Method and solvent composition for stimulating the...

C - Chemistry – Metallurgy – 09 – K

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C09K 3/00 (2006.01) C10G 1/00 (2006.01)

Patent

CA 1068892

"Abstract of the Disclosure" A method and solvent composition for removing viscous crude oil, waxes, asphaltenes and resin precipitates of petro- leum origin from oil wells, flow lines and pore spaces of oil- bearing formations. The solvent composition is a mixture of about 45 to about 85 volume percent of a normally liquid ali- phatic hydrocarbon boiling in the range of about 120° F. to about 550° F., between about 5 to 45 volume percent of a normally liquid aromatic hydrocarbon, between about 0.5 to about 6 volume percent of an ether of an aliphatic polyhydric alcohol, and between about 1 to about 15 volume percent of a lower alkyl monohydric alcohol.

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