China Petroleum Exploration ›› 2018, Vol. 23 ›› Issue (6): 1-9.DOI: 10.3969/j.issn.1672-7703.2018.06.001

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Meso-Neoproterozoic geology and petroleum resources prospect in China

Wang Tieguan1, Gong Jianming2   

  1. 1 China University of Petroleum (Beijing);
    2 Academic Divisions, Chinese Academy of Sciences
  • Received:2018-09-12 Revised:2018-09-18 Online:2018-11-15 Published:2018-11-13
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Abstract: The Meso-Neoproterozoic strata dated back to 1800-541 Ma are the oldest sedimentary strata in China. Petroleum geologists never thought that hydrocarbon could be found within the Meso-Neoproterozoic strata, or took them as exploration targets since no reliable early lives and associated fossils were identified in these strata until the 1950s. In recent decades, however, paleontologists have made great achievements in the fundamental research on early Proterozoic lives, and petroleum geologists and geochemists also found numerous oil seeps, asphalts and source rocks with rich organic matters. These organic matters are in immature to over-mature phases, even still in the "liquid oil window" in some zones, so that dozens of primary Meso-Neoproterozoic oil and gas fields have been found with large amount of oil/gas reserves and high oil/gas flows, indicating that the Meso-Neoproterozoic strata have favorable conditions for generation and accumulation of large-scale petroleum resources.

 

Key words: Meso-Neoproterozoic, strata, biomarkers, geological features

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