METHOD OF MONITORING A FLUID, USE OF A TRACER, AND TRACER COMPOSITION
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United States of America Patent
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Aug 12, 2021
app pub date -
Jun 27, 2019
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Jul 4, 2018
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Abstract
A method of monitoring a fluid is described comprising: introducing a tracer into the fluid and analysing the fluid to determine if the tracer is present in the fluid; characterised in that the tracer comprises luminescent carbon-based nanoparticles exhibiting a peak luminescence intensity at an emission wavelength of at least 500 nm. The method is in particular a method of monitoring a parameter of a hydrocarbon well, pipeline or formation. A use of a tracer and a tracer composition comprising carbon-based nanoparticles exhibiting a peak luminescence intensity at an emission wavelength of at least 500 nm are also described.
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