Measurement Of Water Chemistry By Altering The Resonant Frequency Of A Vibrating Element With Hydrophilic Hydrogels
AssigneeHalliburton Energy Services, Inc.
InventorsJames Martin Price, Christopher Michael Jones, Michel LeBlanc
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Abstract
A fluid sampling tool may include a fluid characterization device consisting of a densitometer, a viscometer, or a vibrating element, or a combination thereof and a polymer disposed in or around the fluid characterization device, wherein the polymer volume, density, or viscosity changes with an ionic stimulus. The fluid characterization device may be located within a bypass flow line of the sampling tool. A method of measuring pH and a method of monitoring at least two analytes at the same time using the fluid characterization devices are also discussed.
Claims20
A fluid sampling tool comprising:
- a fluid characterization device;
- and
- a polymer disposed in or around the fluid characterization device, wherein a polymer changes with a stimulus.
A method of measuring pH of a formation fluid comprising:
- lowering a fluid sampling tool downhole, the fluid sampling tool comprising:
- a fluid characterization device;
- and
- a polymer disposed in or around the fluid characterization device, wherein a polymer changes with a stimulus;
- pumping the formation fluid to expose it to the fluid characterization device and the polymer disposed in or around the fluid characterization device;
- measuring a change in the polymer;
- and
- calculating the pH.
Dependencies are inferred from the claim text.