Process for treating an oil well

Details Process for treating an oil well Process for treating an oil well

2005-03-29

2008-08-26

Kugel, Timothy J (Department: 1796)

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

C166S305100, C516S022000, C516S027000, C516S030000

Reexamination Certificate

active

07417010

ABSTRACT:
A method of treating a subterranean formation, the method comprising: (A) injecting down a well bore into the formation an admixture of (a) an emulsion having an internal aqueous phase comprising a water-soluble oil or gas field chemical or an aqueous dispersion of a water-dispersible oil or gas field chemical and an external oil phase comprising a liquid hydrocarbon and an oil-soluble surfactant and (b) a demulsifier comprising a solution of a surfactant having a cloud point temperature of above 40° C.; or (B) separately injecting down a well bore into the formation emulsion (a) and demulsifier (b) and generating an admixture of emulsion (a) and demulsifier (b) within the formation.

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