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:
Jun. 18, 2002
Filed:
Mar. 27, 2000
Michel Berard, Palaiseau, FR;
Gerard Segeral, Gif sur Yvette, FR;
Schlumberger Technology Corporation, Ridgefield, CT (US);
Abstract
The invention relates to a flow rate measurement method adapted to oil effluents made up of multiphase fluid mixtures comprising water, oil, and gas. The effluent is passed through a Venturi in which the effluent is subjected to a pressure drop (&Dgr;p), a mean value (<&Dgr;p>) of the pressure drop is determined over a period t corresponding to a frequency f that is low relative to the frequency at which gas and liquid alternate in a slug flow regime, a mean value (<&rgr; >) is determined for the density of the fluid mixture at the constriction of the Venturi over said period t , and a total mass flow rate value <Q> is deduced for the period t under consideration from the mean values of pressure drop and of density.