Oil & Gas Geology ›› 2007, Vol. 28 ›› Issue (5): 610-614,633.doi: 10.11743/ogg20070511

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Exploration prospects of low-mature oil/gas in the shallow layers of the A'nan Sag,the Erlian Basin

Dong Yong, Ma Liqiao, Sun Fengxia   

  1. Hangzhou Institute of Petroleum Geology, RIPED, PetroChina, Hangzhou, Zhejiang 310023, China
  • Received:2007-07-13 Online:2007-10-25 Published:2012-01-16

Abstract:

Exploration prospect of low-mature oil/gas in shallow of A'nan sag of Erlian basin is discussed based on sedimentary environments,distribution of source rocks,and shallow fault systems.It is believed that thick low-mature source rocks are developed in the upper 1st member and 2nd member of Tengge'er Formation of the Lower Cretaceous and have certain potential for hydrocarbon generation;the shallow fault systems might act as the major vertical pathways for hydrocarbon migration;and the shallow large anticlines are favorable for large-scale hydrocarbon accumulation.Therefore,it is proposed to carry out a systematic study of exploration in the shallow 2nd member of Tengge'er Formation.

Key words: low-mature oil, source rock, shallow strata, A'nan Sag, Erlian Basin

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