Geopolymer cement compositions and methods of use
Methods of cementing include providing a geopolymer cement composition that includes a monophase amorphous hydraulic binder material (MAHBM), a metal silicate, an alkaline activator, and a carrier fluid, introducing the geopolymer cement composition into a subterranean formation, and allowing the geopolymer cement composition to set in the subterranean formation. The MAHBM includes silica or alumina core particulates coated with an amorphous calcium silicate hydrate.
1. A method of cementing, comprising:
providing a geopolymer cement composition comprising:
a monophase amorphous hydraulic binder material (MAHBM),
a metal silicate,
an alkaline activator, and
a carrier fluid,
wherein the MAHBM comprises core particulates coated with an amorphous calcium silicate hydrate, and the core particulates consist of calcium aluminate or sodium aluminate; and
introducing the geopolymer cement composition into a subterranean formation; and
allowing the geopolymer cement composition to set in the subterranean formation.
2. The method of claim 1 , wherein the MAHBM is present in an amount of about 5% to about 70% by weight of the geopolymer cement composition.
3. The method of claim 2 , wherein MAHBM is present in an amount of about 20% to about 45% by weight of the geopolymer cement composition.
4. The method of claim 1 , wherein the metal silicate comprises one or more of sodium silicate, sodium metasilicate, magnesium silicate, or potassium silicate, and the metal silicate is present in an amount of about 1% to about 80% by weight of the geopolymer cement composition.
5. The method of claim 1 , wherein the alkaline activator comprises one or more of a metal hydroxide, ammonium hydroxide, sodium bicarbonate, sodium carbonate, lime, caustic soda, Portland cement, or hydrated lime, and the alkaline activator is present in an amount of about 1% to about 40% by weight of the geopolymer cement composition.
6. The method of claim 1 , wherein the carrier fluid comprises one or more of freshwater, saltwater, brine, or seawater, and the carrier fluid is present in an amount of about 20% to about 95% by weight of the geopolymer cement composition.
7. The method of claim 1 , wherein the metal silicate comprises sodium silicate, the alkaline activator comprises a metal hydroxide, and the carrier fluid comprises water.
8. The method of claim 1 , wherein the geopolymer cement composition further comprises one or more of a fluid loss control additive, a set retarder, or a set accelerator.
9. The method of claim 8 , wherein the geopolymer cement composition further comprises the fluid loss control additive, and the fluid loss control additive is present in an amount of about 0.1% to about 5% by weight of the geopolymer cement composition.
10. The method of claim 8 , wherein the geopolymer cement composition further comprises the set retarder, and the set retarder is present in an amount of about 0.1% to about 5% by weight of the geopolymer cement composition.
11. The method of claim 1 , wherein introducing the geopolymer cement composition into the subterranean formation comprises introducing the geopolymer cement composition into a wellbore annulus.
12. A method of cementing, comprising:
providing a geopolymer cement composition comprising:
a monophase amorphous hydraulic binder material (MAHBM),
an aluminosilicate,
a metal silicate,
an alkaline activator, and
a carrier fluid,
wherein the MAHBM comprises core particulates coated with an amorphous calcium silicate hydrate, and the core particulates consist of calcium aluminate or sodium aluminate;
introducing the geopolymer cement composition into a subterranean formation; and
allowing the geopolymer cement composition to set in the subterranean formation.
13. The method of claim 12 , wherein the MAHBM is present in an amount of about 5% to about 70% by weight of the geopolymer cement composition.
14. The method of claim 13 , wherein MAHBM is present in an amount of about 20% to about 45% by weight of the geopolymer cement composition.
15. The method of claim 12 , wherein the aluminosilicate comprises one or more of ASTM type C fly ash, ASTM type F fly ash, ground blast furnace slag, calcined clays, partially calcined clays, aluminum-containing silica fume, natural aluminosilicate, synthetic aluminosilicate glass powder, zeolite, scoria, bentonite, or pumice, and the aluminosilicate is present in an amount of about 5% to about 50% by weight of the geopolymer cement composition.
16. The method of claim 12 , wherein the metal silicate comprises one or more of sodium silicate, sodium metasilicate, magnesium silicate, or potassium silicate, and the metal silicate is present in an amount of about 1% to about 80% by weight of the geopolymer cement composition.
17. The method of claim 12 , wherein the alkaline activator comprises one or more of a metal hydroxide, ammonium hydroxide, sodium bicarbonate, sodium carbonate, lime, caustic soda, Portland cement, or hydrated lime, and the alkaline activator is present in an amount of about 1% to about 20% by weight of the geopolymer cement composition.
18. The method of claim 12 , wherein the carrier fluid comprises one or more of freshwater, saltwater, brine, or seawater, and the carrier fluid is present in an amount of about 40% to about 95% by weight of the geopolymer cement composition.