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:
May. 23, 2023
Filed:
Dec. 18, 2020
Openfield, Versailles, FR;
Eric Donzier, Bercheres sur Vesgre, FR;
Linda Abbassi, Katy, TX (US);
Emmanuel Tavernier, Paris, FR;
OPENFIELD, Versailles, FR;
Abstract
A flowmeter measures a fluid velocity and/or direction of a moving multiphase fluid within a hydrocarbon well. The flowmeter includes a microwave front end module comprising transmit and receive antennas and a microwave circuit. The transmit antenna transmits electromagnetic signals towards the fluid at a high frequency ranging from 10 to 100 GHz. The flowmeter includes an analog electronics module converting an analog doppler signal successively into an amplified analog doppler signal and a digital doppler signal. The flowmeter includes a digital processing module comprising a Fast Fourier Transform algorithm for processing the digital doppler signal into a Doppler frequency spectrum. The Doppler spectrum contains information indicative of the fluid velocity and/or direction. A protective shell protects the modules from multiphase fluid. The protective shell comprises a first part positioned over the antennas and being transparent to electromagnetic signals, and a second part being opaque to electromagnetic signals.