Patents by Inventor Donald Sieben

Donald Sieben 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).

  • Coil tubing hanger and method of using same
    Patent number: 7325600
    Abstract: A coil tubing hanger includes a hanger body having a hanger base with a lower end for connection to a well tree, an upper end for connection of a hanger cap and an internal cylindrical cavity for receiving an annular, externally actuated, pack-off element for selectively providing a high-pressure fluid seal against the coil tubing. The hanger cap seals the cylindrical cavity and provides a slip bowl. Slips received in the slip bowl suspend the coil tubing. An injection nipple mounted to the slip bowl includes an injection nipple port through which the coil tubing extends, and a surface pack-off provides a high pressure fluid seal around the coil tubing above the slips, so that the pack-off element may be released from the coil tubing after the coil tubing is landed and the surface pack-off is secured.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: February 5, 2008
    Assignee: BJ Services Company, U.S.A.
    Inventor: Donald Sieben
  • Coil tubing hanger and method of using same
    Publication number: 20060180317
    Abstract: A coil tubing hanger includes a hanger body having a hanger base with a lower end for connection to a well tree, an upper end for connection of a hanger cap and an internal cylindrical cavity for receiving an annular, externally actuated, pack-off element for selectively providing a high-pressure fluid seal against the coil tubing. The hanger cap seals the cylindrical cavity and provides a slip bowl. Slips received in the slip bowl suspend the coil tubing. An injection nipple mounted to the slip bowl includes an injection nipple port through which the coil tubing extends, and a surface pack-off provides a high pressure fluid seal around the coil tubing above the slips, so that the pack-off element may be released from the coil tubing after the coil tubing is landed and the surface pack-off is secured.
    Type: Application
    Filed: February 15, 2005
    Publication date: August 17, 2006
    Inventor: Donald Sieben