Geopolymer cement slurries, cured geopolymer cement and methods of making and use thereof

Patent metadata

Field	Value
Publication number	US-11820708-B2
Application number	US-202016822727-A
Country	US
Kind code	B2
Filing date	Mar 18, 2020
Priority date	Mar 18, 2020
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

Geopolymer cement slurries, cured geopolymer cements, and methods of making cured geopolymer cement and methods of using geopolymer cement slurries are provided. The geopolymer cement slurry comprises Saudi Arabian volcanic ash, an aqueous solution, Na 2 SiO 3 , NaOH, and a resin. The Saudi Arabian volcanic ash comprises SO 3 , CaO, SiO 2 , Al 2 O 3 , Fe 2 O 3 , MgO, and K 2 O.

First claim

What is claimed is:

1. A geopolymer cement slurry comprising:
an aqueous solution;
Saudi Arabian volcanic ash, in which the Saudi Arabian volcanic ash is free of TiO 2 and comprises SO 3 , CaO, SiO 2 , Al 2 O 3 , Fe 2 O 3 , MgO, and K 2 O;
in which the Saudi Arabian volcanic ash comprises labradorite, augite, and forsterite;
from 25 to 50 wt. % Na 2 SiO 3 ;
from 15 to 35 wt. % NaOH;
a resin; and
a sodium aluminosilicate hydrate having a structure of:

2. The geopolymer cement slurry of claim 1 , in which the Na 2 SiO 3 has a ratio of Na 2 O to SiO 2 of from 0.250:1 to 0.350:1.

3. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises a pH of from 11.6-13.0.

4. The geopolymer cement slurry of claim 1 , in which the Saudi Arabian volcanic ash has a particle size of from 20 to 30 μm.

5. The geopolymer cement slurry of claim 1 , in which the Saudi Arabian volcanic ash comprises from 40 wt. % to 50 wt. % SiO 2 and from 10 wt. % to 20 wt. % Al 2 O 3 .

6. The geopolymer cement slurry of claim 1 , in which the Saudi Arabian volcanic ash comprises:
from 0.05 wt. % to 0.2 wt. % SO 3 ;
from 5 wt. % to 10 wt. % CaO;
from 40 wt. % to 50 wt. % SiO 2 ;
from 10 wt. % to 20 wt. % Al 2 O 3 ;
from 10 wt. % to 15 wt. % Fe 2 O 3 ;
from 5 wt. % to 10 wt. % MgO; and
from 0.5 wt. % to 5 wt. % K 2 O.

7. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises 10 to 30 wt. % resin.

8. The geopolymer cement slurry of claim 1 , in which the resin comprises bisphenol-A-epichlorohydrin epoxy; 2,3-epoxypropyl-o-tolyl ether; alkyl glycidyl ether; 1,6-hexanediol diglycidyl ether; butyl glycidyl ether; cyclohexanedimethanol; cyclohexanedimethanol diclydicyl ether; or combinations of these.

9. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises a sodium aluminosilicate hydrate having a formula of:
Na n [(—SiO 2 ) z —AlO 2 ] n ·y H 2 O, where n represents a degree of polymerization ranging 1 to 50 and z represents an amount of silicate ranging from 2 to 10.

10. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry has a ratio of Na 2 SiO 3 combined with NaOH to Al 2 O 3 ranges from 0.5:1.0 to 7.0:1.0.

11. The geopolymer cement slurry of claim 1 , in which aqueous solution comprises 10 to 40 wt. % deionized water, tap water, fresh water, salt water, natural or synthetic brine, municipal water, formation water, produced water, well water, filtered water, distilled water, sea water, or combinations of these.

12. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises from 30 to 60 wt. % Saudi Arabian volcanic ash.

13. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry further comprises a cement precursor material comprising one or more components selected from the group consisting of calcium hydroxide, silicates, belite (Ca 2 SiO 5 ), alite (Ca 3 SiO 4 ), tricalcium aluminate (Ca 3 Al 2 O 6 ), tetracalcium aluminoferrite (Ca 4 Al 2 Fe 2 O 10 ), brownmillerite (4CaO·Al 2 O 3 ·Fe 2 O 3 ), gypsum (CaSO 4 ·2H 2 O), sodium oxide, potassium oxide, lime (calcium oxide), hexavalent chromium, trivalent chromium, calcium aluminate, and combinations thereof.

14. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry further comprises one or more additives selected from the group consisting of dispersants, fluid loss control agents, retarders, expansion additives, antifoaming agents, stabilizers, accelerators, extenders, weighting agents, lost circulation control agents, surfactants, gypsum, hematite, manganese tetroxide, silica flour, and silica sand.

15. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry further comprises a curing agent comprising diethylenetriamine, diethyltoluenediamine, polyoxypropylene diamine, or combinations of these.

16. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises a yield point of from 5 to 70 lbf/100 ft 2 .

17. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises a plastic viscosity of from 50 to 350 cP.

18. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises a 10-second gel strength of from 5 to 50 lbf/100 ft 2 .

19. The geopolymer cement slurry of claim 1 , in which the geopolymer cement slurry comprises a thickening time at 100° F. of greater than 5 hours.

20. A geopolymer cement slurry comprising:
an aqueous solution;
Saudi Arabian volcanic ash, in which the Saudi Arabian volcanic ash is free of TiO 2 and comprises SO 3 , CaO, SiO 2 , Al 2 O 3 , Fe 2 O 3 , MgO, and K 2 O;
in which the Saudi Arabian volcanic ash comprises labradorite, augite, and forsterite;
from 25 to 50 wt. % Na 2 SiO 3 ;
from 15 to 35 wt. % NaOH;
a resin, in which the resin comprises a bisphenol-A-(epichlorohydrin) epoxy resin with oxirane mon [(C 12 -C 14 )-(alkyloxy)methyl] derivatives; and
a sodium aluminosilicate hydrate having a structure of:

Assignees

• Saudi Arabian Oil Co

Inventors

• Alanqari Khawlah A
• Al-Yami Abdullah S

Classifications

• C04B14/14 Primary

  Minerals of vulcanic origin {(granite C04B14/048)} · CPC title

• C04B14/041

  Aluminium silicates other than clay · CPC title

• C04B20/0036

  Microsized or nanosized · CPC title

• C04B24/121

  Amines, polyamines · CPC title

• C04B24/281

  Polyepoxides · CPC title