tight-fitting cap (3) which encompasses at least two of the elements to be protected from cooling.
    Type: Application
    Filed: August 9, 2002
    Publication date: January 16, 2003
    Inventors: Helge Andreas Qvam, Patrice Aguilera, Steinar Hestetun