Patents Assigned to Ondeo Nalco Energy Services, L.P.
  • Patent number: 6984705
    Abstract: A composition comprising expandable cross linked polymeric microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 10 microns and a cross linking agent content of from about 9,000 to about 200,000 ppm of labile cross linkers and from 0 to about 300 ppm of non-labile cross linkers. The composition is used for modifying the permeability of subterranean formations and increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: January 10, 2006
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventors: Kin-Tai Chang, Harry Frampton, James C. Morgan
  • Patent number: 6696572
    Abstract: The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quaternized compound. Examples of the quaternized compound are quaternized imino imidazolines and quaternized amido imidazolines.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: February 24, 2004
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventor: George Richard Meyer
  • Patent number: 6599445
    Abstract: The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quaternized compound having a substituted diethylamino moiety. Examples of the quaternized compound having a substituted diethylamino moiety are quaternized diacrylamino imidazolines.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: July 29, 2003
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventor: George Richard Meyer
  • Patent number: 6569983
    Abstract: A water-soluble branched polyhydroxyetheramine, wherein the branched polyhydroxyetheramine is prepared by reacting an amine having two reactive hydrogen atoms with a diepoxide to form a polyhydroxyetheramine and then reacting the polyhydroxyetheramine with an N-alkylating agent, an aqueous composition comprising the branched polyhydroxyetheramine and use of the branched polyhydroxyetheramine to modify the permeability to water of a subterranean formation are disclosed.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 27, 2003
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventors: Duane Treybig, Kin-Tai Chang, Dennis Williams
  • Patent number: 6488868
    Abstract: The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quaternized compound having a substituted diethylamino moiety. Examples of the quaternized compound having a substituted diethylamino moiety are quaternized diacrylamino imidazolines.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: December 3, 2002
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventor: George Richard Meyer
  • Patent number: 6454003
    Abstract: This invention is directed to a composition comprising expandable cross linked polymeric microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 10 microns and a cross linking agent content of from about 9,000 to about 200,000 ppm of labile cross linkers and from 0 to about 300 ppm of non-labile cross linkers and to the use of the composition for modifying the permeability of subterranean formations and increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: September 24, 2002
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventors: Kin-Tai Chang, Harry Frampton, James C. Morgan
  • Patent number: 6454995
    Abstract: A method of reducing the formation of coke deposits on the heat-transfer surfaces of an ethylene dichloride to vinyl chloride pyrolysis furnace comprising exposing the heat transfer surfaces of said pyrolysis furnace to a phosphine selected from the group consisting of phosphines with the general formula: wherein R1, R2 and R3 are selected from the group consisting of hydrogen, chlorine, alkyl, aryl, alkylaryl and arylalkyl, wherein R1, R2 and R3 can be the same or different.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 24, 2002
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventor: Youdong Tong
  • Patent number: 6448411
    Abstract: The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quaternized compound. Examples of the quaternized compound are quaternized imino imidazolines and quaternized amido imidazolines.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: September 10, 2002
    Assignee: Ondeo Nalco Energy Services, L.P.
    Inventor: George Richard Meyer