Cementitious compositions are provided that can be use in drilling oil and gas well applications. The compositions include a source of hydraulically settable cement, calcium carbonate, free lime and alkali ions, calcium sulfate and an organic component. Methods for cementing a casing and liners and for remedial operations such as plugging back and squeeze cementing are also provided.

 
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> Cement admixture, cement composition, and method for suppressing carbonation using the same

> Reduction of lime consumption when treating refractor gold ores or concentrates

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