Method of and additive for controlling fluid loss from a drilling fluid
    2.
    发明授权
    Method of and additive for controlling fluid loss from a drilling fluid 有权
    控制钻井液流失的方法和添加剂

    公开(公告)号:US6107256A

    公开(公告)日:2000-08-22

    申请号:US141681

    申请日:1998-08-27

    CPC分类号: C09K8/24

    摘要: This invention provides a composition for and a method of using the composition to reduce the loss of liquid from aqueous compositions employed while rotary drilling. The composition of this invention comprises a polymeric material selected from homopolymers, random copolymers and random terpolymers, each of which includes a vinylamide morpholine derivative in the recipe for making the polymeric material.

    摘要翻译: 本发明提供了组合物和使用该组合物以减少旋转钻井时所用水性组合物的液体损失的方法。 本发明的组合物包含选自均聚物,无规共聚物和无规三元共聚物的聚合物材料,其中每一种都包括用于制备聚合物材料的配方中的乙烯基酰胺吗啉衍生物。