Patents by Inventor Yongquan XU

Yongquan 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).

  • Patent number: 11512555
    Abstract: The retrievable packer system includes a packer mandrel, a lock ring, an upper cone, a lower cone, a slip device, a retrieval mandrel, and a plurality of push rods. The lock ring is attached to the packer mandrel, followed by the upper cone, the slip device, the lower cone, and the retrieval mandrel. The lower cone has lower cone rod channels, and the push rods anchored on the retrieval mandrel slide through respective channels toward the upper cone. The packer system is run into the borehole with each rod in the first position relative to a tip end of the lower cone and the slip device in the run-in position. The packer system is set and can be locked at a location in the borehole. Each push rod can push the upper cone to return the slip device to the run-in position for retrieval of the packer system.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: November 29, 2022
    Assignee: CNPC USA Corporation
    Inventors: Perry Batson, Jeff Maynard, Kwami Roberts, Israel Torres, Jianpeng Yue, Shaogong Zhu, Meng Cai, Yongquan Xu
  • Publication number: 20220106855
    Abstract: The retrievable packer system includes a packer mandrel, a lock ring, an upper cone, a lower cone, a slip device, a retrieval mandrel, and a plurality of push rods. The lock ring is attached to the packer mandrel, followed by the upper cone, the slip device, the lower cone, and the retrieval mandrel. The lower cone has lower cone rod channels, and the push rods anchored on the retrieval mandrel slide through respective channels toward the upper cone. The packer system is run into the borehole with each rod in the first position relative to a tip end of the lower cone and the slip device in the run-in position. The packer system is set and can be locked at a location in the borehole. Each push rod can push the upper cone to return the slip device to the run-in position for retrieval of the packer system.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 7, 2022
    Inventors: Perry BATSON, Jeff MAYNARD, Kwami ROBERTS, Israel TORRES, Jianpeng YUE, Shaogong ZHU, Meng CAI, Yongquan XU