Terms of melting the permafrost when cementing of boreholes plugged with gas-liquid mixtures with hollow microspheres

摘要

In the paper, the theoretical investigations are presented to define heat conductivity of gas-liquid cement slurries and formed set cement, containing silica-alumina hollow microsphere. It has been established that increasing the content of the hollow microspheres and aeration of the cement slurry leads to heat conductivity reduction of the slurry and set cement.