西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (6): 53-56.DOI: 10.3863/j.issn.1674-5086.2010.06.011

• 地质勘探 • Previous Articles     Next Articles

CHARACTERISTICS AND OIL-SOURCE CORRELATION OF THE SOURCE ROCKS IN CHANGLING FAULT DEPRESSION,SONGLIAO BASIN

JIN Xiao-hui,YAN Xiang-bin,LI Li-na   

  1. Exploration and Production Reserrch Institute,SINOPEC,Haidian Beijing 100083,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20

Abstract: The geochemical characteristics analysis of the source rocks and crude oil sample in the Changling fault depression show that the Huoshiling Formation and Yingcheng Formation are the main source rocks,and they have a lower abundance of organic matters and the higher maturity.It belongs to III-type kerogen.The form characteristics of saturated hydrocarbon parameter,aromatic compounds and dibenzothiophene all indicate that the source rocks are formed in the weak oxidation-oxygen-free environment,which are lake facies with lightly saline-brackish water.The terrestrial higher plants are the primary provenance,and the lower aquatic organisms are the next.The distribution characteristics and correlation of the group composition,carbon isotope feature,tricyclic terpane,tetracycle terpane,hopanes and aromatic group all show that oil sources have a close genetic relationship with the hydrocarbon source rock of Yingcheng Formation.

Key words: source rock, oil-source correlation, Changling fault depression, SongLiao Basin

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