US 12,435,260 B2
Synergistic effects of asphaltite and graphene on cement resilience
Chad Bryant Huffman, Houston, TX (US); Thomas Jason Pisklak, Houston, TX (US); and Giorgio DeVera, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Dec. 1, 2023, as Appl. No. 18/526,672.
Prior Publication US 2025/0179344 A1, Jun. 5, 2025
Int. Cl. C09K 8/467 (2006.01); C04B 14/02 (2006.01); C04B 24/36 (2006.01); C04B 40/00 (2006.01); C04B 103/00 (2006.01)
CPC C09K 8/467 (2013.01) [C04B 14/024 (2013.01); C04B 24/36 (2013.01); C04B 40/0032 (2013.01); C04B 2103/0092 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method comprising:
providing a cement slurry by incorporating an asphaltite and graphene into a mixture comprising: a cement and water, whereby the cement slurry comprises from 0.2 to 20 percent graphene by weight of cement (% graphene bwoc) and from 0.2 to 20 percent asphaltite by weight of cement (% graphene bwoc);
placing the cement slurry in a workspace; wherein the workspace comprises a wellbore penetrating a subterranean formation;
allowing the cement slurry to set to provide a hardened cement; and
thereby increasing a resiliency of the hardened cement by a synergistic interaction of the asphaltite and the graphene relative to a resiliency of a comparative hardened cement produced from an otherwise same cement slurry absent the asphaltite, the graphene or both, wherein the increased resiliency is determined as a reduction in a ratio of Young's modulus (YM) to compressive strength (CS) of the hardened cement relative to a ratio of YM to CS of the comparative hardened cement.