Method for stimulating wells completed in oil bearing earth form

Details Method for stimulating wells completed in oil bearing earth form Method for stimulating wells completed in oil bearing earth form

1974-10-29

1976-07-20

Guynn, Herbert B.

Wells

Processes

Placing fluid into the formation

166304, 252 855B, 252 855C, E21B 4327

Patent

active

039701484

ABSTRACT:
A method for cleaning and stimulating an oil, gas or injection well, in which wax, tar and/or bituminous materials are either already deposited or would be precipitated by the injection of an acidizing solution consisting of a mixture of an octanol and a lower alcohol with an aqueous acid solution, involving the injection of an aromatic solvent either before and/or after the alcohol-acidizing solution. To enhance the interfacial miscibility of the aromatic solvent and the alcohol-acidizing solution, a small amount of amine having no more than eight carbon atoms may be added to the aromatic solvent. This method is useful in both production and injection wells.

REFERENCES:
patent: 2024718 (1935-12-01), Chamberlain
patent: 2124530 (1938-07-01), Loomis et al.
patent: 2356205 (1944-08-01), Blair et al.
patent: 3481404 (1969-12-01), Gidley
patent: 3819520 (1974-06-01), Jones et al.

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