Laundering of oil base mud cuttings
Patent
·
OSTI ID:5326272
A process for removing oil base mud adhering to cuttings obtained in well drilling operations is claimed 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.
- Assignee:
- NL Industries, Inc.
- Patent Number(s):
- US 4040866
- OSTI ID:
- 5326272
- Country of Publication:
- United States
- Language:
- English
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