Patents by Inventor Andrei Zelenev

Andrei Zelenev 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).

  • METHODS AND COMPOSITIONS FOR USE IN OIL AND/OR GAS WELLS
    Publication number: 20140338911
    Abstract: Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives.
    Type: Application
    Filed: March 14, 2014
    Publication date: November 20, 2014
    Applicant: CESI Chemical Inc.
    Inventors: Keith Ingram Dismuke, Randal M. Hill, Andrei Zelenev, James Silas, David Germack, Lakia M. Champagne, Charles Earl Hammond, John T. Pursley, Glenn S. Penny, Michael A. Bryan, Maria Elizabeth Green, Monica Gonzalez-Roldan, Melinda Soeung, Hasnain Saboowala, Angus Fursdon-Welsh, Nathan L. Lett, Nicole Mast, Joby Hughes
  • DRAG-REDUCING COPOLYMER COMPOSITIONS
    Publication number: 20140323366
    Abstract: A method of preparing and using a drag-reducing composition in a well treatment operation includes the step of preparing the drag-reducing composition by mixing a polymer emulsion that includes a first surfactant and a first solvent, with a second surfactant and a second solvent. The method continues with the step of combining the drag-reducing composition with an aqueous treatment fluid. The method further includes the step of injecting the drag-reducing composition and aqueous treatment fluid into a subterranean formation, a pipeline or a gathering line.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 30, 2014
    Inventors: Earl Parnell, Todd Sanner, Marlin Holtmyer, David Philpot, Andrei Zelenev, Gydeon Gilzow, Thomas Sifferman, Lakia Champagne
  • Drag-reducing copolymer compositions
    Patent number: 8865632
    Abstract: A drag-reducing additive includes 40-85% by weight of a polymer emulsion that includes a polymer, a first surfactant, and a first solvent; 10-35% by weight of a second surfactant with an HLB greater than 8; and 5-30% by weight of a second solvent. In a preferred embodiment, the second solvent includes a terpene. In another preferred embodiment, the polymer is a copolymer that includes acrylamide and acrylic acid.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 21, 2014
    Assignee: CESI Chemical, Inc.
    Inventors: Earl Parnell, Todd Sanner, Marlin Holtmyer, David Philpot, Andrei Zelenev, Gydeon Gilzow, Lakia Champagne, Thomas Sifferman
  • SILOXANE SURFACTANT ADDITIVES FOR OIL AND GAS APPLICATIONS
    Publication number: 20140262288
    Abstract: A well treatment additive includes a siloxane surfactant, a solvent and an aqueous phase. The solvent is preferably a terpene hydrocarbon. Also disclosed is a method for using the well treatment additive to form and enhance the properties of terpene solvent based additives useful for the treatment of oil and gas wells. Methods of using the novel well treatment additives include using the additives in a variety of well treatment processes including, but not limited to, acidizing operations, hydraulic fracturing operations, well remediation operations and water removal operations.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Glenn S. Penny, Keith Dismuke, Richard Fox, Andrei Zelenev, Randal M. Hill
  • DRAG-REDUCING COPOLYMER COMPOSITIONS
    Publication number: 20120035085
    Abstract: A method of preparing and using a drag-reducing composition in a well treatment operation includes the step of preparing the drag-reducing composition by mixing a polymer emulsion that includes a first surfactant and a first solvent, with a second surfactant and a second solvent. The method continues with the step of combining the drag-reducing composition with an aqueous treatment fluid. The method further includes the step of injecting the drag-reducing composition and aqueous treatment fluid into a subterranean formation, a pipeline or a gathering line.
    Type: Application
    Filed: October 14, 2011
    Publication date: February 9, 2012
    Applicant: CESI CHEMICAL, INC.
    Inventors: Earl Parnell, Todd Sanner, Marlin Holtmyer, David Philpot, Andrei Zelenev, Gydeon Gilzow, Lakia Champagne, Thomas Sifferman