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:
Mar. 30, 1993
Filed:
Oct. 01, 1991
Bernardus A Oude Alink, St. Louis, MO (US);
Richard L Martin, St. Louis, MO (US);
James A Dougherty, Manchester, MO (US);
Benjamin T Outlaw, St. Louis, MO (US);
Petrolite Corporation, St. Louis, MO (US);
Abstract
A method is disclosed for volatile inhibition and transport of inhibitor in the volatile phase to produced liquids of corrosion in a gas lift process in which a lift gas is pumped into a well to facilitate petroleum production of the well. The method comprises introducing to the lift gas a corrosion-inhibiting amount of a dihydrothiazole of the formula ##STR1## wherein R, R', R', R'', and R.sup.4 are independently selected from among hydrogen and alkyl groups of up to about 3 carbon atoms, provided that the total number of carbon atoms of R, R', R', R'' does not exceed about 14.