松辽盆地西部斜坡区上二叠统林西组生烃潜力评价——来自吉白地2井的证据

doi:10.13686/j.cnki.dzyzy.2021.03.015

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Abstract The paper studies the development and organic geochemical characteristics of source rocks from Upper Permian Linxi Formation in JBD-2 well in central western slope of Songliao Basin. The results show that dark mudstone and slate are developed with the maximum thickness of 29 m for single layer and cumulative thickness of 138.42 m. With high organic abundance, TOC of 0.01%-2.10% (averagely 0.62%), the formation generally belongs to medium grade source rock. Applying the carbon isotope and element composition of kerogen for comprehensive analysis, it is inferred that the organic type is II-type kerogen dominated, with III-type kerogen partly. The analyses of vitrinite reflectance(R_o) and illite crystallinity indicate the thermal evolution of source rocks reaches the high mature-over mature stage, and the whole is in the diagenesis stage. It is concluded from comprehensive evaluation that the Upper Permian Linxi Formation has certain hydrocarbon generation potential, mainly gas, and certain prospect for shale gas resource.

Key words： hydrocarbon generation potential source rock Upper Permian Linxi Formation Songliao Basin

Received: 15 December 2020

PACS:	P618.13
	P534.46

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	Articles by authors
	SUN Lei
	CHEN Shu-wang
	ZHANG Jian
	SU Fei
	BIAN Xiong-fei
	ZHANG Hai-hua

Cite this article:

SUN Lei,CHEN Shu-wang,ZHANG Jian等. EVALUATION ON THE HYDROCARBON GENERATION POTENTIAL OF UPPER PERMIAN LINXI FORMATION IN WESTERN SLOPE OF SONGLIAO BASIN: Evidence from JBD-2 Well[J]. GEOLOGY AND RESOURCES, 2021, 30(3): 333-340,332.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2021.03.015 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2021/V30/I3/333

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