Method for removal of asphaltene depositions with amine-activate

Details Method for removal of asphaltene depositions with amine-activate Method for removal of asphaltene depositions with amine-activate

1981-04-22

1983-04-12

Novosad, Stephen J.

Wells

Processes

Dissolving or preventing formation of solid oil deposit

166305R, 166371, 134 40, 252855B, E21B 4325

Patent

active

043794904

ABSTRACT:
A method for treating and removing unwanted asphaltene deposits from oil and gas wells, surface equipment, flow lines, and pore spaces of oil-baring formations comprises treatment with an amine-activated aliphatic disulfide oil as an asphaltene solvent. In a preferred aspect, the aliphatic disulfide oil is a dialkyl disulfide oil and is activated by the addition of 10 weight percent of diethylamine. In a specific use, the activated disulfide oil is used to remove asphaltene deposits from an oil-bearing formation and a producing well penetrating the formation.

REFERENCES:
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patent: 3314999 (1967-04-01), Bapseres et al.
patent: 3558509 (1971-01-01), Wiewiorowski
patent: 3563315 (1971-02-01), Claytor, Jr. et al.
patent: 3689319 (1972-09-01), Sample, Jr. et al.
patent: 3846311 (1974-11-01), Sharp et al.
patent: 4290900 (1981-09-01), Sharp et al.
Brown et al., "Low-Cost Way to Treat High Mercaptan Gasoline", The Oil and Gas Journal, Oct. 26, 1959, vol. 57, pp. 73-78.

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