Patent ID: 9394202
Filing Date: 2016-07-19
CPC Classification: C04B,C09K,Y02P

Claim Text:
1. A method for cementing a subterranean well having a borehole, comprising: (i) providing a cementing composition comprising: a. a geopolymer composition consisting of an aluminosilicate source, an activator and a carrier fluid; and b. a retarder that comprises at least one organic compound comprising at least one nitrogen atom such that the retarder retards a setting time, a thickening time, or both of the geopolymer composition; (ii) pumping the composition into the borehole; and (iii) allowing the composition to set and harden, wherein the activator is a carbonate salt, a metal silicate, a metal aluminate, sodium hydroxide or potassium hydroxide, wherein the geopolymer composition undergoes dissolution followed by polycondensation to form a poly(sialate) network, a poly(sialate-siloxo) network or a poly(sialate-disiloxo) network.