泡沫水泥的优点在于减小水泥浆的密度。
The advantage of foamed cement is the decreased slurry density.
页岩气固井主要采用泡沫水泥固井技术，完井方式以套管固井后射孔完井为主。
Foam cementing is commonly used for cementing in a shale gas well, while perforation after casing set is often for well completion.
为此，研制开发了密度低、强度大且防窜性能好的新型泡沫水泥浆体系，并对其性能进行了试验研究。
In order to solve the problems, a novel foam cement slurry system with low density, high strength and good channeling resistance, has been developed and tested.
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