东营凹陷沙四下亚段-孔店组储层流体包裹体特征及油气充注期次

doi:10.3981/j.issn.1000-7857.2014.32.009

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Abstract: The lower section of the 4th member of the Shahejie formation and Kongdian formation (Es₄^x-Ek) in the deeper Dongying depression are supersedure strata of oil and gas exploration. Based on the observation of microscopic fluorescence and homogenization temperature test of fluid inclusions and in combination with the simulation of burial and thermal history, the hydrocarbon charging characteristics of Es₄^x-Ek reservoirs are analyzed. The result shows that Es₄^x-Ek reservoirs in the south slope of Dongying depression experienced one stage of hydrocarbon charging, which is from the Minghuazhen to the present day. However, the Es₄^x-Ek reservoirs in the north slope experienced three stages of hydrocarbon charging, which are the 3rd member of Shahejie period, Guantao period, and Minghuazhen to the present day. The burial depth of the north slope is deeper than that of the south slope. The oil source of Es₄^x-Ek reservoirs in the south slope is overlying Es₃^x and Es₄^x source rocks, whereas the oil source of the north slope contains Es₄^x source rock. The different geological backgrounds, oil sources, and source-reservoir combination patterns lead to the significant differences of hydrocarbon charging characteristics between the south and the north slopes.

Key words： fluid inclusion homogenization temperature hydrocarbon charging history redbeds Dongying depression

Received: 16 June 2014

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	MENG Jianghui
	LIU Luofu
	GAO Yongjin

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MENG Jianghui,LIU Luofu,GAO Yongjin. Fluid Inclusion Characteristics and Hydrocarbon Charging Stages of the Lower Section of 4^th Member of Shahejie Formation and Kongdian Formation in the Dongying Depression[J]. Science & Technology Review, 2014, 32(32): 54-59.

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http://www.kjdb.org/EN/10.3981/j.issn.1000-7857.2014.32.009 OR http://www.kjdb.org/EN/Y2014/V32/I32/54

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