Patents by Inventor Cheng Yuan Xu

Cheng Yuan Xu 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).

  • Cross-scale wide-spectrum particle size plugging formula granularity analysis method
    Patent number: 10782220
    Abstract: A cross-scale wide-spectrum particle size plugging formula granularity analysis method includes: performing a size classification on a plugging material of a plugging formula; obtaining a particle size distribution of the plugging material by performing procession on each particle plugging material via a laser granularity analysis method and an imaging granularity analysis method, according to difference sizes thereof; obtaining the particle size distribution of the plugging formula by a weighted summation way, according to a granularity interval and an addition of each particle plugging material.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: September 22, 2020
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Cheng Yuan Xu, Jing Yi Zhang, Yi Li Kang, Li Jun You, Xiao Peng Yan, Chao Jiang, He Xiang Zhou, Bin Yang, Chuan Liu