Patents by Inventor Tzoni Trifonov Raykov

Tzoni Trifonov Raykov 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).

  • Low residue, high salinity fracturing fluids
    Patent number: 9796913
    Abstract: Low residue, high salinity fracturing fluids may be produced by hydrating a gelling agent comprising carboxymethyl hydroxypropyl guar (CMHPG) in an aqueous fluid having a total dissolved solids concentration of about 30,000 ppm or greater and a pH of about 5 to about 8; adjusting the pH of the aqueous fluid to about 9 to about 10; and then, adding a zirconate crosslinker to the aqueous fluid to yield a crosslinked-CMHPG.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 24, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Chetan Prakash, Anant Kanhoba Ghumare, Tzoni Trifonov Raykov
  • Low Residue, High Salinity Fracturing Fluids
    Publication number: 20170137700
    Abstract: Low residue, high salinity fracturing fluids may be produced by hydrating a gelling agent comprising carboxymethyl hydroxypropyl guar (CMHPG) in an aqueous fluid having a total dissolved solids concentration of about 30,000 ppm or greater and a pH of about 5 to about 8; adjusting the pH of the aqueous fluid to about 9 to about 10; and then, adding a zirconate crosslinker to the aqueous fluid to yield a crosslinked-CMHPG
    Type: Application
    Filed: May 28, 2014
    Publication date: May 18, 2017
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Chetan Prakash, Anant Kanhoba Ghumare, Tzoni Trifonov Raykov