Patent ID: 11939518
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 12:
13. The method of claim 12, wherein citric acid is present in the spacer fluid in an amount of about 0.05% to about 0.5% by weight of the spacer fluid, wherein the diutan gum is present in the spacer additive in an amount of about 2% to about 4% by weight of the spacer additive, wherein the hydroxyethyl cellulose is present in the spacer additive in an amount of about 2% to about 3% by weight of the spacer additive, wherein the perlite is present in the spacer additive in an amount of about 93% to about 96% by weight of the spacer additive, wherein the method further comprises combining the spacer additive with one or more solid additives to form a spacer dry blend, and wherein the combining the spacer additive with at least water to form a spacer fluid comprising combing the spacer dry blend comprising the spacer additive with at least water.