Method and solvent composition for stimulating the production of oil from a producing well

Patent · Tue May 23 04:00:00 EDT 1978

OSTI ID:6870634

Maly, G P; Landess, J A; Foral, T

A method and solvent composition for removing viscous crude oil, waxes, asphaltenes and resin precipitates of petroleum 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 aliphatic hydrocarbonn boiling in the range of about 120 to about 550/sup 0/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.

• Assignee: Union Oil Co.
• Patent Number(s): US 4090562
• OSTI ID: 6870634
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALCOHOLS
AROMATICS
CLEANING
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
ETHERS
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROLEUM
PIPELINES
SOLVENTS
WELLS