Petroleum origin and accumulation in the rift basin: a case study from the Nanpu sag, Bohai Bay basin, China
The origin of oil reservoirs in four structural belts in the Nanpu sag, Bohai Bay basin, was studied on the basis of the results of Rock-Eval pyrolysis on 140 samples and biomarker analysis on 30 source rock samples and 43 oil samples. The three possible source rock intervals have different biomarke...
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| Veröffentlicht in: | Arabian journal of geosciences 2016-03, Vol.9 (3), p.1-12, Article 185 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The origin of oil reservoirs in four structural belts in the Nanpu sag, Bohai Bay basin, was studied on the basis of the results of Rock-Eval pyrolysis on 140 samples and biomarker analysis on 30 source rock samples and 43 oil samples. The three possible source rock intervals have different biomarker associations and were deposited in different environments. The third member of the Shahejie Formation (Es
3
) is characterized by relatively high gammacerane/αβ C
30
hopane (>0.09), high extended tricyclic terpane ratio (ETR) ([C
28
+ C
29
]/[C
28
+ C
29
+ Ts]) (>0.4)), low C
27
diasterane/sterane ( |
|---|---|
| ISSN: | 1866-7511 1866-7538 |
| DOI: | 10.1007/s12517-015-2248-y |