Method for stabilizing CO
    5.
    发明授权

    公开(公告)号:US12031088B2

    公开(公告)日:2024-07-09

    申请号:US18180878

    申请日:2023-03-09

    IPC分类号: C09K8/594

    CPC分类号: C09K8/594 C09K2208/10

    摘要: A method for enhancing geological storage by injecting nanoparticles to stabilize CO2 microbubbles, which belongs to the technical field of multiphase flow. The method first improves the physical properties of the fluid by pre-mixing CO2 and nanoparticles, and then the fluid is transported to the underground through high-pressure pipelines, and then CO2 microbubbles containing nanoparticles are generated through a dense perforated plate arranged by an injection well to improve the dissolution rate and sweep efficiency of the gas in the saline aquifer, so as to enhance the later mixing of the fluid. The combined injection can improve CO2 storage capacity and storage safety, and further reduce the risk of gas leakage in the reservoir.

    JANUS CARBON NANOFLUIDS FROM WASTE PLASTICS AS SUSTAINABLE NANO-AGENTS FOR ENHANCED OIL RECOVERY

    公开(公告)号:US20240166939A1

    公开(公告)日:2024-05-23

    申请号:US18056993

    申请日:2022-11-18

    IPC分类号: C09K8/588

    CPC分类号: C09K8/588 C09K2208/10

    摘要: A composition includes Janus carbon nanoparticles dispersed in an aqueous-based oil recovery fluid, wherein each of the carbon nanoparticles includes a hydrophobic surface and a hydrophilic surface. A method of preparing an enhanced oil recovery fluid including carbonizing waste plastic material to provide carbon microparticle, functionalizing the carbon microparticles such that the carbon microparticles comprise a hydrophilic surface functionality, grinding the carbon microparticles to provide Janus carbon nanoparticles, wherein the Janus carbon nanoparticles comprise a hydrophilic surface and a hydrophobic surface, and mixing the Janus carbon nanoparticles with an aqueous-based fluid to provide the enhanced oil recovery fluid.