FIELD: chemistry.
SUBSTANCE: method for cementing in a subterranean formation includes providing a set-delayed cement composition comprising water, pumice, hydrated lime, a dispersing agent and a set retarder, wherein the set retarder comprises a phosphonic acid derivative, and the dispersing agent is a polycarboxylic acid ester; foaming the set-delayed cement composition; activating the set-delayed cement composition; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation. Also described are additional methods, a foamed set-delayed cement composition and a cementing system.
EFFECT: invention relates to methods and compositions, including those used in various operations performed underground.
27 cl, 3 dwg, 7 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| CEMENT SETTING ACTIVATOR FOR CEMENT COMPOSITIONS WITH RETARDED SETTING AND RELATED METHODS | 2014 |
|
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| METHOD OF BOREHOLE CEMENTATION | 2006 |
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| SLAKED LIME FLUIDITY IN COMPOSITIONS WITH DELAYED SETTING AND OTHER COMPOSITION CAPABLE OF SOLIDIFYING | 2013 |
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