Patents by Inventor Sumitra Mukhopadhyay

Sumitra Mukhopadhyay 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).

  • Patent number: 9816363
    Abstract: A method of treating a subterranean formation. The method may include providing a well treatment including a treatment complex formed of a treatment agent encapsulated, entrapped, or embedded in a polysaccharide, introducing the treatment complex into a wellbore through a subterranean formation, and allowing the treatment complex to release the treatment agent over a release time period. The method may include allowing the treatment complex to release the treatment agent after a delay time period from the introduction of the treatment complex into the wellbore.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: November 14, 2017
    Assignee: Superior Energy Services, LLC
    Inventors: Sumitra Mukhopadhyay, Chad Williams, Bernard Franklin, Eddie G. Bowen
  • Publication number: 20140338902
    Abstract: A method of treating a subterranean formation. The method may include providing a well treatment including a treatment complex formed of a treatment agent encapsulated, entrapped, or embedded in a polysaccharide, introducing the treatment complex into a wellbore through a subterranean formation, and allowing the treatment complex to release the treatment agent over a release time period. The method may include allowing the treatment complex to release the treatment agent after a delay time period from the introduction of the treatment complex into the wellbore.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 20, 2014
    Applicant: Superior Energy Services, L.L.C.
    Inventors: Sumitra Mukhopadhyay, Chad Williams, Bernard Franklin, Eddie G. Bowen
  • Publication number: 20140187450
    Abstract: A method of treating a subterranean formation. The method may include providing a fluid-loss control pill that comprises an aqueous base fluid, a gelling agent, and an internal breaker that is selected from the group consisting of inorganic delayed acids or inorganic salts. The method can include introducing the fluid-loss control pill into a subterranean formation, allowing the internal breaker to reduce the viscosity of the pill after a delay period, and allowing the fluid-loss control pill to break.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Superior Energy Services, L.L.C.
    Inventor: Sumitra Mukhopadhyay
  • Publication number: 20140182854
    Abstract: A method of treating a subterranean formation. The method may include providing a fluid loss control pill that comprises an aqueous base fluid, a gelling agent, and an internal breaker that is selected from the group consisting of inorganic delayed acids or inorganic salts. The method can include introducing the fluid loss control pill into a subterranean formation, allowing the internal breaker to reduce the viscosity of the pill after a delay period, and allowing the fluid loss control pill to break.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 3, 2014
    Applicant: Superior Energy Services, L.L.C.
    Inventor: Sumitra Mukhopadhyay
  • Patent number: 8361936
    Abstract: A treatment fluid composition for treating a subterranean formation penetrated by a wellbore is formed from an aqueous fluid, a hydratable polymer and a water-soluble, non-symmetrical, inorganic peroxide breaking agent, which is capable of undergoing heterolytical cleavage. A method of treating a subterranean formation penetrated by a wellbore may also be performed by forming a treatment fluid from an aqueous hydrated polymer solution. This is combined with a water-soluble, non-symmetrical, heterolytically cleavable inorganic peroxide breaking agent. The treating fluid is introduced into the formation. An optional crosslinking agent capable of crosslinking the polymer may also be included.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 29, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Sumitra Mukhopadhyay, Richard D. Hutchins, Marie Noelle Dessinges
  • Publication number: 20120325471
    Abstract: A subterranean formation penetrated by a wellbore is treated by introducing into the wellbore an encapsulated material comprising an encapsulating component formed from a regenerated ionic-liquid-dissolved compound and an active component that is encapsulated by the encapsulating component. The encapsulating material is then allowed to release the active component into the formation. In another treatment method, an encapsulated material comprising an encapsulating component and an active component that is encapsulated by the encapsulating component are introduced into the wellbore. The encapsulating component is degradable when subjected to electromagnetic radiation having a frequency of from about 300 MHz to about 300. The encapsulated material is then subjected to electromagnetic energy in the frequency range of from about 300 MHz to about 300 GHz to degrade the encapsulating component and facilitate the release the active component into the formation.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 27, 2012
    Inventor: Sumitra Mukhopadhyay
  • Publication number: 20120298354
    Abstract: Methods of sealing a subterranean formation including introducing a trigger-able fluid, the trigger-able fluid containing an ethylenically unsaturated monomer, into a subterranean formation, and using an electromagnetic trigger unit having a electromagnetic source to initiate polymerization of the ethylenically unsaturated monomer after at least a portion of the trigger-able fluid has permeated into the subterranean formation.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 29, 2012
    Inventors: Philip F. Sullivan, Sumitra Mukhopadhyay
  • Publication number: 20120241156
    Abstract: Methods and apparatus for using a fluid within a subterranean formation including forming a fluid comprising an oil-soluble resin acid and an organosilicon compound and introducing the fluid to the formation, wherein the relative permeability of the formation increases, and wherein the production of water is reduced more than if no fluid was introduced to the formation. Methods and apparatus for reducing water production within a subterranean formation including forming a fluid comprising an oil-soluble resin acid and an organosilicon compound and introducing the fluid to the formation, wherein the production of water is reduced more than if no fluid was introduced to the formation.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Inventors: Sumitra Mukhopadhyay, Syed A. Ali
  • Patent number: 7893010
    Abstract: A well treatment microemulsion for use in a subterranean formation is disclosed, the microemulsion comprises a solvent blend comprising a solvent and a co-solvent; a surfactant blend comprising a surfactant, wherein the surfactant blend is able to give formation intermediate wettability properties; an alcohol; and a carrier fluid; wherein the alcohol, the solvent and surfactant blends are combined with the carrier fluid to produce the well treatment microemulsion. By intermediate wettability it is meant that the water has an advancing contact angle on the surface between 62 and 133 degrees. The associate method of treating a subterranean formation of a well with the microemulsion and the associate method of modifying the wettability of the formation with the microemulsion are also disclosed.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: February 22, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Syed Ali, Leiming Li, Paul R. Howard, Sumitra Mukhopadhyay
  • Publication number: 20090281004
    Abstract: A well treatment microemulsion for use in a subterranean formation is disclosed, the microemulsion comprises a solvent blend comprising a solvent and a co-solvent; a surfactant blend comprising a surfactant, wherein the surfactant blend is able to give formation intermediate wettability properties; an alcohol; and a carrier fluid; wherein the alcohol, the solvent and surfactant blends are combined with the carrier fluid to produce the well treatment microemulsion. By intermediate wettability it is meant that the water has an advancing contact angle on the surface between 62 and 133 degrees. The associate method of treating a subterranean formation of a well with the microemulsion and the associate method of modifying the wettability of the formation with the microemulsion are also disclosed.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 12, 2009
    Inventors: Syed Ali, Leiming Li, Paul R. Howard, Sumitra Mukhopadhyay
  • Publication number: 20090221453
    Abstract: A treatment fluid composition for treating a subterranean formation is formed from an aqueous fluid, a hydratable polymer and a polymer breaking system. The polymer breaking system includes an oxidizing breaking agent and an activator capable of providing a bisulfite ion source. A method of treating a subterranean formation may also be performed by forming a treatment fluid comprising an aqueous hydrated polymer solution and a polymer breaking system. The polymer breaking system includes a breaking agent of an oxidizer and an activator capable of providing a bisulfite ion source. The treatment fluid is introduced into the formation.
    Type: Application
    Filed: February 2, 2009
    Publication date: September 3, 2009
    Inventors: Sumitra Mukhopadhyay, Don Williamson, Richard D. Hutchins
  • Publication number: 20090088347
    Abstract: A treatment fluid composition for treating a subterranean formation penetrated by a wellbore is formed from an aqueous fluid, a hydratable polymer and a water-soluble, non-symmetrical, inorganic peroxide breaking agent, which is capable of undergoing heterolytical cleavage. A method of treating a subterranean formation penetrated by a wellbore may also be performed by forming a treatment fluid from an aqueous hydrated polymer solution. This is combined with a water-soluble, non-symmetrical, heterolytically cleavable inorganic peroxide breaking agent. The treating fluid is introduced into the formation. An optional crosslinking agent capable of crosslinking the polymer may also be included.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Inventors: Sumitra Mukhopadhyay, Richard D. Hutchins, Marie Noelle Dessinges