Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use
AssigneeNor Industries, Inc.
InventorsHarvey A. Furman, Kenneth R. Cioletti
Life of this patent
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Abstract
The use of high flash point, low vapor pressure compositions for injection into, and coating of, gas and oil wells and surrounding underground hydrocarbon bearing formations and processing equipment for the purpose of removing scale, paraffins, tars, and other viscous constituents. Treatment results in increased flow of gas and/or oil and decreased adhesion of soils and scale in all aspects of oil and gas recovery, including hydrocarbon bearing formations, casings, lines, and pumping equipment. The composition contains about 40 to 99 wt. % of a fatty acid alkyl ester blend and about 1 to 25 wt. % of at least one lower alkyl glycol ether.
Claims29
A method for removing and preventing the buildup of paraffin, tars, heavy oil, calcium carbonate, iron oxide and other soils and scales, from gas or oil wells, hydrocarbon bearing formations, or recovery, pumping, storage, or transmission equipment, comprising introducing into said well, formation, or equipment a composition comprising about 40 to 99 wt % of a fatty acid alkyl ester blend and about 1 to 25 wt % of at least one lower alkyl glycol ether.
Dependencies are inferred from the claim text.