当多余的水泥浆被留在井筒中时，在水泥浆初凝和变成不可流动以前用常规的方法（如反循环）不可能去除这些多余的水泥浆。
When excess slurry is left in the wellbore, it may not be possible to remove the excess slurry by conventional means, such as reverse circulation, before the slurry thickens and becomes immovable.
常规的用于深水固井的水泥浆促凝剂多为无机盐类，给水泥浆带来大量的反应热，威胁到水合物层的稳定性。
Conventional accelerating agents for deepwater cementing are often inorganic salts, which bring a lot of reaction heat that threats the stability of the hydrate in deepwater.
对常规密度抗盐水泥浆的失水、稠化、流变、强度等性能进行了室内评价。
The properties of this slurry with conventional density, such as filtration, thickening, rheology and strength, were evaluated in laboratory.
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