Patents by Inventor Volker Riha

Volker Riha 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).

  • Process for the production of mineral oil
    Patent number: 8602099
    Abstract: The present invention relates to a process for the production of mineral oil from mineral oil deposits with large temperature gradients, in which, for increasing the mineral oil yield, highly permeable regions of the mineral oil formation are blocked by injecting formulations which, after being forced into the deposit, form highly viscous gels under the influence of the deposit temperature. A plurality of portions of the formulation which in each case can form gels at different temperatures and therefore result in very complete blocking of highly permeable regions of the formation are used.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: December 10, 2013
    Assignees: Wintershall Holding GmbH, Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy
    Inventors: Vladimir Stehle, Konrad Siemer, Volker Riha, Dmitry Kuznetsov, Liubov Altunina, Vladimir A. Kuvshinov
  • PROCESS FOR THE PRODUCTION OF MINERAL OIL
    Publication number: 20110088899
    Abstract: The present invention relates to a process for the production of mineral oil from mineral oil deposits with large temperature gradients, in which, for increasing the mineral oil yield, highly permeable regions of the mineral oil formation are blocked by injecting formulations which, after being forced into the deposit, form highly viscous gels under the influence of the deposit temperature. A plurality of portions of the formulation which in each case can form gels at different temperatures and therefore result in very complete blocking of highly permeable regions of the formation are used.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 21, 2011
    Applicants: Wintershall Holding GmbH, Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences
    Inventors: Vladimir Stehle, Konrad Siemer, Volker Riha, Dmitry Kuznetsov, Liubov Altunina, Vladimir A. Kuvshinov