Laundering of oil base mud cuttings

Details Laundering of oil base mud cuttings Laundering of oil base mud cuttings

1976-01-15

1977-08-09

Guynn, Herbert B.

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 2, 134 40, 175 66, 175206, 252 85R, B08B 700

Patent

active

040408663

ABSTRACT:
A process for removing oil base mud adhering to cuttings obtained in well drilling operations, comprising contacting the cuttings with a solvent consisting essentially of a mixture of ethyleneglycol monoisobutyl ether, diethyleneglycol monobutyl ether acetate, ethyl butyl ketone, ethyleneglycol monobutyl ether, ethyleneglycol monomethyl ether acetate, diethyleneglycol diethyl ether, and diethyleneglycol mono-n-hexyl ether, together with paraffin oil, in relative proportions of from 10:90 to 80:20. This forms a mixture of oil and solvent on the cuttings which is readily removable; as by washing or centrifuging or a combination of the two.

REFERENCES:
patent: 3131759 (1964-05-01), Slusser et al.
patent: 3254718 (1966-06-01), Dunlap
patent: 3688781 (1972-09-01), Talley
patent: 3693733 (1972-09-01), Teague
Frick, Petroleum Production Handbook, vol. II, "Reservoir Engineering," 1962, pp. 23-26.
Stearns et al., Baroid News Bulletin, "A Neat Solution to Nordzee Polution," 1972, pp. 10-15.
Oil and Gas Journal, "Cuttings Can Meet Offshore Environment Specifications," Aug. 14, 1972, pp. 73-76.

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