Patents by Inventor Chenghua Han

Chenghua Han 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: 20220255123
    Abstract: The present application provides a secondary battery and an apparatus containing the same. The secondary battery includes: a negative electrode plate including a negative electrode current collector and a negative electrode film disposed on at least one surface of the negative electrode current collector, the negative electrode film including a negative active material; and an electrolyte including an electrolyte salt, an organic solvent, and an additive; wherein the negative active material includes a silicon-based material; the additive includes an additive A and an additive B; the additive A is selected from one or more of the compounds shown in Formula 1; the additive B is selected from one or more in the compound shown in Formula 2; the additive B has melting point of below or equal to 5° C.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Applicant: Contemporary Amperex Technology Co., Limited
    Inventors: Changlong HAN, Zeli WU, Chenghua FU
  • Publication number: 20220090479
    Abstract: A method and apparatus for acidizing and perforating simultaneously.
    Type: Application
    Filed: January 14, 2020
    Publication date: March 24, 2022
    Applicant: Hunting Titan, Inc.
    Inventors: Chenghua Han, Ryan Rowell, Scott Thiessen, Joseph Hitt
  • Publication number: 20210164331
    Abstract: A modular initiator assembly comprising a receptacle and connector combination adapted to shunt the electrical contacts of the initiator as a default condition and to only unshunt the electrical contacts coupled to the initiator when the receptacle and connector establish a fully seated connection.
    Type: Application
    Filed: August 7, 2018
    Publication date: June 3, 2021
    Applicant: Hunting Titan, Inc.
    Inventors: Christopher Brian Sokolove, Chenghua Han, Faraidoon Pundole, Jason Hoang Mai
  • Patent number: 8685187
    Abstract: Disclosed are thermite charges for use in well perforation and downhole fracing. The thermite charges have a core, and optionally a case, where at least one of the core and the case includes thermite material.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: April 1, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Hongfa Huang
  • Publication number: 20110146519
    Abstract: Disclosed are thermite charges for use in well perforation and downhole fracing. The thermite charges have a core, and optionally a case, where at least one of the core and the case includes thermite material.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 23, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Chenghua Han, Hongfa Huang
  • Patent number: 7942098
    Abstract: A loading tube for use in a perforating gun is disclosed which eliminates the necessity for utilization of plastic jackets to restrain shaped charges. The loading tube comprises a first tubular member and an engagement structure in the first tubular member in which the primer ends of the shaped charges may be installed. These engagement structures may be a center plate or inner tubular members. In each of the disclosed embodiments, a detonating cord connects the primer ends of the shaped charges which are installed in the loading tube.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: May 17, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Bennie Gill, Mark C. Duhon
  • Patent number: 7673566
    Abstract: An apparatus for use in a wellbore comprises a heat insulating container having an inner space and having a structure defining a hollow containing a vacuum. The apparatus further comprises a reflective layer arranged on a surface of the heat insulating container to reflect heat for reducing radiated heat originated in the wellbore from reaching the inner space. Also, a signal-activated detonator is provided in the inner space of the heat insulating container.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: March 9, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Mark C. Duhon
  • Publication number: 20090090263
    Abstract: An apparatus for use in a wellbore comprises a heat insulating container having an inner space and having a structure defining a hollow containing a vacuum. The apparatus further comprises a reflective layer arranged on a surface of the heat insulating container to reflect heat for reducing radiated heat originated in the wellbore from reaching the inner space. Also, a signal-activated detonator is provided in the inner space of the heat insulating container.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 9, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Chenghua Han, Mark C. Duhon
  • Patent number: 7481166
    Abstract: An apparatus for use in a wellbore comprises a heat insulating container having an inner space and having a structure defining a hollow containing a vacuum. The apparatus further comprises a reflective layer arranged on a surface of the heat insulating container to reflect heat for reducing radiated heat originated in the wellbore from reaching the inner space. Also, a signal-activated detonator is provided in the inner space of the heat insulating container.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: January 27, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Mark C. Duhon
  • Patent number: 7409993
    Abstract: A weight spacer apparatus has a carrier which is tubular in shape and a spacer tube which is also tubular in shape for insertion into the carrier. The weight spacer apparatus also has a plurality of weight bars which may be inserted into the spacer tube after the spacer tube is inserted into the carrier and which are also removable from the spacer tube. In one embodiment, a weight tray is inserted into the spacer tube for receiving the weight bars, and the weight tray may be fabricated from half-round tubing with a welded plate to cover the diametric opening. In another embodiment, a center plate is attached inside the spacer tube along the length of the spacer tube to divide the spacer tube into first and second compartments.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: August 12, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Bennie Gill, Mark C. Duhon, Robert Ferrence, Jerry D. Campbell, Jr., Ronald Lutz
  • Publication number: 20080121095
    Abstract: A loading tube for use in a perforating gun is disclosed which eliminates the necessity for utilization of plastic jackets to restrain shaped charges. The loading tube comprises a first tubular member and an engagement structure in the first tubular member in which the primer ends of the shaped charges may be installed. These engagement structures may be a center plate or inner tubular members. In each of the disclosed embodiments, a detonating cord connects the primer ends of the shaped charges which are installed in the loading tube.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 29, 2008
    Applicant: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Bennie Gill, Mark C. Duhon
  • Publication number: 20080053298
    Abstract: Weight spacer apparatus is disclosed which comprises a carrier which is tubular in shape and a spacer tube which is also tubular in shape for insertion into the carrier. The weight spacer apparatus according to the present invention further comprises a plurality of weight bars which may be inserted into the spacer tube after the spacer tube is inserted into the carrier and which are also removable from the spacer tube. In one embodiment, a weight tray is inserted into the spacer tube for receiving the weight bars, and the weight tray may be fabricated from half-round tubing with a welded plate to cover the diametric opening. In another embodiment, a center plate is attached inside the spacer tube along the length of the spacer tube to divide the spacer tube into first and second compartments. The first compartment comprises a weight tray for receiving the plurality of weight bars, and the portion of the spacer tube opposite the first compartment has openings formed in it to receive shaped charges.
    Type: Application
    Filed: November 20, 2006
    Publication date: March 6, 2008
    Applicant: Schlumberger Technology Corporation
    Inventors: Chenghua Han, Bennie Gill, Mark C. Duhon, Robert Ference, Jerry D. Campbell, Ronald Lutz
  • Publication number: 20070234921
    Abstract: An apparatus for use in a wellbore comprises a heat insulating container having an inner space and having a structure defining a hollow containing a vacuum. The apparatus further comprises a reflective layer arranged on a surface of the heat insulating container to reflect heat for reducing radiated heat originated in the wellbore from reaching the inner space. Also, a signal-activated detonator is provided in the inner space of the heat insulating container.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 11, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Chenghua Han, Mark Duhon