Based on the study of cement slurrysetting property, a test instrument has been developed for in-house evaluating the anti-gas channeling ability of slurry under the simulated downhole conditions.
通过对固井水泥浆凝固特性的研究，研制出了可模拟井下条件的室内“水泥浆防气窜能力评价仪”。
2
The several conventional cementing technologies for deep sea abroad were reviewed which included rapid setting gypsum slurry, PSD slurry, high alumina slurry, aerated slurry and so on.
Gradient multi-setting cement slurry system can take the place of double stage cementing in long isolation sections in certain degree, and it displaces many advantages.