Patent · US Active

Crystallization suppressant combinations for high density clear brine fluids

US10745609B2 · kind B2 · utility

1Cited by

1References

4Claims

0Family size

Assignee

LANXESS Solutions US Inc. · US

Inventors

Thomas G. Ray · Camden, US
Colin H. Keene · Stephens, US
David J. Sikora · Middlebury, US
David W. Bartley · Camden, US
John Warner · Houston, US
Justin Whitfield · Billerica, US
Dwight Tshudy · Salem, US
Joni P. Williams · Medway, US

Key dates

Filing date	Apr 3, 2018
Grant date	Aug 18, 2020
Priority date	—
Expiry date	Apr 3, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/12
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Compounds are identified that act as crystallization suppressants when added to clear brine fluids, significantly lowering the true crystallization temperatures of the brines, and allowing for higher salt content in clear brine fluids. The crystallization suppressants of the invention also allow for the preparation of higher density zinc free brines. Crystallization suppressant blends are also identified that allow for the preparation of high density clear brine fluids with lower viscosities.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.