志丹油田纸坊北油区三叠系延长组长6-长9储层致密史与油藏成藏史研究

doi:10.13686/j.cnki.dzyzy.2023.03.009

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Abstract The diagenetic densification process of sandstone reservoir is restored and pore evolution law of sandstone in each horizon is established through the study of Chang 6-Chang 9 reservoirs in North Zhifang area of Zhidan Oilfield. The oil charging period and time of Chang 6-Chang 9 oil groups, as well as the accumulation history of oil reservoir in the area, are determined on the basis of analysis on homogenization temperature of fluid inclusions and fluorescence spectrum test. The analysis of coupling relationship between diagenesis-densification-accumulation reveals that the Chang 6-Chang 9 reservoirs are characterized by densification before the hydrocarbon accumulation, which provides a theoretical basis for determination of the main controlling factors of accumulation and prediction of favorable areas in the future.

Key words： fluid inclusion compacting history accumulation history Yanchang Formation reservoir Zhidan Oilfield

Received: 13 September 2021

PACS:

P618.13

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	LIU Ling
	ZHANG Chuang
	SUN Ming

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LIU Ling,ZHANG Chuang,SUN Ming. COMPACTING AND ACCUMULATION HISTORY OF CHANG 6-CHANG 9 RESERVOIRS FROM THE TRIASSIC YANCHANG FORMATION IN ZHIDAN OILFIELD[J]. GEOLOGY AND RESOURCES, 2023, 32(3): 327-334.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2023.03.009 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2023/V32/I3/327

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