Patents by Inventor Yiyan Chen

Yiyan Chen 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: 11414586
    Abstract: Compositions may contain an oleaginous base fluid, and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches. Methods may include emplacing a wellbore fluid into a wellbore, wherein the wellbore fluid contains an oleaginous base fluid; and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 16, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yiyan Chen, Dimitri M. Khramov
  • Patent number: 11377579
    Abstract: Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and an emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the emulsifier is the product of a reaction between an alkyl cyclic anhydride and a polar reactant, wherein the polar reactant is one or more selected from a group containing alkyl amine, alkanolamine, and polyamine. Methods may include drilling a wellbore with an oil-based mud, wherein the oil-based mud is an invert emulsion containing an emulsifier stabilizing the invert emulsion, wherein the emulsifier is the product of a reaction between an alkyl cyclic anhydride and a polar reactant, wherein the polar reactant is one or more selected from the group of alkyl amine, alkanolamine, and polyamine.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 5, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yiyan Chen, Dimitri M. Khramov, Reda Karoum
  • Publication number: 20220135867
    Abstract: Crosslinking fluids and methods configured for delaying gel crosslinking of the crosslinking fluid are provided. The crosslinking fluids and methods comprise mixtures of at least one crosslinking polymer, at least one crosslinker configured for crosslinking the at least one crosslinking polymer, at least one crosslink delay trigger configured for initiating crosslinking at a predetermined pH value and comprising at least one low reactivity magnesium oxide, and polar protic solvent. The at least one low reactivity magnesium oxide is produced by calcination of magnesium carbonate ore or magnesium hydroxide ore at a calcining temperature of at least 1,000° C.
    Type: Application
    Filed: September 30, 2021
    Publication date: May 5, 2022
    Inventor: Yiyan Chen
  • Patent number: 11274239
    Abstract: A fluid may include an aqueous based continuous phase, a pH adjusting additive, wherein the pH adjusting additive is formic acid, and a clay hydration suppressant agent having the formula H2NCH(CH3)CH2(OCH(CH3)CH2)xNH2, wherein x is a value less than 15.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: March 15, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Steven Philip Young, Emanuel Stamatakis, Meghan Ruth Riley, Yiyan Chen
  • Publication number: 20210323909
    Abstract: Methods may include quantifying the concentration of residual free amine and/or free carboxylic acid in a product mixture prepared from a reaction of a multireactive species and a fatty reagent; verifying that the concentration for the free amine and/or free acid in the product mixture is within an acceptable threshold for a given application; and combining the product mixture with one or more wellbore fluid components to generate the wellbore fluid. In another aspect, methods may include including reacting the multireactive species and a fatty reactant to generate a product mixture; quantifying the concentration of residual free amine and/or free carboxylic acid in the product mixture; verifying that the concentration for the free amine and/or free acid in the product mixture is within an acceptable threshold for a given application; and collecting the product mixture.
    Type: Application
    Filed: August 2, 2018
    Publication date: October 21, 2021
    Inventors: Dimitri M. Khramov, Yiyan Chen, Albert Okhrimenko
  • Patent number: 11066591
    Abstract: A composition comprising an oleaginous base fluid, an emulsifier and a liquid tertiary amide is disclosed. A wellbore fluid may include an oleaginous continuous phase, a non-oleaginous discontinuous phase and the composition to stabilize the non-oleaginous discontinuous phase within the oleaginous continuous phase. A method comprising adding the composition to a wellbore fluid and emplacing the wellbore fluid mixed with the composition into a wellbore is also provided.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 20, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dimitri M Khramov, Yiyan Chen
  • Patent number: 11028308
    Abstract: Wellbore fluids and methods of drilling with the wellbore fluids are provided. One wellbore fluid may include an oleaginous continuous phase, a non-oleaginous discontinuous phase, and a polymer having a polycyclic backbone. One method may include pumping the wellbore fluid into a wellbore through an earthen formation.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: June 8, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yiyan Chen, Dimitri M. Khramov, Glynda A. Addicks
  • Publication number: 20200362221
    Abstract: Wellbore fluid compositions may include an oleaginous base fluid; and a polymeric rheology modifier incorporating a polar comonomer at a percent by weight (wt %) in the range of 1 wt % to 20 wt %; wherein the low shear rate viscosity (LSRV) of the wellbore fluid measured by FANN 35 rheometer at 3 rpm and 150° F. is in the range of 8 to 12. Methods may include emplacing a wellbore fluid in a wellbore, wherein the wellbore fluid comprises an oleaginous base fluid and a polymeric rheology modifier incorporating a polar comonomer at a percent by weight (wt %) in the range of 1 wt % to 50 wt %; wherein the low shear rate viscosity (LSRV) of the wellbore fluid is in the range of 8 to 12.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 19, 2020
    Inventors: Dimitri M. Khramov, Yiyan Chen, Stephen Cliffe, Reda Karoum
  • Publication number: 20200165505
    Abstract: Compositions may contain an oleaginous base fluid, and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches. Methods may include emplacing a wellbore fluid into a wellbore, wherein the wellbore fluid contains an oleaginous base fluid; and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Yiyan Chen, Dimitri M. Khramov
  • Publication number: 20200124513
    Abstract: Systems and methods measure one or more rheological properties and/or parameters of a fluid and establish at least one correlation between the measured one or more rheological properties and/or parameters. The systems and methods may correlate the measured one or more rheological properties and/or parameters to static aging results to establish the at least one correlation between the one or more rheological properties and/or parameters of the fluid. The systems and methods may predict at least one sagging tendency of the fluid based on the established at least one correlation and may measure and/or monitor static sagging of the fluid based on the predicted at least one sagging tendency of the fluid. The systems and methods may guide fluid treatment of the fluid or produce a mud system based on the predicted at least one sagging tendency of the fluid.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: Yan Gao, Yiyan Chen, Reda Karoum
  • Publication number: 20200079990
    Abstract: Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and an emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the emulsifier is the product of a reaction between an alkyl cyclic anhydride and a polar reactant, wherein the polar reactant is one or more selected from a group containing alkyl amine, alkanolamine, and polyamine. Methods may include drilling a wellbore with an oil-based mud, wherein the oil-based mud is an invert emulsion containing an emulsifier stabilizing the invert emulsion, wherein the emulsifier is the product of a reaction between an alkyl cyclic anhydride and a polar reactant, wherein the polar reactant is one or more selected from the group of alkyl amine, alkanolamine, and polyamine.
    Type: Application
    Filed: December 18, 2017
    Publication date: March 12, 2020
    Inventors: Yiyan Chen, Dimitri M. Khramov, Reda Karoum
  • Patent number: 10570325
    Abstract: Compositions may contain an oleaginous base fluid, and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches. Methods may include emplacing a wellbore fluid into a wellbore, wherein the wellbore fluid contains an oleaginous base fluid; and a branched amidoamine surfactant prepared from the reaction of an alkylene amine or an oligoalkylene amine and a branched acid having a C4 to C24 primary hydrocarbon chain, and having one or more C1 to C24 branches.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: February 25, 2020
    Assignee: M-I L.L.C.
    Inventors: Yiyan Chen, Dimitri M. Khramov
  • Patent number: 10501898
    Abstract: A rigid hanger connecting structure and a bridge structure. The connecting structure includes a rigid hanger and further includes a first connecting portion connected to a top end of the rigid hanger and a second connecting portion connected to a bottom end of the rigid hanger, and the hanger is connected to the first connecting portion and/or the second connecting portion by using a spherical bearing pair. A rotatable connection between the hanger and a bridge structure is implemented to avoid cracking of concrete inside a short hanger, prolonging the service life of a bridge; the connecting ends of the hanger are located within a line of sight range convenient for maintenance, to eliminate a blind zone, improving bridge safety; the hanger can be prefabricated in a factory, shortening construction period and improving efficiency.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: December 10, 2019
    Assignee: SHENZHEN MUNICIPAL DESIGN & RESEARCH INSTITUTE CO.
    Inventors: Fang Yu, Ruijuan Jiang, Yiyan Chen, Qiming Wu, Jucan Dong
  • Patent number: 10480137
    Abstract: A flexible cable connecting structure and a bridge structure. The connecting structure includes a flexible cable; the first portion connected to a top end and a second portion connected to a bottom end by using a spherical bearing pair. By using a hinge assembly and a spherical hinge assembly, a rotatable connection between the cable and a bridge structure is implemented to avoid force uniformity of steel wires inside the cable due to inclination, thus helps prolong the service life of the cable. The connecting ends of the cable are located in a lower part of an arch rib and an upper part of a bridge floor, respectively located within a line of sight range, making it convenient for maintenance. The cable can be prefabricated in a factory, which ensures construction quality and reduces time of site construction.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: November 19, 2019
    Assignee: Shenzhen Municipal Design & Research Institute Co.
    Inventors: Ruijuan Jiang, Yiyan Chen, Fang Yu, Qiming Wu, Jucan Dong
  • Publication number: 20190322920
    Abstract: A composition comprising an oleaginous base fluid, an emulsifier and a liquid tertiary amide is disclosed. A wellbore fluid may include an oleaginous continuous phase, a non-oleaginous discontinuous phase and the composition to stabilize the non-oleaginous discontinuous phase within the oleaginous continuous phase. A method comprising adding the composition to a wellbore fluid and emplacing the wellbore fluid mixed with the composition into a wellbore is also provided.
    Type: Application
    Filed: December 19, 2017
    Publication date: October 24, 2019
    Inventors: Dimitri M Khramov, Yiyan Chen
  • Patent number: 10429257
    Abstract: A high-damping rubber isolation bearing, an intelligent bearing and a bearing monitoring system are disclosed. The high-damping rubber isolation bearing comprises a top bearing plate, a bottom bearing plate, a high-damping rubber bearing body and a base plate, wherein at least one pressure sensing unit is arranged between the top bearing plate and the base plate, or between the bottom bearing plate and the base plate. The intelligent bearing includes a data acquisition unit, a data output unit and the high-damping rubber isolation bearing. The data acquisition unit transmits the bearing pressure measured by the at least one pressure sensing unit to the data output unit. The bearing monitoring system includes a data acquisition unit, a data output unit, a monitoring center and the high-damping rubber isolation bearing.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: October 1, 2019
    Assignees: Shenzhen Municipal Design & Research Institute Co., Ltd., Shenzhen Innova-Wise Engineering Technology Consulting Co., Ltd.
    Inventors: Fang Yu, Ruijuan Jiang, Yiyan Chen, Weiming Gai, Jie Peng, Jucan Dong
  • Patent number: 10351762
    Abstract: A composition, treatment fluid and method using hydrolyzable fines. A treatment fluid, which may optionally include a high solids content fluid (HSCF) and/or an Apollonianistic solids mixture, includes a fluid loss control agent comprising a dispersion of hydrolyzable fines, optionally with one or more of a surfactant, plasticizer, dispersant, degradable particles, reactive particles and/or submicron particles selected from silicates, ?-alumina, MgO, ?-Fe2O3, TiO2, and combinations thereof.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 16, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Anthony Loiseau, Yiyan Chen, Mohan Kanaka Raju Panga
  • Publication number: 20190071595
    Abstract: A fluid may include an aqueous based continuous phase, a pH adjusting additive, wherein the pH adjusting additive is formic acid, and a clay hydration suppressant agent having the formula H2NCH(CH3)CH2(OCH(CH3)CH2)xNH2, wherein x is a value less than 15.
    Type: Application
    Filed: July 31, 2015
    Publication date: March 7, 2019
    Inventors: Steven Philip Young, Emanuel Stamatakis, Meghan Ruth Riley, Yiyan Chen
  • Publication number: 20190063014
    Abstract: The present invention relates to the field of construction engineering, and discloses a rigid hanger connecting structure and a bridge structure. The connecting structure includes a rigid hanger and further includes a first connecting portion connected to a top end of the rigid hanger and a second connecting portion connected to a bottom end of the rigid hanger, and the hanger is connected to the first connecting portion and/or the second connecting portion by using a spherical bearing pair. In the present invention, a rotatable connection between the hanger and a bridge structure is implemented to avoid cracking of concrete inside a short hanger, prolonging the service life of a bridge; the connecting ends of the hanger are located within a line of sight range convenient for maintenance, to eliminate a blind zone, improving bridge safety; the hanger can be prefabricated in a factory, shortening construction period and improving efficiency.
    Type: Application
    Filed: February 24, 2017
    Publication date: February 28, 2019
    Inventors: Fang YU, Ruijuan JIANG, Yiyan CHEN, Qiming WU, Jucan DONG
  • Publication number: 20190063016
    Abstract: The present invention relates to the field of construction engineering; a flexible cable connecting structure and a bridge structure. The connecting structure includes a flexible cable; the first portion connected to a top end and a second portion connected to a bottom end by using a spherical bearing pair. By using a hinge assembly and a spherical hinge assembly, a rotatable connection between the cable and a bridge structure is implemented to avoid force uniformity of steel wires inside the cable due to inclination, thus helps prolong the service life of the cable. The connecting ends of the cable are located in a lower part of an arch rib and an upper part of a bridge floor, respectively located within a line of sight range, making it convenient for maintenance. The cable can be prefabricated in a factory, which ensures construction quality and reduces time of site construction.
    Type: Application
    Filed: February 24, 2017
    Publication date: February 28, 2019
    Inventors: Ruijuan JIANG, Yiyan CHEN, Fang YU, Qiming WU, Jucan DONG