Methods and compositions comprising cement kiln dust having an altered particle size

A subterranean treatment method comprising:

• introducing a settable composition into a subterranean formation, wherein the settable composition comprises cement kiln dust having a mean particle size that has been reduced from its original size;
• and
• allowing the settable composition to set in the subterranean formation, wherein the mean particle size of the cement kiln dust has been reduced in an amount sufficient to provide an increase in 24-hour compressive strength for the settable composition of at least about 5% as measured using an Ultrasonic Cement Analyzer while maintained at 140° F. and 3,000 psi.

A subterranean treatment method comprising:

• introducing a settable composition into a subterranean formation, wherein the settable composition comprises cement kiln dust that has been ground, wherein the cement kiln dust is present in an amount of about 50% to 100% by weight of cementitious components present in the settable composition;
• and
• allowing the settable composition to set in the subterranean formation.

A method of cementing comprising:

• providing a settable composition comprising cement kiln dust having a mean particle size that has been reduced from its original size;
• and
• allowing the settable composition to set, wherein the mean particle size of the cement kiln dust has been reduced in an amount sufficient to provide an increase in 24-hour compressive strength for the settable composition at least about 5% as measured using an Ultrasonic Cement Analyzer while maintained at 140° F. and 3,000 psi.