CHARACTERIZATION OF AN API GRAVITY VALUE OF CRUDE OIL BY ULTRAVIOLET VISIBLE SPECTROSCOPY

摘要

A system and a method for characterizing a crude oil sample from the weight and ultraviolet visible spectroscopy of the sample, including calculating and assigning a crude oil ultraviolet visible index and using the assigned index to calculate and assign an API gravity and/or to calculate and assign an aromaticity value of the sample.

主权项

1. A system for characterizing an API gravity value of an oil sample based upon ultraviolet visible spectroscopy data derived from the sample, the system comprising:
a non-volatile memory device that stores calculation modules and data, the data including ultraviolet visible spectroscopy data indicative of absorbance values over a range of wavelengths; a processor coupled to the memory; a first calculation module that calculates and assigns an index value for the oil sample based upon the ultraviolet visible spectroscopy data; and a second calculation module that calculates and assigns the API gravity value of the oil sample based upon the assigned index value.