Cement paste of low density for use in a hole of the well method to increase the viscosity of a cement of low density and method of cementing a well.

摘要

"Cement paste of low density for use in a hole of the well method to increase the viscosity of a cement of low density and method for cementing a well". This is a low density cement paste for use in a hole shaft, comprising a mixture of cement and a polymer expandable in an alkaline medium as an additive thickener.