Patent · US Active

Environmental friendly well treatment fluids comprising an ester

US10253236B2 · kind B2 · utility

0Cited by

32References

15Claims

0Family size

Assignee

AMRIL AG · CH

Inventors

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

Key dates

Filing date	Oct 31, 2013
Grant date	Apr 9, 2019
Priority date	—
Expiry date	Aug 5, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/32
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to environmental friendly well treatment fluids comprising water and/or an organic phase and an ester obtainable by reacting a polycarboxylic acid with a hydroxy monocarboxylic acid. The invention also relates to the use of said ester as viscosifier and/or corrosion inhibitor for a well treatment fluid and preferably for a well treatment fluid for offshore well drilling.

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