Method of increasing lubricity of brine-based drilling...

Details Method of increasing lubricity of brine-based drilling... Method of increasing lubricity of brine-based drilling...

2008-07-16

2011-12-06

Kugel, Timothy J. (Department: 1761)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S134000, C507S136000, C507S138000, C507S139000, C175S065000, C175S270000

Reexamination Certificate

active

08071510

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.

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