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. 17, 1995
Filed:
Oct. 15, 1993
Applicant:
Inventors:
Alberto Del Bianco, Magenta, IT;
Fabrizio Stroppa, San Giuliano Milanese, IT;
Assignees:
AGIP S.p.A., Milan, IT;
Eniricerche S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585 24 ; 585 25 ; 585 26 ;
Abstract
Particular hydrocarbon composition constituted by saturated species, alkylbenzenes and polyaromatics, useful for dissolving asphaltenic residues present in oil wells. Such useful hydrocarbon blends for dissolving asphaltenic residues present in oil wells, are characterized in that said blends are essentially constituted by a composition selected from those which, on a ternary chart, in which the vertex (A) represents 100% of polyaromatics with z<-6, the vertex (B) represents 100% of saturated species, and the vertex (C) represents 100% of alkylbenzenes with z=-6, are comprised between: