Patents by Inventor Sitao Zhu

Sitao Zhu 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).

  • Coal bump control method for sectional hydraulic fracturing regions of near vertical ultra thick coal seam
    Patent number: 11976557
    Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: May 7, 2024
    Assignees: University of Science and Technology Beijing, North China Institute of Science and Technology, Beijing Anke Xingye Science and Technology Co., Ltd.
    Inventors: Sitao Zhu, Gaoang Wang, Fuxing Jiang, Gang Yao, Tao Zhou, Jinhai Liu, Huan Li, Zhen Kong, Qingbo He, Xiaocheng Qu, Quande Wei, Yitong Huang, Shaohua Sun
  • COAL BUMP CONTROL METHOD FOR SECTIONAL HYDRAULIC FRACTURING REGIONS OF NEAR VERTICAL ULTRA THICK COAL SEAM
    Publication number: 20230160305
    Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.
    Type: Application
    Filed: August 18, 2022
    Publication date: May 25, 2023
    Applicants: University of Science and Technology Beijing, North China Institute of Science and Technology, Beijing Anke Xingye Science and Technology Co., Ltd.
    Inventors: Sitao ZHU, Gaoang WANG, Fuxing JIANG, Gang YAO, Tao ZHOU, Jinhai LIU, Huan LI, Zhen KONG, Qingbo HE, Xiaocheng QU, Quande WEI, Yitong HUANG, Shaohua SUN
  • METHOD FOR MONITORING HYDRAULIC FRACTURING RANGE OF SURFACE VERTICAL SHAFT
    Publication number: 20230140874
    Abstract: A method for monitoring hydraulic fracturing range of a surface vertical shaft is provided by the present disclosure, belonging to the technical field of ultrahigh-pressure hydraulic fracturing monitoring of the coal mine vertical shafts.
    Type: Application
    Filed: August 31, 2022
    Publication date: May 11, 2023
    Inventors: Sitao Zhu, Xiaoguang Shang, Xiufeng Zhang, Longkai Hao, Chao Wang, Huadong Xie, Gang Yao, Shidong Li, Tao Zhou, Jinhai Liu, Xuyou Wang, Yitong Huang, Jiajie Li, Quande Wei