Patent · US Active

Method of increasing lubricity of brine-based drilling fluids and completion brines

US8071510B2 · kind B2 · utility

20Cited by

11References

31Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

William Chrys Scoggins · Celle, DE
Mingjie Ke · Spring, US

Key dates

Filing date	Jul 16, 2008
Grant date	Dec 6, 2011
Priority date	—
Expiry date	Jan 23, 2029

Classification

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

Abstract

The lubricity of a drilling fluid or a completion fluid may be increased by incorporating into the fluid a water-soluble or water-dispersible salt of a sulfonated (sulfated) vegetable oil or a derivative thereof, such as a sulfonated (sulfated) castor oil. Suitable derivatives include the sodium, potassium, calcium, magnesium or ammonium salt. A non-ionic or anionic surfactant which is capable of enhancing the solubility of the salt may further be incorporated into the drilling fluid or completion fluid.

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