Patents by Inventor Nasser Dilmaghani Zadeh

Nasser Dilmaghani Zadeh 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).

  • Methods and apparatus for removing deposits on components in a downhole tool
    Patent number: 7874355
    Abstract: Methods and apparatus for removing deposits on components in a downhole tool are described. An example apparatus to remove a deposit on an inner surface of a flowline in a downhole tool includes a movable scraper disposed in a flowline of a downhole tool. The movable scraper is configured to selectively obstruct the flowline so that a fluid flowing in the flowline moves the movable scraper in the flowline. Additionally, the movable scraper has an outer surface configured to engage an inner surface of the flowline so that movement of the outer surface along the inner surface removes a deposit on at least a portion of the inner surface.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: January 25, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael O'Keefe, Sophie Nazik Godefroy, Nasser Dilmaghani Zadeh
  • METHODS AND APPARATUS FOR REMOVING DEPOSITS ON COMPONENTS IN A DOWNHOLE TOOL
    Publication number: 20100000728
    Abstract: Methods and apparatus for removing deposits on components in a downhole tool are described. An example apparatus to remove a deposit on an inner surface of a flowline in a downhole tool includes a movable scraper disposed in a flowline of a downhole tool. The movable scraper is configured to selectively obstruct the flowline so that a fluid flowing in the flowline moves the movable scraper in the flowline. Additionally, the movable scraper has an outer surface configured to engage an inner surface of the flowline so that movement of the outer surface along the inner surface removes a deposit on at least a portion of the inner surface.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 7, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: MICHAEL O'KEEFE, SOPHIE NAZIK GODEFROY, NASSER DILMAGHANI ZADEH