Conversion of emulsion mud to cement
    6.
    发明授权
    Conversion of emulsion mud to cement 失效
    将乳液泥浆转化为水泥

    公开(公告)号:US5358049A

    公开(公告)日:1994-10-25

    申请号:US195896

    申请日:1994-02-14

    IPC分类号: C04B28/08 C09K8/26 E21B33/14

    摘要: A wellbore is drilled utilizing an oil-in-water emulsion drilling fluid, optionally containing blast furnace slag. A compatible cementitious slurry containing blast furnace slag and an activator system is then introduced into the borehole and displaced up into an annulus. Generally, the cementitious slurry is prepared by adding additional blast furnace slag and an activator such as a sodium hydroxide/sodium carbonate mixture to the used drilling fluid.

    摘要翻译: 利用水包油乳液钻井液钻孔,任选地包含高炉矿渣。 然后将含有高炉渣和活化剂体系的相容的水泥浆引入钻孔中并置于环空中。 通常,通过将另外的高炉矿渣和活化剂如氢氧化钠/碳酸钠混合物加入到所用的钻井液中来制备水泥浆。

    Dilution of drilling fluid in forming cement slurries
    8.
    发明授权
    Dilution of drilling fluid in forming cement slurries 失效
    钻井液在成型水泥浆中的稀释

    公开(公告)号:US5314022A

    公开(公告)日:1994-05-24

    申请号:US965142

    申请日:1992-10-22

    摘要: A drilling fluid is diluted and a cementitious component added thereto. In a more specific embodiment the dilution is carried out by introducing liquid such as water to a flowing stream of the drilling fluid and thereafter a cementitious component is mixed therewith. Thus, the drilling fluid can be used in a conventional manner to drill a well and thereafter diluted and a cementitious component added to produce a cement for cementing operations such as setting a casing in the well and/or can be used for remedial cementing.In another embodiment of the invention, the drilling fluid itself contains a small amount of cementitious component and additional cementitious component is added after the dilution.

    摘要翻译: 稀释钻井液,并向其中加入水泥组分。 在更具体的实施方案中,通过将诸如水的液体引入钻井液的流动流中进行稀释,然后将水泥组分与其混合。 因此,钻井液可以以常规方式用于钻井,然后稀释,并且加入水泥组分以生产用于固井操作的水泥,例如将井套设置在井中和/或可用于补救固井。 在本发明的另一个实施方案中,钻井液本身含有少量水泥组分,并且在稀释后加入另外的水泥组分。