含油气盆地深部高过成熟烃源岩古<i>TOC</i>恢复方法及其应用

doi:10.7605/gdlxb.2014.06.062

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Abstract According to the change of residual hydrocarbon generation materials in the evolution process of source rocks,the geological conceptual model about the TOC recovery was restored, so it proposed a quantitative pattern between TOC evolution and the main controlling factors. Then through giving a certain value for each factor that calculated the TOC recovery coefficient, the TOC evolution charts for muddy source rocks and carbonate source rocks in the case of different kerogen types were made. The main characteristic of this method was able to avoid the deviation that subjective factors and physical simulation experiment conditions might lead to.The results were as follows:With the increasing of thermal evolution level,the residual TOC in source rocks reduced gradually in large hydrocarbon expulsion stages(R_O=0.5％～2.0%); the reduction amount was biggest for source rocks in high mature-over mature stage(R_O>1.2%); the recovery coefficient gradually increased with the increasing of R_O. The TOC recovery coefficients can respectively reached to 3.0,2.0, and 1.4 for muddy source rocks in case of kerogen types Ⅰ, Ⅱ, and Ⅲ;for carbonate source rocks,the TOC recovery coefficients were respectively 3.2,2.2, and 1.5. The practical applications of TOC recovery were exemplified in field.

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	Articles by authors
	Pang Xiongqi
	Li Qianwen
	Chen Jianfa
	Li Maowen
	Pang Hong

Key words： deep petroliferous basin high mature-over mature source rock recovery of TOC discriminant standard of effective source rock evaluation of effective source rock

Received: 12 September 2014 Published: 01 December 2014

ZTFLH:

TE122.1+13

About author: Pang Xiongqi,born in 1961,is a professor in China University of Petroleum(Beijing). Now he is mainly engaged in hydrocarbon accumulation mechanisms and resource evaluation. E-mail: pangxq@cup.edu.cn.

Cite this article:

Pang Xiongqi,Li Qianwen,Chen Jianfa et al. Recovery method of original TOC and its application in source rocks at high mature-over mature stage in deep petroliferous basins[J]. JOPC, 2014, 16(6): 769-789.

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http://journal09.magtechjournal.com/gdlxb/EN/10.7605/gdlxb.2014.06.062 OR http://journal09.magtechjournal.com/gdlxb/EN/Y2014/V16/I6/769

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