Patents by Inventor Yogesh K. Choudhary

Yogesh K. Choudhary 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).

  • In-situ crosslinking with aluminum carboxylate for acid stimulation of a carbonate formation
    Patent number: 8720557
    Abstract: A method of treating a zone of a subterranean carbonate formation penetrated by a wellbore is provided. The method includes the steps of: According to an embodiment, a method of treating a zone of a subterranean carbonate formation penetrated by a wellbore is provided, the method including the steps of: (a) forming a treatment fluid comprising: (i) water; (ii) a water-soluble polymer having at least one functional group that can be crosslinked with aluminum(III); and (iii) a water-soluble aluminum carboxylate; wherein the pH of the treatment fluid is less than 1; (b) introducing the treatment fluid through the wellbore into the zone; and (c) allowing time for the strong acid in the treatment fluid to spend in the formation such that the pH of the fluid increases sufficiently for the aluminum of the aluminum carboxylate to crosslink the polymer.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: May 13, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Prajakta R. Patil, Anjali R. Sarda, Shoy C. George, Yogesh K Choudhary, Rajendra Kaigankar
  • IN-SITU CROSSLINKING WITH ALUMINUM CARBOXYLATE FOR ACID STIMULATION OF A CARBONATE FORMATION
    Publication number: 20130180713
    Abstract: A method of treating a zone of a subterranean carbonate formation penetrated by a wellbore is provided. The method includes the steps of: According to an embodiment, a method of treating a zone of a subterranean carbonate formation penetrated by a wellbore is provided, the method including the steps of: (a) forming a treatment fluid comprising: (i) water; (ii) a water-soluble polymer having at least one functional group that can be crosslinked with aluminum(III); and (iii) a water-soluble aluminum carboxylate; wherein the pH of the treatment fluid is less than 1; (b) introducing the treatment fluid through the wellbore into the zone; and (c) allowing time for the strong acid in the treatment fluid to spend in the formation such that the pH of the fluid increases sufficiently for the aluminum of the aluminum carboxylate to crosslink the polymer.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Prajakta R. Patil, Anjali R. Sarda, Shoy C. George, Yogesh K. Choudhary, Rajendra Kaigankar