Cement retarder
    1.
    发明授权
    Cement retarder 有权
    水泥缓凝剂

    公开(公告)号:US07896964B2

    公开(公告)日:2011-03-01

    申请号:US11965319

    申请日:2007-12-27

    IPC分类号: C04B24/04

    CPC分类号: C04B22/02 C04B24/04 C09K8/467

    摘要: The invention provides a cementitious composition for oilfield application comprising an organic retarder having at least one carboxylate group and copper ions such that a complex is made between copper ion and carboxylate group. Also a method to retard cementitious composition for oilfield application is disclosed, the method comprising the unique double step of adding an organic retarder having at least one carboxylate group and adding copper ions such that a complex is made between copper ion and carboxylate group.

    摘要翻译: 本发明提供一种用于油田施用的水泥组合物,其包含具有至少一个羧酸盐基团和铜离子的有机延迟剂,使得在铜离子和羧酸盐基团之间形成络合物。 还公开了一种延缓油田施用的胶结组合物的方法,该方法包括添加具有至少一个羧酸酯基的有机延迟剂并加入铜离子以使得在铜离子和羧酸酯基之间形成络合物的独特的双重步骤。

    Cement Retarder
    3.
    发明申请
    Cement Retarder 有权
    水泥减速机

    公开(公告)号:US20080156231A1

    公开(公告)日:2008-07-03

    申请号:US11965319

    申请日:2007-12-27

    IPC分类号: C04B14/48 C04B24/00 C04B7/00

    CPC分类号: C04B22/02 C04B24/04 C09K8/467

    摘要: The invention provides a cementitious composition for oilfield application comprising an organic retarder having at least one carboxylate group and copper ions such that a complex is made between copper ion and carboxylate group. Also a method to retard cementitious composition for oilfield application is disclosed, the method comprising the unique double step of adding an organic retarder having at least one carboxylate group and adding copper ions such that a complex is made between copper ion and carboxylate group.

    摘要翻译: 本发明提供一种用于油田施用的水泥组合物,其包含具有至少一个羧酸盐基团和铜离子的有机延迟剂,使得在铜离子和羧酸盐基团之间形成络合物。 还公开了一种延缓油田施用的胶结组合物的方法,该方法包括添加具有至少一个羧酸酯基的有机延迟剂并加入铜离子以使得在铜离子和羧酸酯基之间形成络合物的独特的双重步骤。