Oil & Gas Geology ›› 2006, Vol. 27 ›› Issue (6): 779-785,803.doi: 10.11743/ogg20060608

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Formation conditions and prospecting technologies for subtle reservoirs in the Che-Mo palaeohigh of central Junggar basin

Wu Hengzhi, Meng Xianlong, Yang Jiangfeng   

  1. The West Branch of Research Institute of Petroleum Exploration and Production, SINOPEC, Urumqi, Xiangjiang, 830011
  • Received:2006-10-28 Online:2006-12-25 Published:2012-01-16

Abstract:

The central Junggar basin is dominated by monoclinal stractures.Despite the fact that the subtle reservoirs discovered in recent years are mostly stratigraphic and lithologic,the reservoir types show diversification,so are the main controlling factors of reservoiring in the basin.Analyzing from the angle of genesis,the carrier conditions of the sand formations,uncomformities,and fault in the central basin,control the distribution and enrichment of hydrocarbons. The Che-Mo palaeohigh developed in the central basin controls the adjustment and modification of the reservoirs.By summarizing the past experiences,a set of seismic recognition technologies that integrate seismic processing with interpretation and are guided by patterns are gradually developed for the exploration of frontiers in western China.

Key words: subtle reservoir, main controlling factor of reservoiring, prospecting technology, trap identification, Che-Mo palaeohigh, Junggar basin

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