Characteristics of Paleogene Whole Petroleum System and Orderly Distribution of Oil and Gas Reservoirs in South Lufeng Depression, Pearl River Mouth Basin

被引：0
|
作者：
Peng G. [1 ]
Pang X. [2 ,3 ]
Xu Z. [2 ,3 ]
Luo J. [2 ,3 ]
Yu S. [1 ]
Li H. [1 ]
Hu T. [2 ,3 ]
Wang C. [2 ,3 ]
Liu Y. [2 ,3 ]
机构：
[1] Shenzhen Branch of China National Offshore Oil Corporation Limited, Shenzhen
[2] State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing
[3] College of Geosciences, China University of Petroleum, Beijing
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2022年 / 47卷 / 07期
关键词：
conventional reservoir; Lufeng Depression; Paleogene oil and gas reservoir; petroleum geology; the whole petroleum system; unconventional reservoir;
D O I：
10.3799/dqkx.2022.253
中图分类号：
学科分类号：
摘要：
Many types of oil and gas resources have been developed in the Paleogene of Lufeng Depression, Pearl River Mouth Basin, especially the complex and reformed oil and gas reservoirs with various characteristics. It is difficult to explain the genetic mechanism and distribution law of oil and gas reservoirs by using the classical "petroleum system" theory. Based on the new concept of the whole petroleum system, in this paper it expounds their formation and distribution. It is found that during the tight evolution of Paleogene reservoirs, the two sets of source rocks of Wenchang Formation and Enping Formation provided three kinds of original hydrocarbon quantities: early discharged hydrocarbon, late discharged hydrocarbon and retained hydrocarbon in the source. Due to the diagenetic compaction difference, the sandstone reservoirs inside and around the source rock developed oil and gas free dynamic field, limited dynamic field and bound dynamic field, The coupling effect of three kinds of original hydrocarbon quantities and three dynamic fields in the whole oil and gas system forms an orderly distribution of "shale oil and gas, tight oil and gas and conventional oil and gas" from bottom to top. This understanding of regularity has important guiding significance for the distribution prediction and exploration of different types of oil and gas resources in the study area. © 2022 China University of Geosciences. All rights reserved.
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页码：2494 / 2508
页数：14
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