Xinjiang Petroleum Geology ›› 2021, Vol. 42 ›› Issue (3): 353-363.doi: 10.7657/XJPG20210312

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Petroleum Exploration History and Enlightenment in Jiuquan Basin

XIANG Xin(), WEI Haoyuan, WEI Deqiang, GAO Xiang, ZHAO Wei, LEI Fuping, XIE Jingyu, REN Xueyao   

  1. Research Institute of Exploration and Development, Yumen Oilfield Company, PetroChina, Jiuquan, Gansu 735019, China
  • Received:2020-11-30 Revised:2020-12-22 Online:2021-06-01 Published:2021-05-27

Abstract:

Petroleum exploration in Jiuquan basin started in the 1920s. Experienced the exploration process from uplift to depression, fruitful results in petroleum exploration have been achieved. The article reviews the 81-year exploration history in Jiuquan basin, sort out the main idea, technical means, significant discoveries and experience in every stage. Petroleum exploration practices show that the exploration should be foucued on geological research, guided by geological theory and geological understanding, and should be supported by exploration technology. Guided by the theories for exploration of secondary hydrocarbon-bearing structural belts, a number of anticline reservoirs have been discovered. Geology and engineering are closely integrated to form a supporting exploration technology adaptable for Qingxi oilfield, helping Qingxi oilfield make breakthroughs in exploration. After deepening geological understanding and changing exploration ideas three times, a hydrocarbon accumulation model was established for the Ying’er sag and Jiudong oilfield was discovered. New progresses have been made successively due to fine exploration in existing oil blocks after highlighting fine geological research and applying new technologies and methods.

Key words: Jiuquan basin, exploration history, exploration result, exploration technology, exploration enlightenment, Qingxi oilfield, Jiudong oilfield

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