Well screens and methods to reduce screen plugging

    公开(公告)号:US10196881B2

    公开(公告)日:2019-02-05

    申请号:US15410921

    申请日:2017-01-20

    Abstract: A subterranean screen assembly comprises a base pipe with end connections to attach to a pipe string and a portion that is perforated or slotted; and a coated screen radially outwardly disposed of the base pipe. The coated screen comprises a screen substrate and a coating disposed on a surface of the screen substrate; the coating comprising an amorphous diamond like carbon doped with about 10 to about 30 atomic percent of silicon, about 10 to about 20 atomic percent of oxygen, or a combination comprising at least one of the foregoing dopants, or a polymer comprising a fluoropolymer, a silicone, or a combination comprising at least one of the foregoing.

    HYDROPHOBIC AND OLEOPHOBIC COATINGS
    29.
    发明申请
    HYDROPHOBIC AND OLEOPHOBIC COATINGS 有权
    疏水性和渗透性涂料

    公开(公告)号:US20150147523A1

    公开(公告)日:2015-05-28

    申请号:US14090047

    申请日:2013-11-26

    Abstract: A hydrophobic surface comprises a surface texture and a coating disposed on the surface texture, wherein the coating comprises an amorphous diamond like carbon material doped with 10 to 35 atomic percent of Si, O, F, or a combination comprising at least one of the foregoing, or a low surface energy material selected from fluoropolymer, silicone, ceramic, fluoropolymer composite, or a combination comprising at least one of the foregoing; and wherein the surface texture comprises a micro texture, a micro-nano texture, or a combination of a micro texture and a micro-nano texture.

    Abstract translation: 疏水表面包括表面纹理和设置在表面纹理上的涂层,其中涂层包括掺杂有10至35原子%的Si,O,F或包含至少一种前述物质的组合的无定形金刚石状碳材料 或选自氟聚合物,硅氧烷,陶瓷,含氟聚合物复合材料或包含至少一种前述物质的组合的低表面能材料; 并且其中所述表面纹理包括微纹理,微纳米纹理或微纹理和微纳米纹理的组合。

    PROTECTIVE COATING FOR A SUBSTRATE
    30.
    发明申请
    PROTECTIVE COATING FOR A SUBSTRATE 有权
    基材保护涂层

    公开(公告)号:US20150096743A1

    公开(公告)日:2015-04-09

    申请号:US14047695

    申请日:2013-10-07

    Abstract: A coating having a gradient composite structure, applied to a substrate, which may be a disposable tool. The gradient composite comprises a bonding component and an erosion and/or corrosion resistant component. When applied to a disposable tool, such as a ball and seat assembly in a downhole environment, the coating enhances the performance of disintegrable materials used in such tools. The coating may be configured to expire at the end of a selected duration, allowing the underlying material to disintegrate.

    Abstract translation: 具有梯度复合结构的涂层,其施加到基底,其可以是一次性工具。 梯度复合材料包括粘合组分和耐腐蚀和/或耐腐蚀组分。 当在井下环境中应用于诸如球和座椅组件的一次性工具时,涂层增强了在这些工具中使用的可崩解材料的性能。 涂层可以被配置为在所选择的持续时间结束时期满,允许下层材料分解。

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