Cationic silicone surfactants and method of preparing same

    公开(公告)号:US11965127B2

    公开(公告)日:2024-04-23

    申请号:US17789184

    申请日:2020-12-22

    IPC分类号: C11D1/62 C09K23/38 C09K23/54

    CPC分类号: C09K23/54 C09K23/38

    摘要: A cationic surfactant is disclosed. The cationic surfactant has the general formula [Z-D-N(-D1-NR13+)a(R)2-a][X−]a where Z is a siloxane moiety or an unsubstituted hydrocarbyl moiety having from 5 to 20 carbon atoms, D is a covalent bond or a divalent linking group, D1 is a divalent linking group, R is H or an unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, each R1 is an independently selected unsubstituted hydrocarbyl group having from 1 to 4 carbon atoms, subscript a is 1 or 2, and each X is an anion. A method of preparing the cationic surfactant is also disclosed.

    COATING PROCESS
    7.
    发明公开
    COATING PROCESS 审中-公开

    公开(公告)号:US20230381811A1

    公开(公告)日:2023-11-30

    申请号:US18365022

    申请日:2023-08-03

    摘要: A process for coating a product by ion exchange including: a) providing a product that contains a surface segregating species (SSS) having a low surface energy component and an ionic component wherein the SSS has segregated to an outer surface of the product to form an activated surface; and b) treating the activated surface of the product with a liquid containing a surface modifying agent comprising one or more polyionic species, wherein the polyionic species is attracted to and deposits on the activated surface through a process of ion exchange.

    Methods and compositions for enhancing integrity and thermal conductivity of wellbores in geothermal operations

    公开(公告)号:US11976236B2

    公开(公告)日:2024-05-07

    申请号:US17584615

    申请日:2022-01-26

    IPC分类号: C09K8/05 C09K23/38 C09K23/54

    CPC分类号: C09K8/05 C09K23/38 C09K23/54

    摘要: Methods and compositions for enhancing wellbores and propped fractures for use in geothermal operations are provided. In some embodiments, the methods comprise: drilling with a drilling composition at least a portion of a first wellbore, wherein the drilling composition comprises a base fluid, a resin, and a thermally conductive filler; introducing a fracturing fluid into the first wellbore at a first pressure sufficient to create at least a first set of fractures extending from and in fluid communication with the first wellbore; and introducing a first plurality of proppant particulates into at least the first set of fractures, wherein a second wellbore penetrates at least a second portion of the subterranean formation, and wherein a second set of fractures extends from and is in fluid communication with the second wellbore into the subterranean formation, and the first set of fractures is in fluid communication with the second set of fractures.

    METHODS AND COMPOSITIONS FOR ENHANCING INTEGRITY AND THERMAL CONDUCTIVITY OF WELLBORES IN GEOTHERMAL OPERATIONS

    公开(公告)号:US20230235208A1

    公开(公告)日:2023-07-27

    申请号:US17584615

    申请日:2022-01-26

    IPC分类号: C09K8/05 C09K23/38 C09K23/54

    CPC分类号: C09K8/05 C09K23/38 C09K23/54

    摘要: Methods and compositions for enhancing wellbores and propped fractures for use in geothermal operations are provided. In some embodiments, the methods comprise: drilling with a drilling composition at least a portion of a first wellbore, wherein the drilling composition comprises a base fluid, a resin, and a thermally conductive filler; introducing a fracturing fluid into the first wellbore at a first pressure sufficient to create at least a first set of fractures extending from and in fluid communication with the first wellbore; and introducing a first plurality of proppant particulates into at least the first set of fractures, wherein a second wellbore penetrates at least a second portion of the subterranean formation, and wherein a second set of fractures extends from and is in fluid communication with the second wellbore into the subterranean formation, and the first set of fractures is in fluid communication with the second set of fractures.