System And Method For Estimating Oil Formation Volume Factor Downhole

摘要

A system includes a downhole formation fluid sampling tool and a processor. An optical spectrometer of the downhole formation fluid sampling tool is able to measure an optical characteristic of a formation fluid flowing through the downhole formation fluid sampling tool over a plurality of wavelengths. The optical spectrometer generates optical spectra data indicative of this optical characteristic. The processor is designed to receive the optical spectra data generated by the optical spectrometer and to estimate a formation volume factor of the formation fluid based on the optical spectra data.

主权项

1. 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; andestimate a formation volume factor of the formation fluid based on the estimated composition and the de-colored optical spectra data.