System And Method For Estimating Oil Formation Volume Factor Downhole

A system, comprising:

• a downhole formation fluid sampling tool configured for operation in a downhole environment;
• an optical spectrometer of the downhole formation fluid sampling tool, wherein the optical spectrometer is configured to measure an optical characteristic of a formation fluid flowing through the downhole formation fluid sampling tool over a plurality of wavelengths and configured to generate optical spectra data indicative of the optical characteristic;
• and
• a processor, configured to execute instructions disposed on a non-transitory, computer-readable medium to monitor or control operations of the system to:
• receive the optical spectra data generated by the optical spectrometer;
• estimate a composition of the formation fluid based on the optical spectra data;
• remove a color effect and a spectral offset from the optical spectra data to generate de-colored optical spectra data;
• and
• estimate a formation volume factor of the formation fluid based on the estimated composition and the de-colored optical spectra data.