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US 2016/0108729 A1Published application
Method and device for the concurrent determination of fluid density and viscosity in-situ
AssigneeHalliburton Energy Services, Inc.
InventorsGao Li, Michael T. Pelletier, Mark Anton Proett, James Masino
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Abstract
A measurement device and method for determining the density and viscosity of a fluid in a downhole environment from vibration frequencies of a sample cavity.
Claims20
A method for determining the density and viscosity of a fluid, comprising:
- receiving a fluid sample into a sample tube of a measurement device;
- determining a resonant frequency and Q value of the tube containing fluid;
- calculating a density of the fluid using the resonant frequency;
- calculating a viscosity of the fluid based on the density and Q value.
1 more element
A downhole tool comprising:
- a tube that receives a sample fluid having a density;
- a rigid pressure housing enclosing said tube and forming an annular area between said tube and said pressure housing;
- a vibration source attached to said tube;
- at least one vibration detector;
- and
- a measurement module electrically coupled to said vibration source and said vibration detector, wherein the measurement module is configured to measure resonance frequency and Q to determine a density and a viscosity of the sample fluid using frequency and amplitude measurements of the tube;
- wherein said vibration source excites the tube containing fluid into oscillation;
- and
- wherein said vibration detector measures such oscillation.
6 more elements
Dependencies are inferred from the claim text.