Xinjiang Petroleum Geology

Xinjiang Petroleum Geology ›› 2009, Vol. 30 ›› Issue (3): 313-315.

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Geochemical Characteristics of Oil Bitumen in Ordos Basin

LI Hong-ying1,2, HE Ying2, YANG Lei3, PAN Ai-fang4   

  1. 1. Institute of Mineral Resources, Chinese Academy of Geosciences, Beijing 100037, China;
    2. Department of Geology, Northwest University, Xian, Shaanxi 710069, China;
    3. Research Center, CNOOC, Beijing 100027, China;
    4. College of Earth Science and Resources,Chang' an University, Xian, Shaanxi 710054, China
  • Received:2008-11-13 Online:2009-06-01 Published:2020-10-29

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Abstract: Geochemical characteristics of trace elements and rare earth element (REE) of oil bitumen in Ordos basin are studied, and results show that such oil bitumen is rich in trace elements of iron group, sulphur group and alkali metals, relative absence of REE and radioactive element. The REE is similar to those of upper crust and Chinese sedimentary rock, indicating that the original materials for forming oil in Ordos basin are not only from organic matter of upper crust, but also partly from deep materials.

Key words: Ordos basin, oil, bitumen, geochemistry

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