Method of Characterizing Chemical Composition Of Crude Oil For Petroleum Processing
First Claim
1. A method of characterizing chemical composition of crude oil comprising:
- given a crude oil having certain crude oil characterization data, in a processor;
i) determining respective segment type and segment number range of classes of hydrocarbon constituent molecules based on physical and chemical property data on each class of hydrocarbon constituent molecules and on crude oil physical and chemical property data; and
ii) based on the certain crude oil characterization data, determining relative ratio of each class of hydrocarbon constituent molecules that forms a chemical composition representative of the given crude oil, such that the chemical composition of the given crude oil is characterized; and
displaying, as output to an end-user, the characterized chemical composition of the given crude oil.
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Abstract
A computer method of characterizing chemical composition of crude oil and crude oil blends, includes determining respective segment type and segment number range of selected classes of hydrocarbon constituent molecules based on physical and chemical property data on each class of hydrocarbon constituent molecules and on crude oil physical and chemical property data. The method determines relative ratio of each class of hydrocarbon constituent molecules that forms a chemical composition representative of the subject crude oil, and therefrom characterizes chemical composition of the subject crude oil. The method/system displays to an end-user, the characterized chemical composition of the subject crude oil. Based on the identified distribution functions and the relative ratio of each class of hydrocarbon constituent molecules, the method estimates chemical composition of the crude oil. Estimates of physical and chemical properties of the crude oil are then based on the estimated chemical composition.
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Citations
29 Claims
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1. A method of characterizing chemical composition of crude oil comprising:
given a crude oil having certain crude oil characterization data, in a processor; i) determining respective segment type and segment number range of classes of hydrocarbon constituent molecules based on physical and chemical property data on each class of hydrocarbon constituent molecules and on crude oil physical and chemical property data; and ii) based on the certain crude oil characterization data, determining relative ratio of each class of hydrocarbon constituent molecules that forms a chemical composition representative of the given crude oil, such that the chemical composition of the given crude oil is characterized; and displaying, as output to an end-user, the characterized chemical composition of the given crude oil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of blending crude oil, comprising the steps of:
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for each of two or more crude oil samples to form a blend, characterizing each of the crude oil samples by chemical composition and predicted physical and chemical properties, said characterizing resulting in respective characterizations of the two or more crude oil samples; based on said characterizations, determining respective ratios of the two or more crude oil samples, such that a resulting blend using the respective ratios of the sample crude oils has certain chemical composition and predicted physical and chemical properties; and forming the blend using amounts of the two or more sample crude oils in the determined respective ratios, wherein the step of characterizing each of the crude oil samples is by; for each crude oil sample as a given crude oil having certain crude oil characterization data, and in a processor, for the given crude oil; i) determining respective segment type and segment number range of classes of hydrocarbon constituent molecules based on physical and chemical property data on each class of hydrocarbon constituent molecules and on crude oil physical and chemical property data; and ii) based on the certain crude oil characterization data, determining relative ratio of each class of hydrocarbon constituent molecules that forms a chemical composition representative of the given crude oil, such that the chemical composition of the given crude oil is characterized; and iii) using the characterized chemical composition of the given crude oil, predicting physical and chemical properties of the given crude oil. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification