C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/32
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.
258930
Foral Thomas
Landess John A.
Maly George P.
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