Xinjiang Petroleum Geology ›› 2007, Vol. 28 ›› Issue (2): 175-178.

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Migration Directions of Silurian Crude Oil in Tazhong Area

HUO Hong1,2, LIU Luo-fu1, XIE Qi-lai1, CHEN Yuan-zhuang1,2   

  1. 1. Key Laboratory of Oil-Gas Accumulation Mechanism, Ministry of Education, China Petroleum University, Beijing 102249, China;
    2. Research Institute of Petroleum Exploration and Development, Sinopec, Beijing 100083, China
  • Received:2006-06-06 Revised:2006-08-22 Online:2007-04-01 Published:2020-07-31

Abstract: Carbazole non-hydrocarbon compounds are used as tracers for investigation of Silurian oil migration direction in Tazhong area, Tarim basin. The results from their abundances, parameter variations indicate that the movable oil has unremarkable distillation efficiency of lateral migration and proximal feature similar to the Cambrian-Ordovician source rocks in Manxi area and slope of northern Tazhong area, with lateral migration directions towards Tazhong 47 from SE to S, and then Tazhong 11, Tazhong 12-50 and Tazhong 16 structures. Vertically, the movable oil migration of Silurian has a tendency from lower to upper sections. The process of the oil migration is controlled by regional structures and the direction of the oil migration is consistent with the strike of major faults of Silurian.

Key words: Tarim basin, Silurian, petroleum migration, carbazole compound

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