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:
Jan. 07, 1997
Filed:
Apr. 28, 1995
William D Mansfield, Baker, LA (US);
Drew Chemical Corporation, Boonton, NJ (US);
Abstract
A method of inhibiting corrosion on metal surfaces and downhole equipment and above surface separation equipment from a mixture of brine and crude oil extracted from underground formations. The method comprises the injection on a periodic basis of an effective amount of an oxime compound having the formula: ##STR1## in which R.sub.1 and R.sub.2 are the same or different and are selected from hydrogen, lower alkyl groups of one to eight carbons or aryl groups. In addition to functioning as a corrosion inhibitor for the metal surfaces in contact with the mixture, the oxime compound is less susceptible to neutralization by contact with acidic species, and is less likely to emulsify the brine and crude oil mixture brought to the surface.