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Method and apparatus for identifying fluid attributes

  • US 9,441,481 B2
  • Filed: 03/13/2013
  • Issued: 09/13/2016
  • Est. Priority Date: 06/29/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • measuring absorbance by a sample of a formation fluid at a plurality of wavelengths of electromagnetic radiation with a spectrometer; and

    distinguishing between multiple fluid types to identify a fluid type of the sample most likely to match an actual fluid type of the sample based on the measured absorbance at two or more wavelengths of the plurality of wavelengths,wherein distinguishing between the multiple fluid types comprises;

    comparing the measured absorbance at a first wavelength of the two or more wavelengths to the measured absorbance at a second wavelength of the two or more wavelengths,calculating an absorbance ratio based on the measured absorbance at the first wavelength and the measured absorbance at the second wavelength, andcomparing the calculated absorbance ratio to a set of benchmark data of calculated absorbance ratios for different types of formation fluids to identify the most likely fluid type of the sample.

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