Oil-based demulsifying agent and its use in the treatment of...

Details Oil-based demulsifying agent and its use in the treatment of... Oil-based demulsifying agent and its use in the treatment of...

2007-01-09

2007-01-09

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C507S256000, C507S259000, C507S261000, C507S239000, C507S240000, C507S244000, C507S921000, C516S198000, C516S200000, C166S312000

Reexamination Certificate

active

09953209

ABSTRACT:
An oil-based demulsifying formulation which can be used in the treatment of drains bored in oil-based mud, non ecotoxic and optimally compatible with formation fluids, comprises at least one wetting agent chosen from anionic surfacetants and at least one demulsifier (or “emulsion breaker”) chosen from copolymers of ethylene oxide and propylene oxide, alcohol or phenol derivatives with alkoxylated or polyalkoxylated chain formations, polyalkyleneglycols, polyamines, alkoxylated or polyalkoxylated derivatives of amines, quaternary ammonium salts, quaternized alkanolamine esters, alkyl esters of fatty acids or natural oils, possible alkoxylated or polyalkoxylated, and silicated derivatives such as polysiloxanes.

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patent: 1524448 (1978-09-01), None
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