塔中隆起区中-下奥陶统顶不整合面油气运移分析和勘探潜力评价

doi:10.11743/ogg20070613

Abstract

Abstract:

Taking the top of the Middle-Lower Ordovician unconformity as the target,the source rocks in the Middle-Lower Cambrian and the Middle-Lower Ordovician were selected for their oil and gas contributions to establish hydrocarbon migration patterns.As the Middle-Lower Cambrian source rock is far from the top of the Middle-Lower Ordovician unconformity vertically,most of the hydrocarbons migrated vertically and distributed along the faults.While for the Middle-Lower Ordovician source rock,the invasion-percolation theoretical model was applied to characterize its contribution to the top of the Middle-Lower Ordovician unconformity and revealed that the hydrocarbon migration there is mainly lateral.Based on a comprehensive analysis of contributions of these two sets of source rocks,the Tazhong area is considered to be a favorable area for the hydrocarbon exploration.

Key words: unconformity, hydrocarbon migration, exploration potential, central uplift, Tarim Basin

CLC Number:

TE132

Zhou Bo, Wang Yi, Luo Xiaorong, Yun Jinbiao, Zheng Menglin. Hydrocarbon migration and exploration potential in the unconformities at the top of the Middle-Lower Ordovician in the central uplift belt,the Tarim Basin[J]. Oil & Gas Geology, 2007, 28(6): 791-796.

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Hydrocarbon migration and exploration potential in the unconformities at the top of the Middle-Lower Ordovician in the central uplift belt,the Tarim Basin

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