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:
Apr. 22, 2014
Filed:
Jun. 09, 2008
Marc N. Lehmann, Houston, TX (US);
Faezeh F. Firouzkouhi, Sugar Land, TX (US);
Michael P. Squicciarini, Richmond, TX (US);
Tauseef Salma, Sugar Land, TX (US);
Marc N. Lehmann, Houston, TX (US);
Faezeh F. Firouzkouhi, Sugar Land, TX (US);
Michael P. Squicciarini, Richmond, TX (US);
Tauseef Salma, Sugar Land, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A homopolymer of a monomer selected from those having the general formula: wherein: R1 is H or CH3; R2 is H or an alkyl group having from 1 to about 4 carbon atoms; A is a straight or branched chain alkyl group having from 1 to 10 carbon atoms; and R3, R4, and R5 each are independently an alkyl group having from 1 to 6 carbon atoms; or a copolymer of such monomers as acrylate, acrylamide or methacrylamide may be used to disperse metal sulfides prior to their forming scales during the production and transportation of crude oil. Terpolymers of dimethyldiallylammonium salt, 2-hydroxypropyl acrylate; and acrylic acid may also be used for this purpose. The production fluid may also be treated with a compound that promotes the formation of dispersible sulfide scales.