Method and apparatus for downhole fluid characterization using flexural mechanical resonators

摘要: The present invention provides a downhole method and apparatus using flexural mechanical resonator, for example, tuning fork (410) to provide real-time direct measurements estimates of the viscosity, density dielectric constant formation fluid or filtrate in hydrocarbon producing well. additionally monitoring cleanup from leveling off viscosity over time, measuring estimating bubble point fluid, dew determining onset asphaltene precipitation. also intercalibration plural pressure gauges used determine differential downhole.