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. 11, 2017
Filed:
Aug. 19, 2011
Reidar Barfod Schüller, Drøbak, NO;
Lene Amundsen, Porsgrunn, NO;
Pål Viggo Hemmingsen, Trondheim, NO;
Rainer Josef Hoffmann, Unterhaching, DE;
Reidar Barfod Schüller, Drøbak, NO;
Lene Amundsen, Porsgrunn, NO;
Pål Viggo Hemmingsen, Trondheim, NO;
Rainer Josef Hoffmann, Unterhaching, DE;
STATOIL PETROLEUM AS, Stavanger, NO;
Abstract
A method and apparatus for determining multiphase flow characteristics inside production equipment containing at least two fluids. A pulse of heat from a heat source adjacent to the production equipment is provided, and a thermal response to the pulse is measured at each of a plurality of temperature sensors located adjacent to the production equipment. The thermal response measurement includes a time constant obtained from a measured decline in the temperature after the pulse of heat has been provided. The measured thermal responses are used to determine parameters of a fluid contained in the production equipment in proximity to each of the temperature sensors. The determined fluid parameters are in turn used to determine multiphase flow characteristics.