Lithologic Reservoirs ›› 2012, Vol. 24 ›› Issue (2): 72-76.doi: 10.3969/j.issn.1673-8926.2012.02.014

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Characteristics and significance of petrology of Changxing Formation in Yuanba area, northeastern Sichuan

WU Qilin1， FU Heng2， LI Xiuhua2， HAN Dingkun3， HUANG Yong3， DUAN Jinbao3   

  1. 1. Department of Geophysics， CNOOC Energy Technology & Services Limited， Zhanjiang 524057， China； 2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Chengdu University of Technology， Chengdu 610059， China； 3. Sinopec Exploration Southern Company， Chengdu 610059， China
  • Online:2012-04-20 Published:2012-04-20

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Abstract:

Based on thin section collection and microscope observation by six wells of Changxing Formation in Yuanba area, 30 types of rocks and four types of sediment sources were identified. Radiolarian chert was identified firstly in this area，which is the evidence of the existence of deep-sea sedimentary environment in early Changxing Formation.

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