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AssigneesSyncrude Canada Ltd. In Trust for the Owners of, the Syncrude Project as such owners exist now and in the future
InventorsRICHARD PAPROSKI, NATHANIEL DIRK FLIM
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A method for predicting a solids content, boiling point information, and micro carbon residue content of an extra heavy oil test sample involves subjecting extra heavy oil calibration samples to T1-weighted T2 low-field NMR pulse sequences, and recording T1 and T2 relaxation information to generate a NMR calibration data set. A chemometric partial least squares calibration model is determined to relate the NMR calibration data set to reference values of properties of the calibration samples. Similarly, the extra heavy oil test sample is subjected to the NMR T1-weighted T2 low-field NMR pulse sequences, the resulting relaxation information is recorded to generate NMR test data. The properties of the test sample are predicted based on the PLS calibration model and the NMR test data. The test sample may be derived from a process stream for upgrading bitumen, and may contain significant amounts of solids and high boiling point hydrocarbons (e.g., >524° C.).
A method for predicting at least one property of an extra heavy oil test sample using an NMR instrument, wherein the at least one property comprises one or a combination of a solids content, boiling point information, and a micro carbon residue (MCR) content, the method comprising the steps of:
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