It can reduce cement slurry filtration, provide a channeling-preventing effect and mitigate corrosion of formation fluids on cement ring.
另一方面使水泥浆具有防窜性，减轻了地层流体对水泥环的侵蚀。
The silica slurry filtration, washing, get silica and ammonium fluoride solution, ointment, ointment of silica was washed, dried silica products;
将白炭黑料浆过滤、洗涤，得到白炭黑软膏和氟化铵溶液，白炭黑软膏经洗涤、干燥得到白炭黑产品；
Regressing and fitting the experimental datum, the aim is to establish an empirical mathematical model for filtration rate of phosphoric acid slurry.
对实验数据进行回归拟合，建立了磷酸料浆过滤速度的经验数学模型。
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