Patent ID: 11945994
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 13:
14. The method of claim 11 further comprising:
(g) selecting a target permeability and a density requirement;
(h) inputting the target permeability into the fitted permeability model and generating a proposed cement composition using the fitted permeability model, wherein the proposed cement composition comprises at least the plurality of cements and concentration thereof, the water and concentration thereof, and one or the more of the supplementary cementitious materials and a concentration thereof, such that a cement slurry formed from the proposed cement composition meets the density requirement, wherein the permeability model is a function of film forming additives, volume average value of particle size distribution comprising D30, D50, D70, and/or D90 of solids in the dry blend, and mass averaged values comprising at least one mass averaged value selected from the group consisting of Ca/Si, Ca/Al, Si/Al ratio of the dry blend, and any combination thereof;
(i) preparing the cement slurry based on the proposed cement composition and allowing the cement slurry to set to form a hardened cement;
(j) permeability testing the hardened cement to form a tested permeability; and
(k) comparing the tested permeability to the target permeability and performing steps (h)-(k) if the tested permeability is higher than the target permeability, wherein the step of generating the proposed cement composition comprises selecting different concentrations and/or different chemical identities for the Plurality of cements and/or one or the more of the supplementary cementitious materials than previously selected.