Patents by Inventor Sukhjit Aujla
Sukhjit Aujla 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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Publication number: 20240101908Abstract: The invention relates to method and composition for treating tailings from a separation process, where bitumen is separated from mineral solids. Tailings comprise an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method comprises addition of a flocculating agent comprising polyacrylamide to the tailings, as well as addition of an auxiliary agent comprising ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which comprise solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition comprises a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: ApplicationFiled: October 3, 2023Publication date: March 28, 2024Inventors: Thomas FENDERSON, Lasse KYLLONEN, Alistair KING, Evangelos SKLAVOUNOS, Frances FOURNIER, Sukhjit AUJLA
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Patent number: 11845899Abstract: The invention relates to method and composition for treating tailings from a separation process, where bitumen is separated from mineral solids. Tailings comprise an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method comprises addition of a flocculating agent comprising polyacrylamide to the tailings, as well as addition of an auxiliary agent comprising ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which comprise solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition comprises a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: GrantFiled: April 1, 2021Date of Patent: December 19, 2023Assignee: KEMIRA OYJInventors: Thomas Fenderson, Lasse Kyllonen, Alistair King, Evangelos Sklavounos, Frances Fournier, Sukhjit Aujla
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Patent number: 11753580Abstract: An inverse emulsion composition comprising: one or more hydrophobic liquids having a boiling point at least about 100° C.; up to about 38% by weight of one or more acrylamide-(co)polymers; one or more emulsifier surfactants; and one or more inverting surfactants; wherein, when the composition is inverted in an aqueous solution, it provides an inverted solution having a filter ratio using a 1.2 micron filter (FR1.2) of about 1.5 or less.Type: GrantFiled: April 17, 2019Date of Patent: September 12, 2023Assignee: KEMIRA OYJInventors: Logan Jackson, Thomas J. Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla, Do Hoon Kim, Dennis Arun Alexis
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Patent number: 11560323Abstract: The present embodiments generally relate to the use of one or more polymers, e.g., one or more dry acid polymers and/or one or more dry acid polymers with salt, as flocculants, generally for treating tailings, e.g., oil sands tailings, in need of solid-liquid separation, e.g., in order to efficiently recycle water and/or to reduce the volume of tailings which may be transferred to a tailings pond and/or a dedicated disposal area.Type: GrantFiled: April 14, 2021Date of Patent: January 24, 2023Assignee: KEMIRA OYJInventors: Duane C. Wilson, Thomas Fenderson, Igal Maasen, Sukhjit Aujla
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Patent number: 11299409Abstract: Provided herein are liquid polymer (LP) compositions comprising an acrylamide (co)polymer, as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of acrylamide (co)polymer of from about 50 to about 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in dewatering, clarification, flocculation and/or thickening applications, and the like.Type: GrantFiled: December 7, 2016Date of Patent: April 12, 2022Assignees: KEMIRA OYJ, CHEVRON U.S.A. INC.Inventors: Logan Jackson, Thomas J. Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla, Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik
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Publication number: 20220033706Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.Type: ApplicationFiled: August 6, 2021Publication date: February 3, 2022Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
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Publication number: 20210300803Abstract: The present embodiments generally relate to the use of one or more polymers, e.g., one or more dry acid polymers and/or one or more dry acid polymers with salt, as flocculants, generally for treating tailings, e.g., oil sands tailings, in need of solid-liquid separation, e.g., in order to efficiently recycle water and/or to reduce the volume of tailings which may be transferred to a tailings pond and/or a dedicated disposal area.Type: ApplicationFiled: April 14, 2021Publication date: September 30, 2021Inventors: Duane C. Wilson, Thomas Fenderson, Igal Maasen, Sukhjit Aujla
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Publication number: 20210284914Abstract: The invention relates to method and composition for treating tailings from a separation process, where bitumen is separated from mineral solids. Tailings comprise an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method comprises addition of a flocculating agent comprising polyacrylamide to the tailings, as well as addition of an auxiliary agent comprising ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which comprise solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition comprises a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: ApplicationFiled: April 1, 2021Publication date: September 16, 2021Inventors: Thomas FENDERSON, Lasse KYLLONEN, Alistair KING, Evangelos SKLAVOUNOS, Frances FOURNIER, Sukhjit AUJLA
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Patent number: 11084973Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.Type: GrantFiled: April 17, 2020Date of Patent: August 10, 2021Assignee: Chevron U.S.A. Inc.Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
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Publication number: 20210238482Abstract: The invention relates to a surfactant composition comprising an ionic liquid prepared from an unsubstituted or substituted primary, secondary or tertiary amine, or from an unsubstituted or substituted pyridine, amidine or guanidine with at least one fatty acid and/or resin acid. The invention also relates to a method for treating bitumen froth from a separation process, where bitumen is separated from mineral solids. The method comprises addition of said surfactant composition to the diluent and/or to the froth before phase separation.Type: ApplicationFiled: February 5, 2021Publication date: August 5, 2021Inventors: Lasse Kyllonen, Sukhjit Aujla, Frances Fournier, Thomas Fenderson, Alistair King, Evangelos Sklavounos
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Patent number: 11001513Abstract: The present embodiments generally relate to the use of one or more polymers, e.g., one or more dry acid polymers and/or one or more dry acid polymers with salt, as flocculants, generally for treating tailings, e.g., oil sands tailings, in need of solid-liquid separation, e.g., in order to efficiently recycle water and/or to reduce the volume of tailings which may be transferred to a tailings pond and/or a dedicated disposal area.Type: GrantFiled: October 10, 2017Date of Patent: May 11, 2021Assignee: Kemira OyjInventors: Duane C. Wilson, Thomas Fenderson, Igal Maasen, Sukhjit Aujla
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Patent number: 11001761Abstract: A method and a composition for treating tailings from a separation process are disclosed, where bitumen is separated from mineral solids. Tailings include an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method includes addition of a flocculating agent including polyacrylamide to the tailings, as well as addition of an auxiliary agent including ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which include solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition in a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: GrantFiled: December 7, 2017Date of Patent: May 11, 2021Assignee: Kemira OyjInventors: Thomas Fenderson, Lasse Kyllönen, Alistair King, Evangelos Sklavounos, Frances Fournier, Sukhjit Aujla
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Patent number: 10920149Abstract: The invention relates to a surfactant composition comprising an ionic liquid prepared from an unsubsituted or substituted primary, secondary or tertiary amine, or from an unsubstituted or substituted pyridine, amidine or guanidine with at least one fatty acid and/or resin acid. The invention also relates to a method for treating bitumen froth from a separation process, where bitumen is separated from mineral solids. The method comprises addition of said surfactant composition to the diluent and/or to the froth before phase separation.Type: GrantFiled: June 10, 2016Date of Patent: February 16, 2021Assignee: Kemira OyjInventors: Lasse Kyllönen, Sukhjit Aujla, Frances Fournier, Thomas Fenderson, Alistair King, Evangelos Sklavounos
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Patent number: 10822539Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.Type: GrantFiled: December 10, 2019Date of Patent: November 3, 2020Assignee: Chevron U.S.A. Inc.Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
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Publication number: 20200165778Abstract: Provided herein are liquid polymer (LP) compositions comprising an acrylamide (co)polymer, as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of acrylamide (co)polymer of from about 50 to about 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in dewatering, clarification, flocculation and/or thickening applications, and the like.Type: ApplicationFiled: December 7, 2016Publication date: May 28, 2020Inventors: Logan Jackson, Thomas J. Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla, Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik
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Patent number: 10626320Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.Type: GrantFiled: December 7, 2016Date of Patent: April 21, 2020Assignee: Chevron U.S.A. Inc.Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
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Publication number: 20200115621Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.Type: ApplicationFiled: December 10, 2019Publication date: April 16, 2020Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
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Patent number: 10619087Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 ?m filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.Type: GrantFiled: December 7, 2016Date of Patent: April 14, 2020Assignee: Chevron U.S.A. Inc.Inventors: Do Hoon Kim, Dennis Arun Alexis, Varadarajan Dwarakanath, David Espinosa, Taimur Malik, Logan Jackson, Tom Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla
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Publication number: 20190284478Abstract: A method and a composition for treating tailings from a separation process are disclosed, where bitumen is separated from mineral solids. Tailings include an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method includes addition of a flocculating agent including polyacrylamide to the tailings, as well as addition of an auxiliary agent including ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which include solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition in a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: ApplicationFiled: December 7, 2017Publication date: September 19, 2019Inventors: Thomas FENDERSON, Lasse KYLLÖNEN, Alistair KING, Evangelos SKLAVOUNOS, Frances FOURNIER, Sukhjit AUJLA
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Publication number: 20190241794Abstract: Liquid polymer compositions comprising: one or more hydrophobic liquids having a boiling point at least about 100° C.; at least about 39% by weight of one or more acrylamide-(co)polymers; one or more emulsifier surfactants; and one or more inverting surfactants; wherein, when the composition is inverted in an aqueous solution, it provides an inverted solution having a filter ratio using a 1.2 micron filter (FR1.2) of about 1.5 or less.Type: ApplicationFiled: April 17, 2019Publication date: August 8, 2019Inventors: Logan Jackson, Thomas J. Lynch, Ronald Robinson, Frances Fournier, Hong Yang, Sukhjit Aujla, Do Hoon Kim, Dennis Arun Alexis