Patents by Inventor Laszlo Schmidt

Laszlo Schmidt 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).

  • Enhanced oil recovery process by injecting a micellar solution of surfactants having a solubility gradient in water
    Patent number: 4648451
    Abstract: A process for the enhanced oil recovery in oil reservoirs having a significant cation exchange capacity. A displacement slug is injected into an injection well formed from several successive zones, the solubility in the injection water of the anionic surfactant which it contains being adjusted so as to increase, for compensating the rock-micellar solution interactions, from one zone of the slug to the next considering the order of introducing the different zones of the slug.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: March 10, 1987
    Assignees: Institut Francais du Petrole, Magyar Szenhidrogenipari Kutato-Fejleszto Intezet
    Inventors: Marc Baviere, Jean-Claude Moulu, Tibor Paal, Gyorgy Tiszai, Gyorgyi Gaal, Laszlo Schmidt, Gyula Gesztesi