Patents by Inventor Mingzhao Huang

Mingzhao Huang 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).

  • Surface layer conductor running tool for deep-water well drilling
    Patent number: 9631450
    Abstract: The present invention relates to offshore oil and gas exploration drilling field and, in particular, to a surface layer conductor running tool for deep-water well drilling, which is used to run a conductor to a designated position, so that the drill stem can be released and the drilling can be continued. The surface layer conductor running tool for deep-water well drilling comprises a mandrel, an inner sleeve, an outer sleeve, and a main body, wherein the inner sleeve, the outer sleeve, and the main body are fitted over the mandrel sequentially; the inner sleeve can slide up and down but cannot rotate in relation to the mandrel, the outer sleeve and the inner sleeve are connected via a transmission thread pair, and the main body is situated on the inner sleeve; a retaining pawl penetrating the main body and radially slidable in horizontal direction; and an anti-rotation pin penetrating the main body and the outer sleeve, so that the outer sleeve can move up and down in the main body only, but cannot rotate.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 25, 2017
    Assignee: China University of Petroleum (East China)
    Inventors: Baojiang Sun, Ning Zhang, Hao Li, Yonghai Gao, Guomin Yan, Mingzhao Huang, Shuang Xu
  • SURFACE LAYER CONDUCTOR RUNNING TOOL FOR DEEP-WATER WELL DRILLING
    Publication number: 20170089161
    Abstract: The present invention relates to offshore oil and gas exploration drilling field and, in particular, to a surface layer conductor running tool for deep-water well drilling, which is used to run a conductor to a designated position, so that the drill stem can be released and the drilling can be continued. The surface layer conductor running tool for deep-water well drilling comprises a mandrel, an inner sleeve, an outer sleeve, and a main body, wherein the inner sleeve, the outer sleeve, and the main body are fitted over the mandrel sequentially; the inner sleeve can slide up and down but cannot rotate in relation to the mandrel, the outer sleeve and the inner sleeve are connected via a transmission thread pair, and the main body is situated on the inner sleeve; a retaining pawl penetrating the main body and radially slidable in horizontal direction; and an anti-rotation pin penetrating the main body and the outer sleeve, so that the outer sleeve can move up and down in the main body only, but cannot rotate.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 30, 2017
    Applicant: China University of Petroleum (East China)
    Inventors: Baojiang Sun, Ning Zhang, Hao Li, Yonghai Gao, Guomin Yan, Mingzhao Huang, Shuang Xu