Oil & Gas Geology ›› 2008, Vol. 29 ›› Issue (4): 453-459.doi: 10.11743/ogg20080406

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Direction for future oil & gas exploration in SINOPEC's exploration area in the Junggar Basin

Song Chuanchun1, Peng Yongmin2, Qiao Yulei1,3, Shi Haoguo1, Wang Shuhua1,4, Zhuang Wenshan5   

  1. 1. Geophysical Research Institute of SINOPEC Shengli Oilfield Company Ltd., Dongying, Shandong 257022, China;
    2. Key Lab of CNPC Geophysical Exploration, China University of Petroleum, Beijing 102200, China;
    3. Guangzhou Institute of Geochemistry, CAS, Guongzhou, Guangdong 510640, China;
    4. Ocean Unitersity of China, Qingdao, Shandong 266100, China;
    5. Xinjiang Exploratiorz and Production Research lastitute of SINOPEC Shengli Oil Company Ltd., Urumqi, Xinjioag 830011, China
  • Received:2008-05-03 Online:2008-08-24 Published:2012-01-16

Abstract:

SINOPEC' s exploration area in the Junggar Basin is characterized by small acreage,deep burial of reservoirs and scattering of blocks,causing difficulties in exploration.Exploration results show that it is challenging to correlate the main oil layers discovered in the study area with that in the adjacent oilfields of CNPC Xinjiang Oilfield Company.The major oil layers mostly occur at a higher horizon than the designed targets.It is believed that there possibly exist four horizontal and four vertical plays in the Jungar Basin.These plays are thought to have different characteristics and their distributions can be related to the orientations of deep faults and the locations of traps.Their levels of hydrocarbon enrichment might be related to the location of hydrocarbon kitchens and the stratigraphic positions of the source rocks,especially the carrier system formed by the unconformities and the source rock-rooted faults.The analyses of petroleum geological characteristics,reservoiring conditions,and main types of oil reservoir,reveal that the exploration in the study area shall take stratigraphic-lithologic reservoirs in the western margin as the primary targets,and that in Huaizhong block as the second targets,while the stratigraphic-structural reservoirs in the northern margin and Qingelidi Mountain block as the future exploration targets.

Key words: characteristics of hydrocarbon accumulation, play, idea of exploration, Junggar Basin

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