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    Methods for reducing condensation
    32.
    发明授权
    Methods for reducing condensation 有权

    公开(公告)号：US12188074B2

    公开(公告)日：2025-01-07

    申请号：US17030914

    申请日：2020-09-24

    Applicant: Saudi Arabian Oil Company

    Inventor： Wei Wang ,  Hooisweng Ow ,  Sehoon Chang

    IPC: C12P7/16 ,  B82Y40/00 ,  C01B33/12 ,  C01C1/08 ,  C08G61/12 ,  C09K8/524 ,  C09K8/84 ,  C09K8/86 ,  E21B43/241

    Abstract: A method for reducing condensate in a subsurface formation is disclosed. The method includes introducing a reactive mixture including an aqueous solution, urea, dopamine, a silica nanoparticle precursor, a silane grafting compound, and an alcohol compound into the subsurface formation. The method also includes allowing generation of ammonia through thermal decomposition of the urea and allowing the silica nanoparticle precursor to hydrolyze, thereby forming silica nanoparticles. The method further includes allowing the silane grafting compound to graft onto the silica nanoparticles, thereby forming functionalized silica nanoparticles. The method also includes allowing polymerization of the dopamine, thereby forming polydopamine. The method also includes allowing the functionalized silica nanoparticles to attach to the subsurface formation via the polydopamine, thereby reducing condensate in the subsurface formation.

    Tracer analysis
    33.
    发明授权
    Tracer analysis 有权

    公开(公告)号：US12140578B2

    公开(公告)日：2024-11-12

    申请号：US18079644

    申请日：2022-12-12

    Applicant: Saudi Arabian Oil Company

    Inventor： Hooisweng Ow ,  Gawain Thomas ,  Sehoon Chang ,  Wei Wang

    IPC: G01N30/74 ,  G01N21/64 ,  G01N33/18 ,  G01N30/02

    Abstract: Systems and methods for analyzing groundwater samples with multiple organic tracer species from a petroleum containing reservoir include obtaining the sample, isolating an aqueous fraction of the groundwater sample, separating the aqueous fraction into a plurality of components, where each component corresponds to a different one of the organic tracer species, combining each of the separated components with at least one lanthanide element to form a plurality of component solutions, where a ratio of the at least one lanthanide element to the separated component in each component solution is 5:1 or greater, and analyzing each component solution to determine a relative amount of each organic tracer species in the groundwater sample.

    OIL, GAS AND WATER WELL TRACERS WITH TUNABLE RELEASE PROFILE
    34.
    发明公开
    OIL, GAS AND WATER WELL TRACERS WITH TUNABLE RELEASE PROFILE 审中-公开

    公开(公告)号：US20240318545A1

    公开(公告)日：2024-09-26

    申请号：US18680320

    申请日：2024-05-31

    Applicant: SAUDI ARABIAN OIL COMPANY

    Inventor： Rajesh Kumar Saini ,  Amy J. Cairns ,  Shitong Sherry Zhu ,  Ayrat Gizzatov ,  Wei Wang ,  Mohammed Sayed ,  Hooisweng Ow

    IPC: E21B47/11 ,  E21B43/26

    CPC classification number: E21B47/11 ,  E21B43/26

    Abstract: A method includes introducing a fluoro-based small molecule tracer into a stimulation fluid, injecting the stimulation fluid into a target zone of a subterranean formation, and maintaining the fluoro-based small molecule tracer inside the target zone of the subterranean formation for an amount of time. While being maintained inside the target zone, the fluoro-based small molecule tracer comes into contact with water at a downhole temperature resulting in hydrolysis of the fluoro-based small molecule tracer to produce a fluorinated tracer and a nonfluorinated group. Then, produced fluid that includes the fluorinated tracer is recovered, a concentration of the fluorinated tracer in the hydrocarbons is determined, and the concentration of the fluorinated tracer is correlated to a productivity of the target zone of the subterranean formation.

    METHOD OF MANIPULATING HYDROPHILICITY AND HYDROPHOBICITY OF CONVENTIONAL DYE MOLECULES FOR TRACER APPLICATIONS
    35.
    发明公开
    METHOD OF MANIPULATING HYDROPHILICITY AND HYDROPHOBICITY OF CONVENTIONAL DYE MOLECULES FOR TRACER APPLICATIONS 审中-公开

    公开(公告)号：US20240270970A1

    公开(公告)日：2024-08-15

    申请号：US18632990

    申请日：2024-04-11

    Applicant: Saudi Arabian Oil Company

    Inventor： Wei Wang

    IPC: C09B11/24 ,  G01N21/64 ,  G01N33/24

    CPC classification number: C09B11/24 ,  G01N21/64 ,  G01N33/24 ,  Y10T436/13

    Abstract: Functionalized fluorescent tracers, methods of making the tracers, and methods of using the tracers are provided. In some implementations, the fluorescent tracers include a functionalized fluorescent dye. The functionalized fluorescent dye includes an isothiocyanate-containing dye functionalized with a functional group that includes a primary amine. In some implementations, a method of tracing fluid flow in a subterranean formation includes mixing the functionalized fluorescent tracer into a fluid, flowing the tracer fluid into a subterranean formation, recovering a sample from a subterranean formation, and analyzing the sample for a fluorescent signal and a barcode functional group.

    Microfluidic chip with mixed porosities for reservoir modeling
    39.
    发明授权
    Microfluidic chip with mixed porosities for reservoir modeling 有权

    公开(公告)号：US11534759B2

    公开(公告)日：2022-12-27

    申请号：US17155619

    申请日：2021-01-22

    Applicant: Saudi Arabian Oil Company

    Inventor： Wei Wang ,  Sehoon Chang ,  Martin E. Poitzsch

    IPC: B01L3/00

    Abstract: Spherical grains and sacrificial particles are mixed in a suspension. The sacrificial particles are larger than the spherical grains. The suspension is injected into a channel in a microfluidic chip, and the spherical grains form microporous structures in the channel. The microporous structures are sintered in the channel. A solvent is injected into the channel, and the solvent dissolves the sacrificial particles and forms macropores between at least some of the microporous structures, thereby forming a mixed-porosity microfluidic chip.

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