Patents by Inventor Leah M. Johnson
Leah M. Johnson 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).
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Patent number: 11041116Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: GrantFiled: November 5, 2019Date of Patent: June 22, 2021Assignees: ARAMCO SERVICES COMPANY, RTI INTERNATIONALInventors: Leah M. Johnson, Ghaithan Al-Muntasheri, Ginger Denison Rothrock, Sarah Shepherd
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Patent number: 11041117Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: GrantFiled: November 5, 2019Date of Patent: June 22, 2021Assignees: ARAMCO SERVICES COMPANY, RTI INTERNATIONALInventors: Leah M. Johnson, Ghaithan Al-Muntasheri, Ginger Denison Rothrock, Sarah Shepherd
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Publication number: 20200355677Abstract: Acoustically responsive particles and methods are provided for their use. Methods are provided for making and using tunable, monodisperse acoustically responsive particles and negative contrast acoustic particles, wherein the particles can contain a functional group available for covalent modification.Type: ApplicationFiled: July 29, 2020Publication date: November 12, 2020Inventors: Leah M Johnson, Gabriel Lopez, Lu Gao, Charles Wyatt Shields, IV
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Publication number: 20200231869Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: ApplicationFiled: November 5, 2019Publication date: July 23, 2020Inventors: Leah M. JOHNSON, Ghaithan AL-MUNTASHERI, Ginger Denison ROTHROCK, Sarah SHEPHERD
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Publication number: 20200231868Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: ApplicationFiled: November 5, 2019Publication date: July 23, 2020Inventors: Leah M. JOHNSON, Ghaithan AL-MUNTASHERI, Ginger Denison ROTHROCK, Sarah SHEPHERD
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Patent number: 10501687Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: GrantFiled: March 10, 2017Date of Patent: December 10, 2019Assignees: Aramco Services Company, RTI InternationalInventors: Leah M. Johnson, Ghaithan Al-Muntasheri, Ginger Denison Rothrock, Sarah Sheperd
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Publication number: 20180120307Abstract: Acoustically responsive particles and methods are provided for their use. Methods are provided for making and using tunable, monodisperse acoustically responsive particles and negative contrast acoustic particles, wherein the particles can contain a functional group available for covalent modification.Type: ApplicationFiled: October 24, 2017Publication date: May 3, 2018Inventors: Leah M. Johnson, Gabriel P. Lopez, Lu Gao, Charles Wyatt Shields, IV
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Patent number: 9797897Abstract: Acoustically responsive particles and methods are provided for their use. Methods are provided for making and using tunable, monodisperse acoustically responsive particles and negative contrast acoustic particles, wherein the particles can contain a functional group available for covalent modification.Type: GrantFiled: March 15, 2013Date of Patent: October 24, 2017Assignee: DUKE UNIVERSITYInventors: Leah M. Johnson, Gabriel P. Lopez, Lu Gao, Charles Wyatt Shields, IV
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Publication number: 20170183564Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: ApplicationFiled: March 10, 2017Publication date: June 29, 2017Inventors: Leah M. JOHNSON, Ghaithan AL-MUNTASHERI, Ginger Denison ROTHROCK, Sarah SHEPERD
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Patent number: 9631139Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: GrantFiled: July 17, 2014Date of Patent: April 25, 2017Assignees: ARAMCO SERVICES COMPANY, RTI INTERNATIONALInventors: Leah M. Johnson, Ghaithan M. Al-Muntasheri, Ginger Denison Rothrock, Sarah Shepherd
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Publication number: 20160017215Abstract: A polymer-encapsulated mineral acid solution and a method for forming the polymer-encapsulated mineral acid solution. Introducing a strong mineral acid solution to a monomer solution occurs such that a primary emulsion that is a water-in-oil type emulsion forms. Introducing the primary emulsion to a second aqueous solution forms a secondary emulsion that is a water-in-oil-in-water type double emulsion. The monomer in the secondary emulsion is cured such a polymerized shell forms that encapsulates the strong mineral acid solution and forms the capsule. The strong mineral acid solution has up to 30 wt. % strong mineral acid. A method of stimulating a hydrocarbon-bearing formation using the polymer-encapsulated mineral acid solution includes introducing a capsule suspension into a fissure in the hydrocarbon-bearing formation to be stimulated through a face in a well bore. The capsule is maintained within the fissure until the polymer shell degrades.Type: ApplicationFiled: July 17, 2014Publication date: January 21, 2016Inventors: Ghaithan Al-Muntasheri, Ginger Denison Rothrock, Leah M. Johnson, Sarah Shepherd
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Publication number: 20150118692Abstract: Acoustically responsive particles and methods are provided for their use. Methods are provided for making and using tunable, monodisperse acoustically responsive particles and negative contrast acoustic particles, wherein the particles can contain a functional group available for covalent modification.Type: ApplicationFiled: March 15, 2013Publication date: April 30, 2015Inventors: Leah M. Johnson, Gabriel P. Lopez, Lu Gao, Charles Wyatt Shields, IV