Patent ID: 7297664

Claim:
A method of treating a subterranean zone, comprising: introducing a cement-free settable fluid into the zone, the fluid comprising: a zeolite represented by the formula: M a/n [(AlO 2 ) a (SiO 2 ) b ]·xH 2 O where M represents one or more cations selected from the group consisting of Na, K, Mg, Ca, Sr, Li, Ba, NH 4 , CH 3 NH 3 , (CH 3 ) 3 NH, (CH 3 ) 4 N, Ga, Ge and P; n represents the cation valence; b:a ratio is in a range from greater than or equal to 1 and less than or equal to 5; and x represents number of moles of water entrained into the zeolite Class F fly ash, a source of calcium ion, an accelerator that comprises sodium sulfate, sodium carbonate, calcium sulfate, calcium carbonate, potassium sulfate, or potassium carbonate, and a carrier fluid; and allowing the fluid to set at a temperature of less than about 140° F. therein.