Emulsion breaker

Details Emulsion breaker Emulsion breaker

2011-04-12

2011-04-12

Kugel, Timothy J. (Department: 1765)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S221000, C516S143000, C516S181000, C516S186000, C516S187000, C526S317100, C526S318000, C526S318100, C526S318200, C526S318400, C528S271000, C528S361000

Reexamination Certificate

active

07923418

ABSTRACT:
This invention provides acrylate polymers having at least two different ester groups. The ester groups are selected from the following:a) an aralkyl group;b) a linear alkylether group;c) a polyethoxylated alkylaryl group; andd) a polyethoxylated alkyl group,with the proviso that at least one of said ester groups is selected from b) or d). Processes for preparing such polymers and processes for breaking emulsions with these acrylate polymers are also provided.

REFERENCES:
patent: 5693216 (1997-12-01), Hart et al.
patent: 2007/0192981 (2007-08-01), Lawshe

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