Patent · US Active

Hydrophilic ether carboxylic acids as lubricant for salt based drilling systems

US10435609B2 · kind B2 · utility

2Cited by

31References

12Claims

0Family size

Assignee

Emery Oleochemicals GmbH · DE

Inventors

Diana Maker · Mettmann, DE
Heinz-Joachim Muller · Burgkirchen an der Alz, DE

Key dates

Filing date	Jan 7, 2015
Grant date	Oct 8, 2019
Priority date	—
Expiry date	Mar 3, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/34
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a composition comprising (i) at least 10 wt % of an inorganic and/or organic, water soluble salt, based on the total weight of the composition; (ii) water; and (iii) an ether monocarboxylic acid. Further aspects of the invention relate to the use of an ether monocarboxylic acid of the invention, an amide, a salt or an ester thereof as a lubricant preferably in salt based drilling systems.

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