| US 7,338,923 B2 | ||
| Settable drilling fluids comprising cement kiln dust | ||
| Craig W. Roddy, Duncan, Okla. (US); Jiten Chatterji, Duncan, Okla. (US); D. Chad Brenneis, Marlow, Okla. (US); and Bobby J. King, Duncan, Okla. (US) | ||
| Assigned to Halliburton Energy Services, Inc., Duncan, Okla. (US) | ||
| Filed on Apr. 11, 2006, as Appl. No. 11/402,741. | ||
| Prior Publication US 2007/0238621 A1, Oct. 11, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C09K 8/04 (2006.01); C04B 28/00 (2006.01); E21B 33/13 (2006.01) | ||
| U.S. Cl. 507—140 [507/269; 106/819; 166/293] | 29 Claims |
| 1. A settable fluid comprising:
an aqueous-based drilling fluid capable of carrying drill cuttings, wherein the drilling fluid comprises:
water present in an amount sufficient for using the aqueous-based drilling fluid for drilling in a subterranean formation;
and
at least one additive selected from the group consisting of a viscosifier, a weighting material, a thinner, and a filtration
control agent; and
cement kiln dust present in the settable fluid in an amount in the range of from about 1% to about 25% by weight of the settable
fluid.
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