CEMENTING COMPOSITIONS AND APPLICATION THEREOF TO CEMENTING OIL WELLS OR THE LIKE

摘要

The invention relates to cementing compositions which are particularly suitable for squeeze cementing operations, comprising an aqueous phase, a micro-cement, and an aqueous suspension comprising a vinyl acetate type polymer obtained by chemically cross-linking a polyvinyl compound, a nanolatex and an anionic surfactant with a cloud poi nt of more than 80 .degree.C.