Geopolymer Cement Compositions and Methods of Use

Patent metadata

Field	Value
Publication number	US-2016244656-A1
Application number	US-201615141634-A
Country	US
Kind code	A1
Filing date	Apr 28, 2016
Priority date	Aug 16, 2012
Publication date	Aug 25, 2016
Grant date	—

Abstract

Methods and compositions are provided that relate to cementing operations. Methods and compositions that include pumice in geopolymer cement compositions comprising slag.

First claim

What is claimed is:

1 . A geopolymer cement composition comprising:
a cementitious component consisting essentially of slag and pumice; a hydroxyl source; and water.

2 . The composition of claim 1 , wherein the slag is present in an amount in a range of from about 40% to about 100% by weight of the cementitious component.

3 . The composition of claim 1 , wherein the pumice is present in an amount in a range of from about 0.1% to about 60% by weight of the cementitious component.

4 . The composition of claim 1 , wherein the hydrated lime is present in an amount in a range of from about 0.1% to about 25% by weight of the cementitious component.

5 . The composition of claim 1 , wherein the geopolymer cement composition is free of any additional cementitious materials.

6 . A geopolymer cement composition comprising:
a cementation component consisting essentially of slag and pumice; hydrated lime; an additive selected from the group consisting of crystalline silica, amorphous silica, fumed silica, a fiber, a hydratable clay, calcined shale, vitrified shale, a microsphere, diatomaceous earth, metakaolin, ground perlite, rice husk ash, zeolite, a resin, a dispersant, a defoaming agent, a set retarder, a weighting agent, a lightweight additive, a gas-generating additive, a lost-circulation material, a filtration-control additive, a fluid-loss-control additive, a foaming additive, a thixotropic additive, and any combination thereof; and water.

7 . The composition of claim 6 , wherein the geopolymer cement composition has a density of about 12 pounds per gallon to about 20 pounds per gallon.

8 . The composition of claim 6 , wherein the slag is present in an amount in a range of from about 40% to about 60% by weight of the cementitious component, and wherein the pumice is present in an amount in a range of from about 40% to about 60% by weight of the cementitious component.

9 . The composition of claim 6 , wherein the geopolymer cement composition does not comprise a set accelerator.

10 . The composition of claim 6 , wherein the hydrated lime is present in an amount in a range of from about 0.1% to about 25% by weight of the cementitious component.

11 . A geopolymer cement composition comprising:
a cementitious component comprising slag and pumice water; hydrated lime; an additive selected from the group consisting of crystalline silica, amorphous silica, fumed silica, a fiber, a hydratable clay, calcined shale, vitrified shale, a microsphere, diatomaceous earth, metakaolin, ground perlite, rice husk ash, zeolite, a resin, a dispersant, a defoaming agent, a set retarder, a weighting agent, a lightweight additive, a gas-generating additive, a lost-circulation material, a filtration-control additive, a fluid-loss-control additive, a foaming additive, a thixotropic additive, and any combination thereof;

12 . The composition of claim 11 , wherein the slag is present in an amount in a range of from about 40% to about 60% by weight of the cementitious component, and wherein the pumice is present in an amount in a range of from about 40% to about 60% by weight of the cementitious component.

13 . The composition of claim 11 , wherein the hydrated lime is present in an amount in a range of from about 0.1% to about 25% by weight of the cementitious component.

14 . The composition of claim 11 , wherein the geopolymer cement composition is free of any additional cementitious materials.

15 . The composition of claim 11 , wherein the geopolymer cement composition has a density of about 12 pounds per gallon to about 20 pounds per gallon.

16 . The composition of claim 11 , wherein the slag is present in an amount in a range of from about 40% to about 100% by weight of the cementitious component.

17 . A geopolymer cement composition comprising:
a cementitious component consisting of slag in an amount in a range of from about 40% to about 60% by weight of the cementitious component and pumice in an amount in a range of from about 40% to about 60% by weight of the cementitious component, wherein the geopolymer cement composition is free of any additional cementitious component; hydrated lime in an amount in a range of from about 0.1% to about 20% by weight of the cementitious component; an additive selected from the group consisting of crystalline silica, amorphous silica, fumed silica, a fiber, a hydratable clay, calcined shale, vitrified shale, a microsphere, diatomaceous earth, metakaolin, ground perlite, rice husk ash, zeolite, a resin, a dispersant, a defoaming agent, a set retarder, a weighting agent, a lightweight additive, a gas-generating additive, a lost-circulation material, a filtration-control additive, a fluid-loss-control additive, a foaming additive, a thixotropic additive, and any combination thereof; and water.

18 . The composition of claim 17 , wherein the geopolymer cement composition is free of any additional cementitious materials.

19 . The composition of claim 17 , wherein the geopolymer cement composition has a density of about 12 pounds per gallon to about 20 pounds per gallon.

20 . The composition of claim 17 , wherein the geopolymer cement composition does not comprise a set accelerator.

Assignees

• Halliburton Energy Services Inc

Inventors

• Chatterji Jiten
• Brenneis D Chad
• Keys Crystal L

Classifications

• Y02W30/91

  Use of waste materials as fillers for mortars or concrete · CPC title

• C09K8/487 Primary

  Fluid loss control additives; Additives for reducing or preventing circulation loss · CPC title

• C04B28/006 Primary

  containing mineral polymers, e.g. geopolymers of the Davidovits type · CPC title

• Y02P40/10

  Production of cement, e.g. improving or optimising the production methods; Cement grinding · CPC title

• C09K8/46

  containing inorganic binders, e.g. Portland cement · CPC title