Drilling fluids

Details Drilling fluids Drilling fluids

2006-03-14

2006-03-14

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S130000, C564S504000, C564S505000, C540S466000

Reexamination Certificate

active

07012043

ABSTRACT:
Drilling fluid additives that act to control clay swelling in drilled formations without adversely effecting the properties of the drilling fluid. The drilling fluid additives preferably comprise a polyether amine, a polyether amine derivative, or mixtures thereof. Drilling fluids that comprise such drilling fluid additives and a method of reducing clay swelling in drilled formations are also disclosed.

REFERENCES:
patent: 5028343 (1991-07-01), Lindstrom
patent: 6247543 (2001-06-01), Patel et al.
patent: 6331508 (2001-12-01), Pakulski
patent: 6339048 (2002-01-01), Santhanam et al.
patent: 6484821 (2002-11-01), Patel et al.
patent: 6609578 (2003-08-01), Patel et al.
patent: 6756345 (2004-06-01), Pakulski et al.
patent: 2003/0155157 (2003-08-01), Patel et al.

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