Patents by Inventor Ole TORSAETER

Ole TORSAETER 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).

  • Method of obtaining mineral oil using a silica fluid
    Patent number: 10767103
    Abstract: Method of obtaining mineral oil, comprising the steps of: providing a fluid comprising surface-modified silica particles, introducing this fluid into a mineral oil deposit via a first well in contact with this mineral oil deposit, recycling a mixture comprising the fluid and mineral oil via the first well or a further well and separating the mineral oil from the mixture, wherein the fluid comprises surface-modified nanostructured silica particles in an aqueous phase, A) the surface modified silica particles a) being mixed aluminium-silicon oxide, where the mixed oxide component is also part of the particle surface, and b) the surface modification comprises a hydrocarbon radical which is interrupted by one or more heteroatoms and comprises a silicon atom is bonded to a carbon atom of the hydrocarbon radical, the surface modification being selected from the group consisting of Si—(CH2)n—Ym—R, where Si is the Si atom which is bonded via a C atom to a hydrocarbon radical, and n=1, 2 or 3 and m=0 or 1 R is a ra
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: September 8, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Wolfgang Lortz, Ulrich Fischer, Gabriele Bergmann, Ole Torsaeter, Katherine Rose Aurand
  • METHOD OF OBTAINING MINERAL OIL USING A SILICA FLUID
    Publication number: 20180312741
    Abstract: Method of obtaining mineral oil, comprising the steps of: providing a fluid comprising surface-modified silica particles, introducing this fluid into a mineral oil deposit via a first well in contact with this mineral oil deposit, recycling a mixture comprising the fluid and mineral oil via the first well or a further well and separating the mineral oil from the mixture, wherein the fluid comprises surface-modified nanostructured silica particles in an aqueous phase, A) the surface modified silica particles a) being mixed aluminium-silicon oxide, where the mixed oxide component is also part of the particle surface, and b) the surface modification comprises a hydrocarbon radical which is interrupted by one or more heteroatoms and comprises a silicon atom is bonded to a carbon atom of the hydrocarbon radical, the surface modification being selected from the group consisting of Si—(CH2)n—Ym—R, where Si is the Si atom which is bonded via a C atom to a hydrocarbon radical, and n=1, 2 or 3 and m=0 or 1 R is a ra
    Type: Application
    Filed: October 18, 2016
    Publication date: November 1, 2018
    Applicant: Evonik Degussa GmbH
    Inventors: Wolfgang LORTZ, Ulrich FISCHER, Gabriele BERGMANN, Ole TORSAETER, Katherine Rose AURAND