US Classes166/309, Producing foam or gas in well by foaming or gas producing material507/221, Resin is polymer derived from ethylenic monomers only (e.g., maleic, itaconic, etc.)507/118Resin is polymer derived from ethylenic monomers only (e.g., maleic, itaconic, etc.)
International ClassesE21B 43/00
Issued Patent Number:8524641
A composition for providing a stable foam with high tolerance to hydrocarbons includes (a) an aqueous liquid; (b) at least one water soluble or dispersible silicon-containing polyether foamant contained within the aqueous liquid; and (c) a non-aqueous liquid. The aqueous liquid includes water and brine. The non-aqueous liquid includes liquid hydrocarbons.