Compositions – Leather or fur treating
Patent
1980-07-21
1982-03-30
Guynn, Herbert B.
Compositions
Leather or fur treating
166312, 299 5, E21B 4300
Patent
active
043223079
ABSTRACT:
Process for treating a well penetrating a subterranean formation which is productive of sour gas in order to alleviate sulfur deposition. An alkyl naphthalene base sulfur solvent is circulated into the well and recovered from the well in admixture with the produced gas. The injected solvent comprises an alkyl naphthalene mixture containing C.sub.1 -C.sub.4 alkyl naphthalenes in an amount within the range of 70-90 weight percent and higher-boiling naphthalenes in an amount within the range of 5-15 weight percent. The sulfur solvent contains no more than a 10 weight percent of naphthalene and has an initial boiling point of at least 230.degree. C., a flash point greater than 101.degree. C., and a freezing point of less than 0.degree. C. The solvent mixture may be dissolved in a carrier oil for introduction into the well.
REFERENCES:
patent: 3070162 (1962-12-01), Barnard
patent: 3172473 (1965-03-01), Crowley et al.
patent: 3223156 (1965-12-01), Peter
patent: 3393733 (1968-07-01), Kuo et al.
patent: 3498887 (1970-03-01), McClintock et al.
patent: 3531160 (1970-09-01), Fisher
patent: 3909422 (1975-09-01), Sample
"Sulfur Plugging Whipped in Gas Wells", article in The Oil And Gas Journal, Apr. 17, 1967, pp. 113 and 114.
Guynn Herbert B.
Huggett Charles A.
Miller Lawrence O.
Mobil Oil Corporation
Powers, Jr. James F.
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