Chemometric Classification and Geochemistry of Crude Oils in the Eastern Fukang Sag, Junggar Basin, NW China

Erting Li, Yan Li, Baoli Xiang, Dujie Hou (), Julei Mi, Xu Han, Yu Zhang and Xiuwei Gao
Additional contact information
Erting Li: Research Institute of Experiment and Testing, Karamay 834000, China
Yan Li: School of Energy Resources, China University of Geosciences, Beijing 100083, China
Baoli Xiang: Research Institute of Experiment and Testing, Karamay 834000, China
Dujie Hou: School of Energy Resources, China University of Geosciences, Beijing 100083, China
Julei Mi: Research Institute of Experiment and Testing, Karamay 834000, China
Xu Han: School of Energy Resources, China University of Geosciences, Beijing 100083, China
Yu Zhang: Research Institute of Experiment and Testing, Karamay 834000, China
Xiuwei Gao: Research Institute of Experiment and Testing, Karamay 834000, China

Energies, 2022, vol. 15, issue 23, 1-21

Abstract: Thirty oil samples collected from the eastern Fukang Sag were analyzed geochemically for their biomarkers and carbon isotopic compositions. The chemometric methods of principal component analysis and hierarchical cluster analysis, employed to thirteen parameters indicating source and depositional environment, classified the oil samples into three genetically distinct oil families: Family A oils were mainly derived from lower aquatic organisms deposited in a weakly reducing condition of fresh–brackish water, Family B oils came from a source containing predominantly terrigenous higher-plant organic matter laid down in an oxidizing environment of fresh water, and Family C oils received sources from both terrigenous and marine organic matter deposited in a weakly oxidizing to oxidizing environment of brackish water. Indirect oil–source correlations implied that Family A oils were probably derived from Permian source rocks, Family B oils originated mainly from Jurassic source rocks, and Family C oils had a mixed source of Carboniferous and Permian. Biomarker maturity parameters revealed that all three families of oils were in the mature stage. However, Family A oils were relatively less mature than Family B and Family C oils.

Keywords: biomarkers; carbon isotopic composition; principal component analysis; hierarchical cluster analysis; oil family classification; Fukang Sag (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/23/8921/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/23/8921/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:23:p:8921-:d:984140

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().