Monitoring the effects of thermal maturity on NSO compounds in Arabian crude oils by high resolution mass spectrometry

C. E. West, H. Muller, K. Arouri, S. Inan, A. Fuhrmann

Araştırma sonucu: Kitap/Rapor/Konferans Bildirisinde BölümKonferans katkısıbilirkişi

Özet

This study applied high resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICRMS), to examine the effect of varying thermal maturity level on NSO compounds in a well constrained suite of related crude oils. These oils are derived from a common marine carbonate source rock, and span most of the liquid petroleum generating portion of the oil window (0.61 – 1.15% vitrinite reflectance equivalent (%Re)). The oil suite was analyzed directly, i.e., without fractionation, using electrospray ionization (ESI) in positive-ion mode, for basic polar compound species (comprising nitrogen, sulfur, and oxygen (NSO) heteroatom containing organic compounds). Significant compositional and distributional changes in NSO compound classes were detected with increasing oil maturity level. In particular, the relative abundance of nitrogen (N1) and nitrogen-sulfur (N1S1) containing compounds detected herein, were found to decrease systematically with higher oil maturation levels. Observed compositional changes and trends were correlated against existing bulk property and conventional biomarker maturity parameters, obtained for the same samples. From these correlations we were able to derive several novel NSO compound parameters with potential as new geochemical indicators for maturity level estimation of crude oils generated from marine carbonate sources.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığı2nd EAGE Workshop on Geochemistry in Petroleum Operations and Production
YayınlayanEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Elektronik)9789462822764
DOI'lar
Yayın durumuYayınlandı - 2018
Etkinlik2nd EAGE Workshop on Geochemistry in Petroleum Operations and Production - Muscat, Oman
Süre: 1 Eki 201824 Eki 2018

Yayın serisi

Adı2nd EAGE Workshop on Geochemistry in Petroleum Operations and Production

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???event.eventtypes.event.conference???2nd EAGE Workshop on Geochemistry in Petroleum Operations and Production
Ülke/BölgeOman
ŞehirMuscat
Periyot1/10/1824/10/18

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Publisher Copyright:
© 2018 European Association of Geoscientists and Engineers, EAGE. All rights reserved.

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