Methods of using settable compositions comprising cement kiln dust
First Claim
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1. A method comprising:
- (a) providing a settable composition comprising water and cement kiln dust;
(b) introducing the settable composition into a subterranean formation; and
(c) including at least one step selected from the group consisting of;
(i) allowing the settable composition to set so as to seal a void located in a pipe string disposed in the subterranean formation, and/or located in a cement sheath located in the annulus between the pipe string and the subterranean formation;
(ii) allowing the settable composition to set so as to seal a portion of a gravel pack; and
(iii) allowing the settable composition to set to form a kickoff plug in the subterranean formation;
drilling a well bore in the subterranean formation wherein the kickoff plug changes the direction of the well bore.
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Abstract
The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The settable compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the settable composition; introducing the settable composition into a location to be cemented; and allowing the settable composition to set therein. The location to be cemented may be above ground or in a subterranean formation.
279 Citations
23 Claims
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1. A method comprising:
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(a) providing a settable composition comprising water and cement kiln dust; (b) introducing the settable composition into a subterranean formation; and (c) including at least one step selected from the group consisting of; (i) allowing the settable composition to set so as to seal a void located in a pipe string disposed in the subterranean formation, and/or located in a cement sheath located in the annulus between the pipe string and the subterranean formation; (ii) allowing the settable composition to set so as to seal a portion of a gravel pack; and (iii) allowing the settable composition to set to form a kickoff plug in the subterranean formation;
drilling a well bore in the subterranean formation wherein the kickoff plug changes the direction of the well bore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of sealing a portion of a gravel pack comprising:
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providing a settable composition comprising water and cement kiln dust; introducing the settable composition into the portion of the gravel pack; and allowing the settable composition to set in the portion of the gravel pack. - View Dependent Claims (10, 11)
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12. A method of sealing a void located in a pipe string disposed in a subterranean formation, and/or located in a cement sheath located in an annulus between a pipe string and the subterranean formation, comprising:
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providing a settable composition comprising water and cement kiln dust; introducing the settable composition into the void; and allowing the settable composition to set in the void. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of changing a direction of drilling in a well bore comprising:
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providing a settable composition comprising water and cement kiln dust; introducing the settable composition into the well bore at a location in the well bore wherein the direction of drilling is to be changed; allowing the settable composition to set to form a kickoff plug in the well bore; continuing drilling the well bore, wherein the kickoff plug changes the direction of the well bore. - View Dependent Claims (20, 21, 22, 23)
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Specification