Methods, apparatus and articles of manufacture to process...

G - Physics – 01 – V

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G01V 11/00 (2006.01) G01N 11/16 (2006.01)

Patent

CA 2755506

Example methods, apparatus and articles of manu-facture to process measurements of wires vibrating in fluids are disclosed. A disclosed example apparatus includes a downhole assembly and a surface assembly. The downhole assembly 300 in-cluding a sensor 305, 325 to measure a waveform representative of a motion of a wire vibrating within a fluid at a downhole loca-tion i a wellbore, a waveform modeler 332 to compute a model parameter from the measured waveform, and a first telemetry module 340 to transmit the computed model parameter to a sur-face location. The surface assembly including a second telemetry module to receive the computed model parameter from the down-hole assembly, and a viscosity analyzer to estimate a viscosity of the fluid from the computed model parameter.

La présente invention concerne des procédés, des appareils et des articles de fabrication pour traiter des mesures de fils vibrant dans des fluides. Un appareil exemplaire comprend un ensemble de fond et un ensemble de surface. L'ensemble de fond comprend : un capteur pour mesurer une forme d'onde représentative d'un mouvement de fil vibrant dans un fluide au niveau d'un emplacement de fond dans un forage ; un modeleur de forme d'onde pour calculer un paramètre modèle à partir de la forme d'onde mesurée ; et un premier module de télémétrie pour transmettre le paramètre modèle calculé à une position de surface. L'ensemble de surface comprend un second module de télémétrie pour recevoir le paramètre modèle calculé provenant de l'ensemble de fond, et un analyseur de viscosité pour estimer une viscosité du fluide à partir du paramètre modèle calculé.

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