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    ALGINATES FOR CORROSION AND SCALE CONTROL
    2.
    发明申请
    ALGINATES FOR CORROSION AND SCALE CONTROL 有权

    公开(公告)号：US20220033704A1

    公开(公告)日：2022-02-03

    申请号：US17380502

    申请日：2021-07-20

    Applicant: Chevron U.S.A. Inc.

    Inventor： Mark Charlesworth ,  Christopher John Kalli ,  Jon Even Vale ,  Brendan Francis Graham ,  Eric Freemantle May

    IPC: C09K8/528 ,  C08B37/00 ,  C08L5/04

    Abstract: Provided herein are methods for inhibiting the formation of scale on equipment in contact with a produced fluid containing a scale-forming divalent cation. Such methods can comprise adding an activated alginate to the produced fluid in an amount effective to react with the divalent cation in the produced fluid to form an activated alginate complex; and separating the activated alginate complex from the produced fluid. Methods can further comprise recycling the activated alginate from the activated alginate complex by dissolving the activated alginate complex. The activated alginate can be prepared by thermally modifying an alginate precursor at a temperature of from 80° C. to 180° C. for a period of at least 24 hours. The activated alginate can be in the form of a solution including 0.1% to 10% by weight activated alginate, based on the total weight of the solution. The activated alginate can exhibit increased solubility in water and kinetics of complexation with the divalent cation compared to the alginate precursor.

    HYDROSTATIC STORAGE OF PRODUCED WATER
    5.
    发明申请
    HYDROSTATIC STORAGE OF PRODUCED WATER 审中-公开
    生产水的水化储存

    公开(公告)号：US20160319652A1

    公开(公告)日：2016-11-03

    申请号：US15141924

    申请日：2016-04-29

    Applicant: Chevron U.S.A. Inc.

    Inventor： Christopher John Kalli ,  Russell Evan Cooper

    IPC: E21B43/36 ,  C02F1/02 ,  C02F1/00 ,  C02F1/40

    CPC classification number: E21B43/36 ,  B01D21/00 ,  B01D21/10 ,  B01D21/30 ,  B01D2221/04 ,  C02F1/004 ,  C02F1/02 ,  C02F1/40 ,  C02F2001/007 ,  C02F2101/32 ,  C02F2103/10 ,  C02F2303/08

    Abstract: A subsea storage unit (SSU) with a flexible bag (flexible bladder or expandable skin) is used for produced water storage. The use of the SSU allows the solids to settle out in the storage vessel that would otherwise have settled out and accumulated on underwater surfaces, removal of hydrocarbons and the smoothing out of variations in water quality resulting from process upsets. Solids that remain in suspension and exit the SSU will then disperse without any appreciable settlement to be completely dispersed. Accumulated solids can be retrieved with the expandable skin, which can then be replaced for continued service.

    Abstract translation: 使用具有柔性袋（柔性气囊或可膨胀表皮）的海底存储单元（SSU）用于生产的储水。 使用SSU可以使固体沉淀在存储容器中，否则这些固体将会沉淀出来并积聚在水下表面，去除碳氢化合物，并平滑出水处理过程中的水质变化。 仍然悬浮和离开SSU的固体将分散，没有明显的沉降物完全分散。 累积的固体可以用可膨胀的皮肤检索，然后可以更换以继续使用。

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