Patents by Inventor Yusra Khan Ahmad

Yusra Khan Ahmad 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: 11401454
    Abstract: A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: August 2, 2022
    Assignee: Nissan Chemical America Corporation
    Inventors: John Edmond Southwell, Yusra Khan Ahmad
  • Patent number: 11332659
    Abstract: Provided herein are methods of increasing production from a hydrocarbon containing formation by adding a proppant to the formation, wherein a treatment fluid comprising a colloidal silica nanoparticle is added to the formation before, during or after the time the proppant is added to the formation.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: May 17, 2022
    Assignee: Nissan Chemical America Corporation
    Inventors: John Edmond Southwell, Yusra Khan Ahmad, David Holcomb
  • Patent number: 11274244
    Abstract: This invention describes and claims the stimulation of several Wolfcamp and Bone Springs targeted wells in the northern Delaware Basin using fracturing treatments and a new method employing relatively small pre-pad pill volumes of Brine Resistant Silicon Dioxide Nanoparticle Dispersions ahead of each stage of treatment have been successfully performed. The invention includes a method of extending an oil and gas system ESRV comprising the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion (“BRINE RESISTANT SDND”) to conventional oil well treatment fluids. The invention also includes a method of increasing initial production rates of an oil well by over 20.0% as compared to wells either not treated with the BRINE RESISTANT SDND technology or treated by conventional nano-emulsion surfactants. The Method focuses on the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion to conventional oil well treatment fluids.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: March 15, 2022
    Assignee: Nissan Chemical America Corporation
    Inventors: David L. Holcomb, Yusra Khan Ahmad, John Edmond Southwell
  • Patent number: 11180692
    Abstract: This invention describes and claims the stimulation of several Wolfcamp and Bone Springs targeted wells in the northern Delaware Basin using fracturing treatments and a new method employing relatively small pre-pad pill volumes of Brine Resistant Silicon Dioxide Nanoparticle Dispersions ahead of each stage of treatment have been successfully performed. The invention includes a method of extending an oil and gas system ESRV comprising the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion (“BRINE RESISTANT SDND”) to conventional oil well treatment fluids. The invention also includes a method of increasing initial production rates of an oil well by over 20.0% as compared to wells either not treated with the BRINE RESISTANT SDND technology or treated by conventional nano-emulsion surfactants. The Method focuses on the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion to conventional oil well treatment fluids.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: November 23, 2021
    Assignee: Nissan Chemical America Corporation
    Inventors: David L. Holcomb, Yusra Khan Ahmad, John Edmond Southwell
  • Publication number: 20210238471
    Abstract: A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.
    Type: Application
    Filed: April 12, 2021
    Publication date: August 5, 2021
    Inventors: John Edmond SOUTHWELL, Yusra Khan AHMAD
  • Publication number: 20210222059
    Abstract: A method of increasing production from a hydrocarbon containing formation by adding a proppant to the formation, wherein a treatment fluid comprising a colloidal silica nanoparticle is added to the formation before, during or after the time the proppant is added to the formation is described and claimed.
    Type: Application
    Filed: March 1, 2021
    Publication date: July 22, 2021
    Inventors: John Edmond SOUTHWELL, Yusra Khan AHMAD, David HOLCOMB
  • Patent number: 10975289
    Abstract: A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 13, 2021
    Assignee: Nissan Chemical America Corporation
    Inventors: John Edmond Southwell, Yusra Khan Ahmad
  • Publication number: 20210062077
    Abstract: This invention describes and claims the stimulation of several Wolfcamp and Bone Springs targeted wells in the northern Delaware Basin using fracturing treatments and a new method employing relatively small pre-pad pill volumes of Brine Resistant Silicon Dioxide Nanoparticle Dispersions ahead of each stage of treatment have been successfully performed. The invention includes a method of extending an oil and gas system ESRV comprising the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion (“BRINE RESISTANT SDND”) to conventional oil well treatment fluids. The invention also includes a method of increasing initial production rates of an oil well by over 20.0% as compared to wells either not treated with the BRINE RESISTANT SDND technology or treated by conventional nano-emulsion surfactants. The Method focuses on the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion to conventional oil well treatment fluids.
    Type: Application
    Filed: October 27, 2020
    Publication date: March 4, 2021
    Inventors: David L. Holcomb, Yusra Khan Ahmad, John Edmond Southwell
  • Patent number: 10934478
    Abstract: Provided herein are methods of increasing production from a hydrocarbon containing formation by adding a proppant to the formation, wherein a treatment fluid comprising a colloidal silica nanoparticle is added to the formation before, during or after the time the proppant is added to the formation.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: March 2, 2021
    Assignee: Nissan Chemical America Corporation
    Inventors: John Edmond Southwell, Yusra Khan Ahmad, David Holcomb
  • Publication number: 20210040381
    Abstract: This invention describes and claims the stimulation of several Wolfcamp and Bone Springs targeted wells in the northern Delaware Basin using fracturing treatments and a new method employing relatively small pre-pad pill volumes of Brine Resistant Silicon Dioxide Nanoparticle Dispersions ahead of each stage of treatment have been successfully performed. The invention includes a method of extending an oil and gas system ESRV comprising the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion (“BRINE RESISTANT SDND”) to conventional oil well treatment fluids. The invention also includes a method of increasing initial production rates of an oil well by over 20.0% as compared to wells either not treated with the BRINE RESISTANT SDND technology or treated by conventional nano-emulsion surfactants. The Method focuses on the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion to conventional oil well treatment fluids.
    Type: Application
    Filed: October 27, 2020
    Publication date: February 11, 2021
    Inventors: David L. Holcomb, Yusra Khan Ahmad, John Edmond Southwell
  • Patent number: 10870794
    Abstract: The invention includes a method of extending an oil and gas system effective stimulated reservoir volume by performing the steps of adding a brine resistant silicon dioxide nanoparticle dispersion to oil well treatment fluids. This method is found to increase initial production rates of an oil well by over 20.0% as compared to wells either not treated with the brine resistant silicon dioxide nanoparticle dispersion technology or treated by conventional nano-emulsion surfactants.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 22, 2020
    Assignee: Nissan Chemical America Corporation
    Inventors: David L. Holcomb, Yusra Khan Ahmad, John Edmond Southwell
  • Patent number: 10801310
    Abstract: A process of stimulating hydrocarbon recovery is described and claimed. This process includes introducing a gas, a liquified gas or a vaporized liquified gas, into an underground formation containing hydrocarbons such as crude oil and gas, permitting said gas to be absorbed by said hydrocarbons, and withdrawing said hydrocarbons containing the gas therein, wherein a pill of Hydrocarbon Recovery Fluid comprising surface functionalized nanoparticles is inserted into the underground formation containing hydrocarbons before, during or after the introduction of the gas, liquified gas or a vaporized liquified gas.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 13, 2020
    Assignees: Nissan Chemcial America Corporation, Messer Industries USA, Inc.
    Inventors: Robin Watts, Kevin Watts, John Edmond Southwell, David Holcomb, Naveed Aslam, Yusra Khan Ahmad
  • Publication number: 20200140748
    Abstract: A method of increasing production from a hydrocarbon containing formation by adding a proppant to the formation, wherein a treatment fluid comprising a colloidal silica nanoparticle is added to the formation before, during or after the time the proppant is added to the formation is described and claimed.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: John Edmond SOUTHWELL, Yusra Khan AHMAD, David HOLCOMB
  • Publication number: 20190382645
    Abstract: A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 19, 2019
    Inventors: John Edmond SOUTHWELL, Yusra Khan AHMAD
  • Patent number: 10377942
    Abstract: A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: August 13, 2019
    Assignee: Nissan Chemical America Corporation
    Inventors: John Edmond Southwell, Yusra Khan Ahmad
  • Publication number: 20190136123
    Abstract: This invention describes and claims the stimulation of several Wolfcamp and Bone Springs targeted wells in the northern Delaware Basin using fracturing treatments and a new method employing relatively small pre-pad pill volumes of Brine Resistant Silicon Dioxide Nanoparticle Dispersions ahead of each stage of treatment have been successfully performed. The invention includes a method of extending an oil and gas system ESRV comprising the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion (“BRINE RESISTANT SDND”) to conventional oil well treatment fluids. The invention also includes a method of increasing initial production rates of an oil well by over 20.0% as compared to wells either not treated with the BRINE RESISTANT SDND technology or treated by conventional nano-emulsion surfactants. The Method focuses on the steps of adding a Brine Resistant Silicon Dioxide Nanoparticle Dispersion to conventional oil well treatment fluids.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 9, 2019
    Inventors: David HOLCOMB, Yusra Khan AHMAD, John Edmond SOUTHWELL
  • Publication number: 20190093462
    Abstract: A process of stimulating hydrocarbon recovery is described and claimed. This process includes introducing a gas, a liquified gas or a vaporized liquified gas, into an underground formation containing hydrocarbons such as crude oil and gas, permitting said gas to be absorbed by said hydrocarbons, and withdrawing said hydrocarbons containing the gas therein, wherein a pill of Hydrocarbon Recovery Fluid comprising surface functionalized nanoparticles is inserted into the underground formation containing hydrocarbons before, during or after the introduction of the gas, liquified gas or a vaporized liquified gas.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 28, 2019
    Inventors: Robin WATTS, Kevin WATTS, John Edmond SOUTHWELL, David HOLCOMB, Naveed ASLAM, Yusra Khan AHMAD
  • Publication number: 20180291261
    Abstract: A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fluid comprises water, a non-terpene oil-based moiety, a brine resistant aqueous colloidal silica sol; and optionally a terpene or a terpenoid, wherein the brine resistant aqueous colloidal silica sol has silica particles with a surface that is functionalized with at least one moiety selected from the group consisting of a hydrophilic organosilane, a mixture of hydrophilic and hydrophobic organosilanes, or a polysiloxane oligomer, wherein the brine resistant aqueous colloidal silica sol passes at least two of three of these brine resistant tests: API Brine Visual, 24 Hour Seawater Visual and API Turbidity Meter, and wherein, when a terpene or terpenoid is present, the ratio of total water to terpene or terpenoid is at least about 15 to 1.
    Type: Application
    Filed: April 5, 2018
    Publication date: October 11, 2018
    Inventors: John Edmond SOUTHWELL, Yusra Khan AHMAD
  • Publication number: 20170247609
    Abstract: The methods disclosed herein allow for the recovery of at least 55% of residual heavy oil from porous structures. In the disclosed methods, porous structures are contacted with emulsions having an aqueous continuous phase and an organic dispersed phase. The organic dispersed phase includes organic compounds having five or fewer carbon atoms (such as natural gas), which are typically difficult to emulsify because they are unstable at ambient conditions. To solve that problem, the emulsions disclosed herein are stabilized by nanoparticles having hydrophilic exterior surfaces. The nanoparticles make up at least 0.1% of the emulsion by weight. The use of hydrophilic nanoparticles as stabilizers combines the utility of natural gas liquids in enhanced oil recovery (due to their high solubility in residual oil and attendant viscosity reduction) with the utility of emulsions (delivery of viscosity-reducing agents along with an immiscible phase to push out the trapped oil).
    Type: Application
    Filed: February 28, 2017
    Publication date: August 31, 2017
    Inventors: Hugh Daigle, Chun Huh, Yusra Khan Ahmad