| US 7,598,487 B2 | ||
| Micro-hydrocarbon analysis | ||
| Kuangnan Qian, Belle Mead, N.J. (US); William N. Olmstead, Basking Ridge, N.J. (US); Jason B. English, Roswell, N. Mex. (US); Larry A. Green, Mickleton, N.J. (US); Roland B. Saeger, Runnemede, N.J. (US); and Stephen B. Jaffe, Moorestown, N.J. (US) | ||
| Assigned to ExxonMobil Research and Engineering Company, Annandale, N.J. (US) | ||
| Filed on Nov. 14, 2006, as Appl. No. 11/598,873. | ||
| Claims priority of provisional application 60/738749, filed on Nov. 22, 2005. | ||
| Prior Publication US 2007/0114377 A1, May 24, 2007 | ||
| Int. Cl. G01N 30/02 (2006.01); G01N 31/00 (2006.01) | ||
| U.S. Cl. 250—282 [702/22; 73/23.35] | 24 Claims |
| 1. A method to determine the model-of-composition of a petroleum or hydrocarbon sample from a small sample of said petroleum
or hydrocarbon sample comprising
a) obtaining measurements by analyzing the whole small sample absent separation into fractions with a combination of chromatograph
and mass spectromer,
b) quantifying output from step a) by applying response factors and normalizing petroleum or hydrocarbon classes to that measured
by super critical fluid chromatography or other chromatographic techniques,
c) reconciling the output from step b) with other analytical measurements that determine hydrocarbon and petroleum properties
to obtain a model-of-composition of the petroleum or hydrocarbon sample.
|