Patents by Inventor William Steffensen

William Steffensen 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).

  • Arrangement, device and method for resolving hydrate plugs
    Patent number: 9157290
    Abstract: An arrangement for resolving a hydrate plug (1) in a pipeline (2), such as tubing, drill pipe, casing etc., is described, said arrangement comprising a heating device (4) run on wire line. The heating device (4) is elongated and spear shaped and is mounted on a stroking device (3), the stroking device (3) being adapted to provide a pushing force of sufficient strength to force the heating device into the hydrate plug (1). The heating device then has a large surface towards the hydrate plug. When heat is applied to the heating device, the hydrate plug will melt. A hydrate inhibitor may be added to the liquid near the hydrate plug.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 13, 2015
    Assignee: Hydratservices AS
    Inventors: Geir Habesland, William Steffensen
  • ARRANGEMENT, DEVICE AND METHOD FOR RESOLVING HYDRATE PLUGS
    Publication number: 20130199783
    Abstract: An arrangement for resolving a hydrate plug (1) in a pipeline (2), such as tubing, drill pipe, casing etc., is described, said arrangement comprising a heating device (4) run on wire line. The heating device (4) is elongated and spear shaped and is mounted on a stroking device (3), the stroking device (3) being adapted to provide a pushing force of sufficient strength to force the heating device into the hydrate plug (1). The heating device then has a large surface towards the hydrate plug. When heat is applied to the heating device, the hydrate plug will melt. A hydrate inhibitor may be added to the liquid near the hydrate plug.
    Type: Application
    Filed: May 20, 2011
    Publication date: August 8, 2013
    Applicant: Hydratservices AS
    Inventors: Geir Habesland, William Steffensen