Oil & Gas Geology ›› 1999, Vol. 20 ›› Issue (4): 311-315.doi: 10.11743/ogg19990409

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FORMATION CONDITIONS OF IMMATURE OIL IN CONTINENTAL BASINS

Cai Xiyuan, Feng Zihui   

  1. Research Institute of Exploration and Development, Daqing Petroleum Administration, Daqing, Helongjing
  • Online:1999-12-25 Published:2012-01-16

Abstract:

The immature source rocks of oil in China's continental basins mainly formed in big lake basins influenced By transgression, small fault-subsided lake and gypsum lake basins. Corresponding source materials were algae, desMonollinite related to terrigenous plant, the soluble asphaltene and non-hydrocarbon organic matter preserved in gypSolyte environment. Bacterial action was favourable for organic matter to be inverted into immature oil, and thermal effect was an important condition for the formation of immature oil.

Key words: continental basin, immature oil, sedimentary environment, kerogen, formation condition

CLC Number: