Wellbore Cement Compositions and Wellbore Cementing Methods
    1.
    发明申请
    Wellbore Cement Compositions and Wellbore Cementing Methods 有权
    井筒水泥组合物和井筒水泥方法

    公开(公告)号:US20150129217A1

    公开(公告)日:2015-05-14

    申请号:US14077554

    申请日:2013-11-12

    IPC分类号: C09K8/46 E21B33/138 C04B24/06

    摘要: A wellbore cement composition includes substantially unhydrated cement powder and additive powder for cement. The additive powder is formulated from ingredients including a liquid additive for cement and solid carrier particles. The liquid additive is absorbed by the solid carrier particles. A wellbore cementing method includes using a dry cement composition, adding water to the dry cement composition, forming a cement slurry, placing the slurry in a wellbore, and setting the placed slurry. The dry cement composition contains substantially unhydrated cement powder and retarder powder for cement. The retarder powder contains a retarder absorbed by solid carrier particles.

    摘要翻译: 井筒水泥组合物包括基本上未水合的水泥粉末和用于水泥的添加剂粉末。 添加剂粉末由包括用于水泥和固体载体颗粒的液体添加剂的成分配制。 液体添加剂被固体载体颗粒吸收。 井眼固井方法包括使用干燥的水泥组合物,向干燥的水泥组合物中加入水,形成水泥浆,将浆料置于井眼中,并将所沉积的浆料进行固化。 干燥的水泥组合物含有基本上未水合的水泥粉末和用于水泥的缓凝剂粉末。 缓凝剂粉末含有被固体载体颗粒吸收的缓凝剂。