Geopolymer compositions and methods
AssigneeSchlumberger Technology Corporation
InventorsMark Meade, Andrey Vladimirovich Yakovlev, Anatoly Vladimirovich Medvedev, Nathan Fischer, Christopher Parton, Veronica Richter McDonald, Yeukayi Nenjerama, Randy Tercero
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Abstract
Geopolymeric compositions are presented that are useful as geopolymer slurries for cementing subterranean wells. The slurries may contain an aluminosilicate source, an alkaline source and a carrier fluid. The slurries generate an alkali metal or alkaline earth hydroxide activator in situ, thereby avoiding or reducing handling of alkali materials at a wellsite.
Claims24
A method, comprising:
- preparing a pumpable geopolymer slurry comprising an aluminosilicate source, an alkaline source and a carrier fluid, wherein the alkaline source generates an alkali metal hydroxide or alkaline earth metal hydroxide or both in situ.
(canceled)
A method, comprising:
- preparing a pumpable geopolymer slurry comprising an aluminosilicate source,, an alkaline source and a carrier fluid, wherein the alkaline source generates an alkali metal hydroxide or alkaline earth metal hydroxide in situ;
- placing the pumpable geopolymer slurry in a subterranean well;
- and
- setting the pumpable geopolymer slurry to form a geopolymer.
(canceled)
A method, comprising:
- preparing a pumpable geopolymer slurry comprising an aluminosilicate source,, an alkaline source and a carrier fluid, wherein the alkaline source generates an alkali metal hydroxide or alkaline earth metal hydroxide or both in situ, and wherein the aluminosilicate source is a fly ash, a volcanic ash, a ground blast furnace slag, a calcined or partially calcined clay, an aluminum-containing silica fume, a natural aluminosilicate, a synthetic aluminosilicate glass powder, a zeolite, a scoria, an allophone, a bentonite, a red mud, a calcined red mud, a pumice, or a combination thereof.
(canceled)
(canceled)
Dependencies are inferred from the claim text.