Water-based drilling fluid

Details Water-based drilling fluid Water-based drilling fluid

2008-02-07

2010-11-16

Kugel, Timothy J. (Department: 1796)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S261000, C166S304000, C166S312000

Reexamination Certificate

active

07833946

ABSTRACT:
A water based drilling fluid contains as additive one or more alkyl ethoxylates having the formula RO(CH2CH2O)nH;wherein:R is a C16-22alkyl group (preferably R is aliphatic and more preferably R is linear), andn is an integer in the range 2-30.The fluid further contains one or more viscosifying agents, and is substantially clay-free.

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