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US 12,264,280 B2Granted
Mitigation of transient gels in cements
AssigneeHalliburton Energy Services, Inc.
InventorsThomas Jason Pisklak, Samuel J. Lewis, Claudia Pineda
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Abstract
A cement slurry including graphene, a cement, and water; the graphene comprises bioderived renewable graphene (BRG). The cement slurry has reduced transient gel formation relative to a same cement slurry absent the graphene. Methods of mitigating transient gels in cement are also provided.
Claims20
A cement slurry comprising:
- graphene, wherein the graphene comprises bioderived renewable graphene (BRG), wherein the BRG comprises nanosheets comprising greater than 90 weight percent carbon, and wherein the nanosheets have a surface area of at least 2000 m2/g and up to 2496 m2/g, a pore volume of at least 3 cc/g and up to 5.0 cc/g, or a combination thereof;
- a cement;
- and
- water,
- wherein the cement slurry is positioned in a wellbore and the cement slurry, when unset, has reduced transient gel formation relative to a same cement slurry, when unset, absent the graphene.
2 more elements
Dependencies are inferred from the claim text.