Patent ID: 11920082
Assignee: BROMINE COMPOUNDS LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A wellbore fluid, which is a monovalent brine comprising one or more alkali bromide salt(s) and one or more TCT-reducing additive (s) selected from the group consisting of alkali nitrates, wherein the monovalent brine comprises water and a binary salt mixture consisting of sodium bromide and alkali nitrate, said monovalent brine being of density in the range from 1.47 to 1.55 g/ml; and
wherein the monovalent brine is sodium bromide/sodium nitrate brine of density from 1.49 gr/ml to 1.52 gr/ml and TCT below −5.0° C. or
wherein the monovalent brine is sodium bromide/potassium nitrate brine of density from 1.48 gr/ml to 1.51 gr/ml and TCT below −5.0° C.