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US 9,790,132 B2Granted
Set-delayed cement compositions comprising pumice and associated methods
AssigneeHalliburton Energy Services, Inc.
InventorsThomas Jason Pisklak, Kyriacos Agapiou, Ronnie Glen Morgan, Samuel Jason Lewis, Lance Everett Brothers
Life of this patent
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Abstract
Disclosed is a method of spraying a surface with a set-delayed cement. The method comprises providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; spraying a surface with the set-delayed cement composition; and allowing the set-delayed cement composition to set on the surface.
Claims16
A method of spraying a surface with a set-delayed cement composition, the method comprising:
- providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder;
- conveying the set-delayed cement composition though a conduit and a nozzle;
- activating the set-delayed cement composition with a cement set activator within the nozzle to produce an activated cement composition, wherein the activating the set-delayed cement composition comprises contacting the set-delayed cement composition and the cement set activator within the nozzle, wherein the activator is provided in an amount such that the activated cement composition has a thickening time in a range of about 30 seconds to about 10 minutes;
- spraying a surface with the activated cement composition;
- and
- allowing the activated cement composition to set on the surface.
3 more elements
A method of coating a surface with a set-delayed cement composition, the method comprising:
- providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder;
- conveying the set-delayed cement composition though a nozzle and conduit wherein the nozzle is coupled to the conduit;
- activating the set-delayed cement composition with a Group IA hydroxide, Group IIA hydroxide, or combinations thereof to produce an activated cement composition;
- coating a surface with the activated cement composition;
- and
- allowing the activated cement composition to set on the surface.
3 more elements
Dependencies are inferred from the claim text.