Patents by Inventor Jenn-Tai Liang
Jenn-Tai Liang 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: 11884881Abstract: The disclosure is directed to methods and compositions delaying the gelation of polymers in water flooding by sequentially or co-injecting a carboxylate-containing polymer solution, a gel-delaying polymer, and gelation agent into a hydrocarbon reservoir. Delays of weeks are observed.Type: GrantFiled: June 10, 2022Date of Patent: January 30, 2024Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, Terry M. Christian, Riley B. Needham, Min Cheng
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Patent number: 11820939Abstract: The instant application relates to nanogels or compositions that hold multivalent metal ions until some level of nanogel degradation has occurred, then slowly release the multivalent metal ions for gelation with carboxylate containing polymers. Compositions comprising such nanogels, together with polymers that can be crosslinked with multivalent metal ions, allow the deployment of such mixtures in various applications, and greatly increased gelation times.Type: GrantFiled: June 22, 2022Date of Patent: November 21, 2023Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, Terry M. Christian, Riley B. Needham, Min Cheng, Faye Lynn Scully, James H. Hedges
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Patent number: 11814578Abstract: The invention is directed to delayed gelation agents comprising a degradable polymeric cage containing therein one or more gelation agents. The cage degrades in situ, e.g, in an oil reservoir, thus releasing the gelation agent(s), which can then crosslink second polymers in situ to form a gel.Type: GrantFiled: May 13, 2021Date of Patent: November 14, 2023Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, David R. Zornes, Riley B Needham, James H. Hedges, Min Cheng, James P. Johnson, Faye L. Scully
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Patent number: 11692120Abstract: Provided herein are drilling muds, including water-based drilling muds. The components of the drilling muds are a degradable fluid loss additive, for example, synthetic degradable nanoparticles, a clay mineral, for example, a smectite, and a base fluid, for example, water. Also provide are methods for preventing leak-off during a drilling operation and for automatically cleaning-up filter cake after completion of a drilling process both of which utilize the drilling muds and water-based drilling muds.Type: GrantFiled: September 18, 2020Date of Patent: July 4, 2023Assignee: Texas A&M UniversityInventors: Jenn-Tai Liang, Hulli Guan
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Patent number: 11667831Abstract: Provided herein is a hydraulic fracturing fluid containing enzyme encapsulated hydrogel nanoparticles and a breaker composition of a viscosifier-degrading enzyme encapsulated in the hydrogel nanoparticle. Also provided are methods for hydraulic fracturing utilizing hydrogel nanoparticles encapsulating an enzyme as a breaker to prevent the premature degradation of the fracturing fluid, to improve transport and placement of the proppant and to facilitate subsequent cleaning of the fracturing fluid.Type: GrantFiled: September 25, 2020Date of Patent: June 6, 2023Assignee: Texas A&M UniversityInventors: Jenn-Tai Liang, Hulli Guan
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Patent number: 11649392Abstract: A variety of fluid loss control compositions and methods are provided for controlling fluid loss in a cementing operation. As described herein, polyelectrolyte complex nanoparticles and fluid loss control compositions containing polyelectrolyte complex nanoparticles can be effective for fluid loss control in a variety of cementing operations. Methods of making and methods of using the electrolyte complex nanoparticles and fluid loss control compositions containing polyelectrolyte complex nanoparticles are also provided. The polyelectrolyte complex nanoparticles can include a polycation polymer such as a branched chain polyethylenimine, and a polyanion polymer such as polyacrylic acid or poly(vinylsulfonic) acid. The polyelectrolyte complex nanoparticles can contain additional additives such as metal ions or fluid loss additives such as a cellulose polymer.Type: GrantFiled: November 3, 2018Date of Patent: May 16, 2023Assignee: The Texas A&M University SystemInventors: Ying-Ying Lin, Jenn-Tai Liang, Corbin D. Andersen
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Patent number: 11634626Abstract: The disclosure is directed to polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.Type: GrantFiled: August 25, 2021Date of Patent: April 25, 2023Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Ying-Ying Lin, Cory Berkland, Jenn-Tai Liang, Ahmad Moradi-Araghi, Terry M. Christian, Riley B. Needham, James H. Hedges, Min Cheng, Faye L. Scully, David R. Zornes
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Publication number: 20220348817Abstract: The invention is directed to stable and labile crosslinked water swellable polymeric microparticles that can be further gelled by covalent crosslinking in a transamidation reaction, methods for making same, and their various uses in the hygiene and medical arts, gel electrophoresis, packaging, agriculture, the cable industry, information technology, in the food industry, papermaking, use as flocculation aids, and the like. More particularly, the invention relates to a composition comprising expandable polymeric microparticles having labile crosslinkers and stable crosslinkers, said microparticle mixed with a fluid and an unreacted tertiary crosslinker comprising PEI or other polyamine based tertiary crosslinker that is capable of further crosslinking the microparticle on degradation of the labile crosslinker and swelling of the particle, so as to form a stable gel.Type: ApplicationFiled: July 13, 2022Publication date: November 3, 2022Applicants: CONOCOPHILLIPS COMPANY, University of KansasInventors: Ahmad MORADI-ARAGHI, Min CHENG, Riley B. Needham, James H HEDGES, Ramesh S SARATHI, Faye L SCULLY, Terry M CHRISTIAN, Huili GUAN, Cory BERKLAND, Jenn-Tai LIANG
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Publication number: 20220325170Abstract: The instant application relates to nanogels or compositions that hold multivalent metal ions until some level of nanogel degradation has occurred, then slowly release the multivalent metal ions for gelation with carboxylate containing polymers. Compositions comprising such nanogels, together with polymers that can be crosslinked with multivalent metal ions, allow the deployment of such mixtures in various applications, and greatly increased gelation times.Type: ApplicationFiled: June 22, 2022Publication date: October 13, 2022Applicants: ConocoPhillips Company, UNIVERSITY OF KANSASInventors: Huili GUAN, Cory BERKLAND, Ahmad MORADI-ARAGHI, Jenn-Tai LIANG, Terry M. CHRISTIAN, Riley B. NEEDHAM, Min CHENG, Faye Lynn SCULLY, James H. HEDGES
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Patent number: 11466198Abstract: The invention is directed to stable and labile crosslinked water swellable polymeric microparticles that can be further gelled, methods for making same, and their various uses in the hygiene and medical arts, gel electrophoresis, packaging, agriculture, the cable industry, information technology, in the food industry, papermaking, use as flocculation aids, and the like. More particularly, the invention relates to a composition comprising expandable polymeric microparticles having labile crosslinkers and stable crosslinkers, said microparticle mixed with a fluid and an unreacted tertiary crosslinker comprising PEI or other polyamine based tertiary crosslinker that is capable of further crosslinking the microparticle on degradation of the labile crosslinker and swelling of the particle, so as to form a stable gel.Type: GrantFiled: November 25, 2019Date of Patent: October 11, 2022Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Ahmad Moradi-Araghi, Min Cheng, Riley B. Needham, James H. Hedges, Ramesh S. Sarathi, Faye L. Scully, Terry M. Christian, Huili Guan, Cory Berkland, Jenn-Tai Liang
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Publication number: 20220298409Abstract: The disclosure is directed to methods and compositions delaying the gelation of polymers in water flooding by sequentially or co-injecting a carboxylate-containing polymer solution, a gel-delaying polymer, and gelation agent into a hydrocarbon reservoir. Delays of weeks are observed.Type: ApplicationFiled: June 10, 2022Publication date: September 22, 2022Applicant: University of KansasInventors: Huili GUAN, Cory BERKLAND, Ahmad MORADI ARAGHI, Jenn-Tai LIANG, Terry M. CHRISTIAN, Riley B. NEEDHAM, Min CHENG
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Patent number: 11447686Abstract: The disclosure is directed to low molecular weight polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.Type: GrantFiled: April 19, 2021Date of Patent: September 20, 2022Assignees: UNIVERSITY OF KANSAS, CONOCOPHILLIPS COMPANYInventors: Stephen J Johnson, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, Terry M. Christian, Riley B. Needham, Min Cheng, Ying-Ying Lin, Andrew B. Woodside
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Patent number: 11401455Abstract: The invention is directed to polymers that self-crosslink at acidic pH or can be crosslinked by phenolic agents in brine. Such polymers have lower viscosity and can be pumped deep into reservoirs, where they will cross link in situ, thus increasing their viscosity and/or form a gel and blocking thief zones. Methods of making and using such polymers are also provided.Type: GrantFiled: September 12, 2021Date of Patent: August 2, 2022Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, Terry M. Christian, Riley B. Needham, James H. Hedges, Min Cheng, Faye L. Scully
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Patent number: 11396624Abstract: The instant application relates to nanogels or compositions that hold multivalent metal ions until some level of nanogel degradation has occurred, then slowly release the multivalent metal ions for gelation with carboxylate containing polymers. Compositions comprising such nanogels, together with polymers that can be crosslinked with multivalent metal ions, allow the deployment of such mixtures in various applications, and greatly increased gelation times.Type: GrantFiled: July 24, 2020Date of Patent: July 26, 2022Assignees: CONOCOPHILIPS COMPANY, UNIVERSITY OF KANSASInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, Terry M. Christian, Riley B. Needham, Min Cheng, Faye Lynn Scully, James H. Hedges
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Patent number: 11390795Abstract: The invention is directed to delayed gelation agents comprising a degradable polymeric cage containing therein one or more gelation agents. The cage degrades in situ, e.g, in an oil reservoir, thus releasing the gelation agent(s), which can then crosslink second polymers in situ to form a gel.Type: GrantFiled: April 30, 2019Date of Patent: July 19, 2022Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, David R. Zornes, Riley B Needham, James H. Hedges, Min Cheng, James P. Johnson, Faye L. Scully
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Patent number: 11384279Abstract: The disclosure is directed to methods and compositions delaying the gelation of polymers in water flooding by sequentially or co-injecting a carboxylate-containing polymer solution, a gel-delaying polymer, and gelation agent into a hydrocarbon reservoir. Delays of weeks are observed.Type: GrantFiled: October 26, 2020Date of Patent: July 12, 2022Assignee: CONOCOPHILLIPS COMPANYInventors: Huili Guan, Cory Berkland, Ahmad Moradi-Araghi, Jenn-Tai Liang, Terry M. Christian, Riley B. Needham, Min Cheng
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Patent number: 11279867Abstract: Provided herein are compositions and methods for degrading polymer systems. These compositions and methods can be used to effectively degrade a range of polymers commonly used in oil and gas operations, including polymers with carbon-carbon backbones such as polyacrylamides. Further, these compositions and methods can simultaneously degrade other organic molecules and pollutants associated with oil and gas operations. The compositions and methods described herein employ reactants that are more environmentally-friendly than conventional methods and components used in, for example, polymer breaking processes.Type: GrantFiled: August 23, 2017Date of Patent: March 22, 2022Assignee: University of KansasInventors: Aaron M. Scurto, William Gilbert, Jenn-Tai Liang
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Publication number: 20210403797Abstract: The invention is directed to polymers that self-crosslink at acidic pH or can be crosslinked by phenolic agents in brine. Such polymers have lower viscosity and can be pumped deep into reservoirs, where they will cross link in situ, thus increasing their viscosity and/or form a gel and blocking thief zones. Methods of making and using such polymers are also provided.Type: ApplicationFiled: September 12, 2021Publication date: December 30, 2021Inventors: Huili GUAN, Cory BERKLAND, Ahmad MORADI-ARAGHI, Jenn-Tai LIANG, Terry M. CHRISTIAN, Riley B. NEEDHAM, James H. HEDGES, Min CHENG, Faye L. SCULLY
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Publication number: 20210388255Abstract: The disclosure is directed to polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.Type: ApplicationFiled: August 25, 2021Publication date: December 16, 2021Inventors: Ying-Ying LIN, Cory BERKLAND, Jenn-Tai LIANG, Ahmad MORADI-ARAGHI, Terry M. CHRISTIAN, Riley B. NEEDHAM, James H. HEDGES, Min CHENG, Faye L. SCULLY, David R. ZORNES
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Patent number: 11186765Abstract: The disclosure is directed to polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.Type: GrantFiled: October 5, 2018Date of Patent: November 30, 2021Assignees: CONOCOPHILLIPS COMPANY, UNIVERSITY OF KANSASInventors: Ying-Ying Lin, Cory Berkland, Jenn-Tai Liang, Ahmad Moradi-Araghi, Terry M. Christian, Riley B. Needham, James H. Hedges, Min Cheng, Faye L. Scully, David R. Zornes