冀中坳陷北部上古生界煤系烃源岩生烃特征及发育的主控因素

李熹微; 刘海涛; 宁才倍; 王元杰; 李奔; 陈红锦; 窦连彬; 韩红涛; 甘华军; 蒋恕; 王波; 伏莉莎; 田宁

doi:10.3799/dqkx.2024.123

Volume 50 Issue 5

May 2025

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Article Navigation > Earth Science > 2025 > 50(5): 1917-1932

Li Xiwei, Liu Haitao, Ning Caibei, Wang Yuanjie, Li Ben, Chen Hongjin, Dou Lianbin, Han Hongtao, Gan Huajun, Jiang Shu, Wang Bo, Fu Lisha, Tian Ning, 2025. The Hydrocarbon Generation Characteristics of the Upper Paleozoic Coaly Bearing Source Rocks and Its Main Controlling Factors in the North of the Jizhong Depression. Earth Science, 50(5): 1917-1932. doi: 10.3799/dqkx.2024.123

Citation:

Li Xiwei, Liu Haitao, Ning Caibei, Wang Yuanjie, Li Ben, Chen Hongjin, Dou Lianbin, Han Hongtao, Gan Huajun, Jiang Shu, Wang Bo, Fu Lisha, Tian Ning, 2025. The Hydrocarbon Generation Characteristics of the Upper Paleozoic Coaly Bearing Source Rocks and Its Main Controlling Factors in the North of the Jizhong Depression. Earth Science, 50(5): 1917-1932. doi: 10.3799/dqkx.2024.123

Citation:

Li Xiwei, Liu Haitao, Ning Caibei, Wang Yuanjie, Li Ben, Chen Hongjin, Dou Lianbin, Han Hongtao, Gan Huajun, Jiang Shu, Wang Bo, Fu Lisha, Tian Ning, 2025. The Hydrocarbon Generation Characteristics of the Upper Paleozoic Coaly Bearing Source Rocks and Its Main Controlling Factors in the North of the Jizhong Depression. Earth Science, 50(5): 1917-1932. doi: 10.3799/dqkx.2024.123

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The Hydrocarbon Generation Characteristics of the Upper Paleozoic Coaly Bearing Source Rocks and Its Main Controlling Factors in the North of the Jizhong Depression

doi: 10.3799/dqkx.2024.123

1.
Department of Exploration, PetroChina Huabei Oilfield Company, Renqiu 062552, China
2.
Research Institute of Petroleum Exploration & Development PetroChina, Beijing 100083, China
3.
Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences (Wuhan), Wuhan 430074, China
4.
Research Institute of Exploration and Development, PetroChina Huabei Oilfield Company, Renqiu 062552, China
5.
The Fourth Exploit Factory of PetroChina Huabei Oilfield Company, Langfang 065000, China

Received Date: 2024-10-14
Available Online: 2025-06-06
Publish Date: 2025-05-25

Abstract

Abstract

Jizhong depression is located in the west of Bohai Bay basin. Its Carboniferous-Permian coaly source rocks have great resource potential, of which related oil and gas reservoirs have been explored in Suqiao-Wen'an area in the depression. However, the hydrocarbon generation characteristics and petroleum resource potential of the coaly source rocks still remain unclear in the Jizhong depression, which seriously affects the oil and gas exploration. On the basis of previous research, in this paper it makes a detailed analysis of organic geochemical characteristics of the Carboniferous-Permian coaly source rocks. The hydrocarbon generation potential and mechanism of selected coaly source rocks from Taiyuan Formation and Shanxi Formation are also explored by the experiment of high temperature and high pressure hydrocarbon generation kinetics. The research shows that the organic abundance of coal source rocks in the study area is high, indicating good hydrocarbon generation potential. The organic matter types of Taiyuan Formation are mainly type II₂ and type II₁, and the organic matter types of Shanxi Formation are mainly type II₂ and type III, which are mostly in the mature stage.The oil and gas generation capacity of Taiyuan Formation is stronger than that of Shanxi Formation, but the activation energy of coal in Shanxi Formation is lower and it is easier to generate gas. The development of coal-bearing source rocks is controlled by sedimentary environment, paleoclimate and paleoplant factors. The coal of Taiyuan Formation is mainly formed in the coal-forming environment of lagoon peat swamp, and the coal of Shanxi Formation is mainly formed in the coal-forming environment of delta plain peat swamp. On this basis, a coal accumulation model suitable for the study area has been established. This study plays an important supporting role in the evaluation of oil and gas resource potential in the study area.
- Jizhong depression,
- Upper Paleozoic,
- coaly source rock,
- geochemical characteristics,
- hydrocarbon generation kinetics,
- coal accumulation mode,
- sedimentology,
- petroleum geology

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References(52)

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The Hydrocarbon Generation Characteristics of the Upper Paleozoic Coaly Bearing Source Rocks and Its Main Controlling Factors in the North of the Jizhong Depression

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