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

Claim 10:
11. A method comprising:
(a) providing cement components comprising a plurality of cements each comprising a dry blend of cement, supplementary cementitious materials, inert materials, and chemical additives;
(b) analyzing physicochemical properties of the cement components;
(c) preparing a plurality of cement slurries comprising various amounts of the cement components and water;
(d) curing the plurality of cement slurries at various temperatures and pressures to form a plurality of cured cements;
(e) performing permeability tests on each of the plurality of cured cements; and
(f) fitting a permeability model using regression analysis of the permeability of each of the plurality of cured cements, composition of the plurality of cement slurries, the physicochemical properties of the cement components, curing pressure, and curing temperature, to form a fitted permeability model, 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.