Patent ID: 11859124
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C

Claim 0:
1. A method of well treatment comprising:
providing a plurality of polymers and specification requirements for fluid loss control;
measuring physicochemical properties of each of the plurality of polymers, the physicochemical properties comprising a combination of polydispersity index (PDI), radius of gyration (Rg), concentration (conc) and weight average molecular weight (Mw);
correlating a fluid loss performance of each polymer in the plurality of polymers to the measured physicochemical properties of each of the plurality of polymers, wherein the correlating uses a model of the form of:

ln(FL)=A+B*PDI+C*Rg+D[CONC]+E*Mw

where A, B, C, D, and E are constants and FL is fluid loss, where A, B, C, D, and E are determined by regression analysis of PDI, Rg, Mw, and fluid loss at a concentration for each polymer in the plurality of polymers;
selecting a polymer from the plurality of polymers such that the correlated fluid loss performance of a treatment fluid prepared with the polymer satisfies the specification requirements for fluid loss control;
preparing a test fluid comprising the selected polymer;
measuring a fluid loss of the test fluid;
preparing a treatment fluid comprising the selected polymer when the fluid loss of the test fluid is less than the specification requirements for fluid loss control, wherein the preparing of the treatment fluid accounts for an effect of Rg of the selected polymer on the fluid loss performance and is based, at least in part, on the constants; and
introducing the treatment fluid into a wellbore.