Patents by Inventor Xiao Jinjiang

Xiao Jinjiang 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: 8727016
    Abstract: Embodiments of the present invention relate to an apparatus and methods for enhanced well control in slim completions. An embodiment can include an electrical submersible pump (“ESP”) positioned within a casing and having at least a portion thereof extending outwardly from a production tubing positioned within the casing. The production tubing terminates adjacent a distal end portion of a pump discharge to thereby provide greater interstitial space between outer surfaces of the portion of the pump disposed to extend outwardly from the production tubing and inner walls of the casing. This increased interstitial space, for example, can assist in cost savings by reducing the rate of erosion damage to the ESP. Embodiments of the present invention can further include a valve connected to inner walls of the casing and positioned distal from the ESP to control the flow of hydrocarbons.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: May 20, 2014
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohamed Nabil Noui-Mehidi, Xiao Jinjiang