Halliburton Energy Services, Inc.

Giorgio Devera

Thomas Jason Pisklak

Samuel Jason Lewis

Kyriacos Agapiou

Siva Rama Krishna Jandhyala

Chad Huffman

Chad Bryant Huffman

A method of performing a wellbore servicing operation may include: obtaining a measurement of steady state creep rate () within a cement sheath associated with a wellbore while performing the wellbore servicing operation in the wellbore; determining a number of cycles to failure (N) of the cement sheath using a cement material fatigue model wherein the cement material fatigue model has an input of steady state creep rate (); adjusting at least one operational parameter of the wellbore servicing operation in response to the determined number of cycles to failure (N) to form adjusted operational parameters; and performing the wellbore B servicing operation at the adjusted operational parameters.

Method to determine cement sheath failure risk under cyclic loads using real-time downhole deformation data

A hardened cement produced by setting a cement slurry including an asphaltite (e.g., GILSONITE™ uintaite), graphene (e.g., bioderived renewable graphene (BRG), non-BRG graphene, a synthetic graphene, or a combination thereof), a cement, and water. The cement slurry can comprise from about 0.2 to about 20 weight percent of the asphaltite and from about 0.2 to about 20 weight percent of the graphene by weight of cement (% graphene bwoc). The hardened cement has one or more enhanced mechanical properties (e.g., increased compressive strength (CS), or increased resiliency as indicated by an increased reduction in a ratio of YM/CS) relative to a same hardened cement produced by allowing to set a same cement slurry absent the asphaltite and/or the graphene. Methods of cementing with the cement slurry are also provided.

Synergistic effects of asphaltite and graphene on cement resilience

A hardened cement produced by setting a cement slurry including graphene comprising bioderived renewable graphene (BRG), a cement, and water. The graphene of the cement slurry comprises, consists essentially of, or consists of BRG, and the cement slurry comprises at least 0.2 (e.g., from about 0.2 to about 20) percent graphene comprising BRG by weight of cement (% graphene bwoc). The hardened cement produced by allowing the cement slurry to set has one or more enhanced mechanical properties (e.g., increased Young's modulus (YM), increased compressive strength (CS), or increased resiliency as indicated by an increased reduction in a ratio of YM/CS) relative to a same hardened cement produced by allowing to set a same cement slurry comprising a same total amount of graphene, with synthetic graphene (SG) in place of at least a portion of the BRG. Methods of cementing with the cement slurry are also provided.

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Houston, TX, United States of America

Giorgio Devera