The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 1977
Filed:
Jan. 15, 1976
Applicant:
Inventor:
Thomas C Mondshine, Houston, TX (US);
Assignee:
N L Industries, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 26 ; 134-2 ; 134 40 ; 175 66 ; 175206 ; 252 / ;
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.