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A method for removing paraffin from a producing oil well comprising (a) contacting a mixture of a paraffin-dispersing effective amount of an alkyl or aralkyl polyoxyalkylene phosphate ester surfactant in the free acid form, or in the form of the alkali metal, amine, or ammonium salt, a mutual solven

A method for removing paraffin from a producing oil well comprising (a) contacting a mixture of a paraffin-dispersing effective amount of an alkyl or aralkyl polyoxyalkylene phosphate ester surfactant in the free acid form, or in the form of the alkali metal, amine, or ammonium salt, a mutual solvent and water, said mixture having a temperature of from about 30°to 40°F. higher than the melting point of the paraffin to be removed, with the interior of the oil well for a period of time sufficient to disperse paraffin within the well into the mixture; and (b)removing the mixture and the paraffin dispersed therein from the interior of the well.

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A method for removing paraffin from a producing oil well comprising the steps of: a. preparing a mixture of a paraffin-dispersing effective amount of an alkyl aralkyl polyoxyalkylene phosphate ester surfactant in the free acid form, or in the form of the alkali metal, amine, or ammonium salt; a mutu

A method for removing paraffin from a producing oil well comprising the steps of: a. preparing a mixture of a paraffin-dispersing effective amount of an alkyl aralkyl polyoxyalkylene phosphate ester surfactant in the free acid form, or in the form of the alkali metal, amine, or ammonium salt; a mutual solvent composed of a blend of an alcohol selected from the group consisting of aliphatic alcohols, glycols, polyglycols and glycol esters and mixtures thereof and an aromatic hydrocarbon selected from the group consisting of benzene, toluene, and xylene, and water and heating said mixture to a temperature of from about 30°to 40°F. higher than the melting point of the paraffin to be removed to form a micelle wherein the micelle mixture contains from about 8 to 35 weight percent of the phosphate ester surfactant, from about 65 to 95 weight percent of the mutual solvent, and from about 70 to 90 weight percent of water; b. contacting said micelle mixture with the interior of the oil well for a period of time sufficient to disperse paraffin within the well into the mixture; and c. removing the mixture and the paraffin dispersed therein from the interior of the well.