Topical defoamer and demulsifier

Details Topical defoamer and demulsifier Topical defoamer and demulsifier

2004-10-05

2008-03-25

Sellers, Robert (Department: 1796)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S136000, C507S245000, C507S261000

Reexamination Certificate

active

07348297

ABSTRACT:
Compounds of the formula H(CH2)zCOO—[C2H4O]xCyH2y+1where z is 0-2, x is an integer from 1 to 5 and y is an integer from 4-9 are used as emulsion breakers and defoamers in formation treatment fluids in the recovery of hydrocarbons from subterranean formations. A preferred material has the formula HCOO—[C2H40]3C6H7.

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