Patents by Inventor Qiunan LV

Qiunan LV 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).

  • Method and system for recovering gas in natural gas hydrate exploitation
    Patent number: 10683736
    Abstract: A method for recovering gas in natural gas hydrate exploitation is disclosed, in which a gas-water mixture at a bottom of a exploitation well is delivered to an ocean surface platform through a marine riser, by adopting the gas-lift effect of methane gas derived from the dissociation of natural gas hydrate, so as to achieve a controllable flowing production of marine natural gas hydrate. In the startup stage, the pressure in the bottom of the well is decreased by the gas-lift effect of the injected gas to allow dissociation of the hydrate. In the flowing production stage, the flowing production is achieved by the gas-lift effect of the gas derived from the dissociation of the natural gas hydrate, wherein a seafloor gas tank is employed to control the flowing rate and replenish the consumed gas.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: June 16, 2020
    Assignee: GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES
    Inventors: Zhaoyang Chen, Xiaosen Li, Jinming Zhang, Yu Zhang, Gang Li, Qiunan Lv, Yi Wang, Kefeng Yan
  • Method and System for Recovering Gas in Natural Gas Hydrate Exploitation
    Publication number: 20190211656
    Abstract: A method for recovering gas in natural gas hydrate exploitation is disclosed, in which a gas-water mixture at a bottom of a exploitation well is delivered to an ocean surface platform through a marine riser, by adopting the gas-lift effect of methane gas derived from the dissociation of natural gas hydrate, so as to achieve a controllable flowing production of marine natural gas hydrate. In the startup stage, the pressure in the bottom of the well is decreased by the gas-lift effect of the injected gas to allow dissociation of the hydrate. In the flowing production stage, the flowing production is achieved by the gas-lift effect of the gas derived from the dissociation of the natural gas hydrate, wherein a seafloor gas tank is employed to control the flowing rate and replenish the consumed gas.
    Type: Application
    Filed: February 12, 2018
    Publication date: July 11, 2019
    Inventors: Zhaoyang CHEN, Xiaosen LI, Jinming ZHANG, Yu ZHANG, Gang LI, Qiunan LV, Yi WANG, Kefeng YAN