Patents by Inventor Shaohua Lu

Shaohua Lu 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).

  • Publication number: 20210041333
    Abstract: A manufacturing method for mass production for a tissue or cell microarray, which is characterized in comprising: using a molding device to mold tissue particles, cultivated cells or collected exfoliated cells (such as exfoliated cells from pleural effusion and ascites), forming the tissue particles from blended fresh tissue, tissue fixed by formalin or another solvent (such as alcohol and so on) or a tissue block embedded in paraffin (blended by a tissue blender), implanting the molded tissue or cells cores in a receptor wax or adhering the molded tissue or cells cores onto a metal plate, and then slicing to obtain a tissue or cell microarray.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Inventors: Yingyong HOU, Chen XU, Dongxian JIANG, Qi SONG, Haixing WANG, Yalan LIU, Jie HUANG, Lingli CHEN, Rongkui LUO, Qin HU, Yuan JI, Shaohua LU, Jun HOU, Lijuan LUAN, Jieakesu SU
  • Publication number: 20200216740
    Abstract: A method for drilling a borehole includes, while drilling, circulating a fluid composition. The fluid composition includes an aqueous continuous phase comprising an additive composition, the additive composition comprising an amphoteric polymer, a polyacrylamide, or a combination thereof; and an organic internal phase comprising a glycerol, a polyglycerol, a poly hydroxyl alcohol, a monosaccharide derivative, a polysaccharide derivative, or a combination thereof. In one embodiment, the additive composition includes a salt up to saturation and at least one of an amphoteric polymer or a polyacrylamide. In another embodiment, the additive composition includes a hydratable polymer, and an amphoteric polymer.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: César MISINO, Luc LEONI, Shaohua LU, Gaston Wray CURTIS
  • Patent number: 10669468
    Abstract: Compositions emulate oil based fluids include an aqueous phase and an organic internal phase, which creates an osmotic membrane within the aqueous continuous phase. The osmotic membrane allows hydration-dehydration mechanisms to be in place and control interactions between formation and fluid, where the non-aqueous phase is composed of glycerols, polyglycerols, poly hydroxyl alcohols, monosaccharide derivatives, polysaccharide derivatives, or mixtures and combinations thereof, while the aqueous phase contains additives that impart different inhibiting mechanisms to the overall composition, where the additives include, without limitation, amphoteric polymers, potassium and/or sodium salts up to saturation and/or acrylamides.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 2, 2020
    Inventors: César Misino, Luc Leoni, Shaohua Lu, Gaston Wray Curtis
  • Patent number: 10190032
    Abstract: Wellbore fluids may include at least one viscoelastic surfactant, a first brine solution including one or more water soluble monovalent cation salts, and a second brine solution including one or more water soluble divalent cation salts in an amount effective to increase the viscosity of the wellbore fluid. The wellbore fluid may be injected into a wellbore as a gravel packing agent, to enhance the thermal insulation of a production tubing or transfer pipe surrounded by at least one annuli, or to reduce fluid loss.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: January 29, 2019
    Assignee: M-I L.L.C.
    Inventor: Shaohua Lu
  • Patent number: 10144861
    Abstract: Described is a method including emplacing a breaker fluid into a wellbore drilled with an oil-based drilling fluid that forms an oil-based filter cake. The breaker fluid includes a non-oleaginous base fluid and a surfactant blend comprising an alkyl polyglycoside, an ethoxylated alcohol, and a triethyleneglycol monobutyl ether. The method further includes allowing the breaker fluid to break the oil-based filter cake.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: December 4, 2018
    Assignee: M-I L.L.C.
    Inventor: Shaohua Lu
  • Publication number: 20160108303
    Abstract: A wellbore fluid is provided that includes at least one viscoelastic surfactant, a first brine solution including one or more water soluble monovalent cation salts, and a second brine solution including one or more water soluble divalent cation salts in an amount effective to increase the viscosity of the wellbore fluid. The wellbore fluid may be injected into a wellbore as a gravel packing agent, to enhance the thermal insulation of a production tubing or transfer pipe surrounded by at least one annuli, or to reduce fluid loss.
    Type: Application
    Filed: June 21, 2012
    Publication date: April 21, 2016
    Applicant: M-I L.L.C.
    Inventor: Shaohua LU
  • Publication number: 20160009977
    Abstract: A wellbore fluid is provided having controllable viscosity, which includes a brine having a monovalent salt and/or a polyvalent salt; an encapsulated monovalent salt and/or an encapsulated polyvalent salt; and a viscoelastic surfactant, where the wellbore fluid contains at least one monovalent salt and at least one polyvalent salt in the form of a brine and/or an encapsulated salt.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 14, 2016
    Inventor: Shaohua LU
  • Publication number: 20150337195
    Abstract: Described is a method including emplacing a breaker fluid into a wellbore drilled with an oil-based drilling fluid that forms an oil-based filter cake. The breaker fluid includes a non-oleaginous base fluid and a surfactant blend comprising an alkyl polyglycoside, an ethoxylated alcohol, and a triethyleneglycol monobutyl ether. The method further includes allowing the breaker fluid to break the oil-based filter cake.
    Type: Application
    Filed: May 31, 2013
    Publication date: November 26, 2015
    Inventor: Shaohua LU
  • Publication number: 20150096808
    Abstract: Compositions emulate oil based fluids include an aqueous phase and an organic internal phase, which creates an osmotic membrane within the aqueous continuous phase. The osmotic membrane allows hydration-dehydration mechanisms to be in place and control interactions between formation and fluid, where the non-aqueous phase is composed of glycerols, polyglycerols, poly hydroxyl alcohols, monosaccharide derivatives, polysaccharide derivatives, or mixtures and combinations thereof, while the aqueous phase contains additives that impart different inhibiting mechanisms to the overall composition, where the additives include, without limitation, amphoteric polymers, potassium and/or sodium salts up to saturation and/or acrylamides.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: César Misino, Luc Leoni, Shaohua Lu, Gaston Wray Curtis
  • Patent number: 8584760
    Abstract: A method of cleaning walls of a wellbore that includes contacting the walls with a cleaning fluid, the cleaning fluid comprising: a base fluid comprising a blend of a base oil and at least one of a mutual solvent or a terpene; and an alkyl glycoside is disclosed herein.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: November 19, 2013
    Assignee: M-I L.L.C.
    Inventors: Morris Arvie, Jr., Shaohua Lu, Eugene Dakin
  • Publication number: 20110272160
    Abstract: A method of cleaning walls of a wellbore that includes contacting the walls with a cleaning fluid, the cleaning fluid comprising: a base fluid comprising a blend of a base oil and at least one of a mutual solvent or a terpene; and an alkyl glycoside is disclosed herein.
    Type: Application
    Filed: January 8, 2010
    Publication date: November 10, 2011
    Applicant: M-I L.L.C.
    Inventors: Morris Arvie, JR., Shaohua Lu, Eugene Dakin
  • Patent number: 8002988
    Abstract: Embodiments of the present invention relate to the removal of contaminants from water using sugar based surfactant enhanced ultrafiltration. Embodiments of the present invention are directed to a process for removal of an at least slightly water-soluble organic compound from an organic-contaminated water solution to provide a purified water solution, including: adding a surfactant to the organic-contaminated water solution in sufficient quantity to achieve at least a critical micellar concentration of the surfactant in the organic-contaminated water solution, wherein the surfactant comprises an alkylglycoside, to provide a micellar water solution comprising micelles comprising the surfactant and the organic compound; contacting an ultrafiltration membrane with the micellar water solution under pressure and temperature conditions sufficient for liquid flow through the ultrafiltration membrane to take place; and collecting liquid permeating the ultrafiltration membrane to provide the purified water solution.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: August 23, 2011
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Ponisseril Somasundaran, Shaohua Lu
  • Publication number: 20080308495
    Abstract: Embodiments of the present invention relate to the removal of contaminants from water using sugar based surfactant enhanced ultrafiltration. Embodiments of the present invention are directed to a process for removal of an at least slightly water-soluble organic compound from an organic-contaminated water solution to provide a purified water solution, including: adding a surfactant to the organic-contaminated water solution in sufficient quantity to achieve at least a critical micellar concentration of the surfactant in the organic-contaminated water solution, wherein the surfactant comprises an alkylglycoside, to provide a micellar water solution comprising micelles comprising the surfactant and the organic compound; contacting an ultrafiltration membrane with the micellar water solution under pressure and temperature conditions sufficient for liquid flow through the ultrafiltration membrane to take place; and collecting liquid permeating the ultrafiltration membrane to provide the purified water solution.
    Type: Application
    Filed: April 28, 2008
    Publication date: December 18, 2008
    Inventors: Ponisseril Somasundaran, Shaohua Lu