Distribution Characteristics and Exploration Significance of Ordovician Karst Reservoir in WesternMaigaiti Slope

Abstract

Abstract: Oil & gas reservoir has been discovered in Carboniferous and Devonian Systems in Maigaiti slope. Recently, it is found that Ordovician buried hill has favorable conditions for reservoir formation. This is a set of potential oil & gas strata, and it has great significance for exploration. The Ordovician has oil & gas source conditions for forming large-scale oil and gas reservoir. Two-dimensional and three-dimensional fine calibration, integration interpretation, and predictive analysis show that karst reservoir developed in Yingshan Formation buried hill of Ordovician, favorable reservoircap rock assemblages are formed by the karst buried hill of Ordovician Yingshan Formation and the shale in lower part of overlying Kepingtage Formation, Maigaiti slope has been in a favorable position of oil and gas migration and accumulation during the structural adjustment from north to south, oil and gas migration and accumulation match well

Key words: Maigaiti slope, Ordovician, Yingshan Formation buried hill, karst reservoir, exploration significance

CLC Number:

P618.13

Cui Haifeng, Wei Pingsheng, Zhang Nianchun, Meng Xiangxia and Tian Lei. Distribution Characteristics and Exploration Significance of Ordovician Karst Reservoir in WesternMaigaiti Slope[J]. China Petroleum Exploration, 2010, 15(6): 34-39,84,85.

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Distribution Characteristics and Exploration Significance of Ordovician Karst Reservoir in WesternMaigaiti Slope

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