Patents by Inventor Anja Erdmann

Anja Erdmann 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).

  • Integrated continuous liner expansion method
    Patent number: 8826974
    Abstract: An additional string is run through an existing string using a running string. With the strings overlapping an upper inflatable secures them together leaving gaps. The upper inflatable creates an upper expanded zone where the swage assembly is then built. The swage assembly has a seal and upon pressure being applied between the upper inflatable and the seal the swage assembly releases the running string and is pushed to expand the additional string until tagging a cement shoe. The running string is rejoined to the swage assembly and after cementing a lower inflatable is deployed to make a bell and to set an external packer if used. If there is an external packer the shoe releases and on the way out of the hole the upper inflatable sets a seal in the lap.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 9, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Joerg Lehr, Anja Erdmann, Keven O'Connor, Ines Gruetzmann
  • Integrated Continuous Liner Expansion Method
    Publication number: 20130048308
    Abstract: An additional string is run through an existing string using a running string. With the strings overlapping an upper inflatable secures them together leaving gaps. The upper inflatable creates an upper expanded zone where the swage assembly is then built. The swage assembly has a seal and upon pressure being applied between the upper inflatable and the seal the swage assembly releases the running string and is pushed to expand the additional string until tagging a cement shoe. The running string is rejoined to the swage assembly and after cementing a lower inflatable is deployed to make a bell and to set an external packer if used. If there is an external packer the shoe releases and on the way out of the hole the upper inflatable sets a seal in the lap.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Joerg Lehr, Anja Erdmann, Keven O'Connor, Ines Gruetzmann