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:
Jul. 10, 2007
Filed:
Jul. 30, 2002
Alberto Di Lullo, Sirmione, IT;
Sebastiano Correra, San Donato Milanese, IT;
Vittorio Rota, San Donato Milanese, IT;
Gilberto Toffolo, San Foca, IT;
Martin Bartosek, Legnano, IT;
Alberto Di Lullo, Sirmione, IT;
Sebastiano Correra, San Donato Milanese, IT;
Vittorio Rota, San Donato Milanese, IT;
Gilberto Toffolo, San Foca, IT;
Martin Bartosek, Legnano, IT;
ENI S.p.A., Rome, IT;
Enitechnologie S.p.A., San Donato Milanese, IT;
Abstract
The present invention deals with a method which allows to determine the wall friction profile along pipes transporting liquids, particularly petroleum industry liquids, by measuring the pressure transients induced by fast changes in the flow rate. This method is applicable to pipes in which the discharge pressure is greater then the bubble point of the transported liquid and, in any case, when free gas is absent in the pipe.