Patents by Inventor Kai He

Kai He 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: 9969928
    Abstract: Compositions and methods for formulating treatment fluids that comprise a surfactant having reduced and delayed adsorption. In one embodiment, the method comprises: providing a fluid comprising: an aqueous base fluid, a surfactant, and a polyelectrolyte; introducing the fluid into a wellbore penetrating at least a portion of a subterranean formation; and contacting at least a portion of the subterranean formation with the polyelectrolyte. In another embodiment, the method comprises providing a fluid comprising: an aqueous base fluid, a surfactant, and a polyelectrolyte; injecting the fluid into a wellbore penetrating at least a portion of a subterranean formation at a pressure sufficient to create or enhance one or more fractures within the subterranean formation; and contacting at least a portion of the subterranean formation with the polyelectrolyte.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 15, 2018
    Assignee: Multi-Chem Group, LLC
    Inventors: Kai He, Liang Xu
  • Publication number: 20170327732
    Abstract: Surfactant compositions for enhancing oil and/or gas production from certain subterranean formations (e.g., unconventional reservoirs), and related methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a carrier fluid and a cationic surfactant comprising at least two hydrophobic heads that each comprise a quaternary cationic moiety; and introducing the treatment fluid into at least a portion of a subterranean formation.
    Type: Application
    Filed: December 22, 2014
    Publication date: November 16, 2017
    Applicant: Multi-Chem Group, LLC
    Inventors: Kai He, Funian Zhao, Liangwei Qu, Liang Xu
  • Patent number: 9803811
    Abstract: The present invention provides a method for producing high-quality light, wherein this high-quality light producing method consists of a plurality of particularly-designed process steps based on the sensitivity of human eyes and the melatonin suppression. So that, research and development engineers of lighting devices are able to manufacture a high-quality lighting unit or module through this novel method. Moreover, a variety of experimental data have proved that, the high-quality lighting unit produced by using this novel method is able to perform the advantages of high SRI (Spectrum Resemblance Index) and low MLT (Melatonin) suppression rate.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 31, 2017
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Zhe-Kai He
  • Publication number: 20170298710
    Abstract: Systems and methods for creating and/or using multi-functional surfactant complexes that may enhance surfactant treatments in subterranean formations are provided. In some embodiments, the methods comprise: providing a treatment fluid comprising an aqueous base fluid and one or more multi-functional surfactant complexes that comprise at least one surfactant and at least one polymeric additive, wherein the surfactant and the polymeric additive carry opposite charges; and introducing the treatment fluid into a well bore at a well site penetrating at least a portion of a subterranean formation.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Inventors: Liang Xu, Jayant Rane, Kai He
  • Patent number: 9725986
    Abstract: Systems and methods for creating and/or using multi-functional surfactant complexes that may enhance surfactant treatments in subterranean formations are provided. In some embodiments, the methods comprise: providing a treatment fluid comprising an aqueous base fluid and one or more multi-functional surfactant complexes that comprise at least one surfactant and at least one polymeric additive, wherein the surfactant and the polymeric additive carry opposite charges; and introducing the treatment fluid into a well bore at a well site penetrating at least a portion of a subterranean formation.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 8, 2017
    Assignee: Multi-Chem Group, LLC
    Inventors: Liang Xu, Jayant Rane, Kai He
  • Publication number: 20170210977
    Abstract: Compositions and methods for formulating treatment fluids that comprise a surfactant having reduced and delayed adsorption are provided. In one embodiment, the method comprises: providing a fluid comprising: an aqueous base fluid, a surfactant, and a polyelectrolyte; introducing the fluid into a wellbore penetrating at least a portion of a subterranean formation; and contacting at least a portion of the subterranean formation with the polyelectrolyte. In another embodiment, the method comprises providing a fluid comprising: an aqueous base fluid, a surfactant, and a polyelectrolyte; injecting the fluid into a wellbore penetrating at least a portion of a subterranean formation at a pressure sufficient to create or enhance one or more fractures within the subterranean formation; and contacting at least a portion of the subterranean formation with the polyelectrolyte.
    Type: Application
    Filed: July 2, 2014
    Publication date: July 27, 2017
    Inventors: Kai He, Liang Xu
  • Publication number: 20170211755
    Abstract: The present invention provides a method for producing high-quality light, wherein this high-quality light producing method consists of a plurality of particularly-designed process steps based on the sensitivity of human eyes and the melatonin suppression. So that, research and development engineers of lighting devices are able to manufacture a high-quality lighting unit or module through this novel method. Moreover, a variety of experimental data have proved that, the high-quality lighting unit produced by using this novel method is able to perform the advantages of high SRI (Spectrum Resemblance Index) and low MLT (Melatonin) suppression rate.
    Type: Application
    Filed: March 31, 2016
    Publication date: July 27, 2017
    Inventors: JWO-HUEI JOU, ZHE-KAI HE
  • Publication number: 20170130121
    Abstract: Systems and methods for creating surfactant-polyelectrolyte complexes at a well site are provided. In one embodiment, the methods comprise: providing a first solution comprising at least one surfactant and a second solution comprising at least one polyelectrolyte; using a stop-flow mixing apparatus at a well site to mix the first and second solutions to form one or more surfactant-polyelectrolyte complexes; using a low-dose pumping apparatus at the well site to transfer the one or more surfactant-polyelectrolyte complexes from the stop-flow mixing apparatus to a blending apparatus at the well site; using the blending apparatus to mix the one or more surfactant-polyelectrolyte complexes with an aqueous base fluid to form a treatment fluid; and introducing the treatment fluid into a well bore penetrating at least a portion of a subterranean formation at the well site.
    Type: Application
    Filed: August 1, 2014
    Publication date: May 11, 2017
    Applicant: Multi-Chem Group, LLC
    Inventors: Liang Xu, Jayant Rane, Kai He
  • Publication number: 20170126229
    Abstract: An on-chip aging sensor and associated methods for detecting counterfeit integrated circuits are shown. In one example, the on-chip aging sensor is integrated within a chip. In one example, the on-chip sensor includes both an on-chip age sensor, and an antifuse memory block including static information unique to the chip.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 4, 2017
    Inventors: Sheldon Xiangdong Tan, Kai He, Xin Huang
  • Publication number: 20160330587
    Abstract: An information obtaining method and system is provided, the system may include: a first terminal, a second terminal, and a server, where the first terminal reports position description information of a geographical building associated with a same identifier to a server; and the server determines position information of the geographical building according to the position description information of the geographical building, and obtains, according to the position information of the second terminal sent by the second terminal and the same identifier, the position information of the geographical building that is associated with the same identifier and of which a position relationship with the second terminal meets a preset condition. In this way, the position information of the second terminal and the position description information of the geographical building sent by the first terminal are both located by the server, thereby improving the accuracy of locating the geographical building.
    Type: Application
    Filed: July 21, 2016
    Publication date: November 10, 2016
    Inventors: Tao ZHANG, Lichun LI, Kai HE, Junda LI, Weixin LV, Feng LU, Sen WANG
  • Patent number: 9488586
    Abstract: A mini-reservoir device may be used to screen or otherwise determine a composition of one or more treatment fluids, additives, and other fluids. Such fluids may be for use in a subterranean formation. Methods of determining a composition may include visual analysis of each of two or more fluids, each from a plurality of candidate fluids, flowed through a mini-reservoir device, and selection of one of the plurality of candidate fluids based at least in part upon that visual analysis. Certain methods may include determining an oil recovery factor for each of one or more fluids flowed through a mini-reservoir device. In particular methods, multiple treatment fluids and/or additives, such as surfactants, may be selected based at least in part upon visual analysis of the fluids' flow through a mini-reservoir device.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 8, 2016
    Assignee: Multi-Chem Group, LLC
    Inventors: Kai He, Liang Xu
  • Publication number: 20160307252
    Abstract: A method and apparatus for processing target article information, the method comprising: receiving a target article information viewing request sent by a user terminal, the target article information viewing request comprising an identifier of a target article and a terminal identifier; determining a current location of the user terminal according to the terminal identifier; on the basis of the current location of the user terminal and the identifier of the target article, obtaining from a preset information database the information of the target article located within a preset range centering on the current location of the user terminal; and returning the obtained information of the target article to the user terminal.
    Type: Application
    Filed: June 23, 2016
    Publication date: October 20, 2016
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Tao ZHANG, Lichun LI, Kai HE, Feng LU, Sen WANG
  • Publication number: 20160222284
    Abstract: Compositions and methods for formulating treatment fluids that comprise a surfactant having reduced and delayed adsorption are provided. In one embodiment, the method comprises: introducing a first treatment fluid comprising an aqueous base fluid and a polyelectrolyte into a wellbore penetrating at least a portion of a subterranean formation; contacting at least a portion of the subterranean formation with the polyelectrolyte; and introducing a second treatment fluid comprising an aqueous base fluid and a surfactant into the wellbore penetrating at least the portion of the subterranean formation.
    Type: Application
    Filed: July 1, 2015
    Publication date: August 4, 2016
    Applicant: Halliburton Energy Services, Inc.
    Inventors: KAI HE, LIANG XU
  • Publication number: 20160123890
    Abstract: A mini-reservoir device may be used to screen or otherwise determine a composition of one or more treatment fluids, additives, and other fluids. Such fluids may be for use in a subterranean formation. Methods of determining a composition may include visual analysis of each of two or more fluids, each from a plurality of candidate fluids, flowed through a mini-reservoir device, and selection of one of the plurality of candidate fluids based at least in part upon that visual analysis. Certain methods may include determining an oil recovery factor for each of one or more fluids flowed through a mini-reservoir device. In particular methods, multiple treatment fluids and/or additives, such as surfactants, may be selected based at least in part upon visual analysis of the fluids' flow through a mini-reservoir device.
    Type: Application
    Filed: April 4, 2014
    Publication date: May 5, 2016
    Inventors: Kai HE, Liang XU
  • Publication number: 20160083639
    Abstract: Systems and methods for creating and/or using multi-functional surfactant complexes that may enhance surfactant treatments in subterranean formations are provided. In some embodiments, the methods comprise: providing a treatment fluid comprising an aqueous base fluid and one or more multi-functional surfactant complexes that comprise at least one surfactant and at least one polymeric additive, wherein the surfactant and the polymeric additive carry opposite charges; and introducing the treatment fluid into a well bore at a well site penetrating at least a portion of a subterranean formation.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Liang Xu, Jayant Rane, Kai He
  • Publication number: 20120194682
    Abstract: A method and a system are disclosed for implementing video monitoring by a mobile terminal. The method includes a mobile client sending a request for on-demand of a monitoring front end to a media transcoding device directly or through a mobile stream media relay, the media transcoding device receiving said request, then requesting a media code stream of said monitoring front end from a fixed network stream media server, and transcoding and outputting the received media code stream, wherein the media transcoding device presets video transcoding parameters corresponding to various mobile network standards, thereby implementing video monitoring of mobile terminals of various standards.
    Type: Application
    Filed: December 24, 2009
    Publication date: August 2, 2012
    Applicant: ZTE CORPORATION
    Inventors: Dongfeng Huo, Changhui Hu, Dan Xiao, Kai He