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1. (WO2016064419) FLUID VISCOMETER SUITABLE FOR DOWNHOLE USE

Pub. No.:    WO/2016/064419    International Application No.:    PCT/US2014/062199
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Sat Oct 25 01:59:59 CEST 2014
IPC: E21B 49/08
G01N 11/00
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: GAO, Li
PELLETIER, Michael, T.
MASINO, James, E.
Title: FLUID VISCOMETER SUITABLE FOR DOWNHOLE USE
Abstract:
An illustrative method for measuring a fluid viscosity that includes vibrating a tube containing a fluid of interest, obtaining a vibration signal from the vibrating tube, deriving a system energy loss rate measurement from the vibration signal, calculating an energy loss rate for the fluid of interest from the system energy loss rate measurement and a reference energy loss rate measurement, and generating a viscosity measurement of the fluid of interest based on the energy loss rate for the fluid of interest and a density of the fluid of interest.