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

Claim 0:
1. A method of designing a cement slurry comprising:
(a) selecting a target permeability and a density requirement;
(b) inputting the target permeability into a permeability model and generating a proposed cement composition using the permeability model, wherein the proposed cement composition comprises at least a dry blend of cement and concentration thereof, and a water and 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;
(c) preparing the cement slurry based on the proposed cement composition; and
(d) introducing the cement slurry into a wellbore and allowing the cement slurry to set to form a hardened cement.