Hydrocarbon generation-retention-expulsion processes and quantitative evaluation of medium-shallow source rocks in northern Songliao Basin

doi:10.7623/syxb202610006

Acta Petrolei Sinica ›› 2026, Vol. 47 ›› Issue (10): 2001-2017,2101.DOI: 10.7623/syxb202610006

• PETROLEUM EXPLORATION • Previous Articles

Hydrocarbon generation-retention-expulsion processes and quantitative evaluation of medium-shallow source rocks in northern Songliao Basin

Zhou Nengwu^1,2, Yang Kerou^1,2, Li Junhui³, Chen Fangjü³, Zheng Qiang³, Chen Guohui^1,2, Zhang Pengfei^1,2, Yan Guowei^1,2, Song Bo⁴, Gao Weizheng^1,2, Bai Guoshuai^1,2, Jiang Xinyu⁴, Chu Zhong^1,2, Li Wenbiao^1,2, Wang Min⁴, Lu Shuangfang^1,2

1. Sanya Offshore Oil & Gas Research Institute, Northeast Petroleum University, Hainan Sanya 572025, China;
2. State Key Laboratory of Continential Shale Oil, Northeast Petroleum University, Heilongjiang Daqing 163318, China;
3. Exploration and Development Research Institute, Daqing Oilfield Limited Company, Heilongjiang Daqing 163712, China;
4. School of Geosciences, China University of Petroleum, Shandong Qingdao 266580, China

Received:2026-01-21 Revised:2026-07-12 Published:2026-11-05

松辽盆地北部中—浅层烃源岩生烃—滞留烃—排烃过程及定量评价

周能武^1,2, 杨柯柔^1,2, 李军辉³, 陈方举³, 郑强³, 陈国辉^1,2, 张鹏飞^1,2, 晏国慰^1,2, 宋波⁴, 高伟政^1,2, 白国帅^1,2, 姜新雨⁴, 初众^1,2, 李文镖^1,2, 王民⁴, 卢双舫^1,2

1. 东北石油大学三亚海洋油气研究院海南三亚 572025;
2. 东北石油大学多资源协同陆相页岩油绿色开采全国重点实验室黑龙江大庆 163318;
3. 大庆油田有限责任公司勘探开发研究院黑龙江大庆 163712;
4. 中国石油大学(华东)地球科学与技术学院山东青岛 266580

通讯作者: 卢双舫，男，1962年6月生，1993年获中国石油勘探开发研究院博士学位，现为东北石油大学三亚海洋油气研究院教授，主要从事非常规油气地质学和油气地球化学方面的研究。Email：lushuangfang@nepu.edu.cn
作者简介:周能武，男，1993年10月生，2022年获中国石油大学（华东）博士学位，现为东北石油大学三亚海洋油气研究院副教授，主要从事非常规油气地质学的研究。Email：nengwuzhou@163.com
基金资助:
海南省自然科学基金项目（424MS083）和三亚市科技创新专项（2022KJCX51）资助。

Abstract

Abstract: To establish an integrated, quantitative framework for the hydrocarbon generation-retention-expulsion processes of middle-shallow source rocks, including the first, second, and third members of the Cretaceous Qingshankou Formation (Qing-1, Qing-2, and Qing-3 members, respectively) and the first Member of Nenjiang Formation (Nen-1 Member), in northern Songliao Basin, this study comprehensively analyzes well-log data more than 1 000 wells together with over 10 000 organic geochemical data points. Through comparison of the conventional ΔlogR method with deep learning and random forest algorithms, the optimal methods for estimating total organic carbon content, free hydrocarbon content, and pyrolyzed hydrocarbon content were determined. On this basis, the planar distributions of source-rock thickness and key organic geochemical parameters for the middle-shallow strata of northern Songliao Basin were systematically characterized. Furthermore, based on the analysis results from hydrocarbon-generation thermal simulation, conventional pyrolysis, and stepwise pyrolysis experiments, evaluation models were established for hydrocarbon generation potential, and the contents of total retained oil, adsorbed oil, and free oil in the source rocks, thereby characterizing the hydrocarbon generation-retention-expulsion processes and determining the associated hydrocarbon quantities. The results show that the total generated hydrocarbons in northern Songliao Basin are 131.580×10⁸t, to which the Qing-1, Qing-2+Qing-3, and Nen-1 members contribute 50.655×10⁸t, 64.043×10⁸t, and 16.882×10⁸t, respectively. The total retained hydrocarbons are 79.736×10⁸t, with the ratio of adsorbed oil to free oil of 7∶3. Specifically, the amounts of retained hydrocarbons in the Qing-1, Qing-2+Qing-3, and Nen-1 members are 26.795×10⁸t, 36.212×10⁸t, and 16.729×10⁸t, with ratios of adsorbed oil to free oil of 7∶3, 6∶4, and 19∶1, respectively. The total amount of expelled hydrocarbons is 52.734×10⁸t, of which the Qing-1 and Qing-2+Qing-3 members account for 24.750×10⁸t and 27.831×10⁸t, respectively, whereas the Nen-1 Member accounts for only 0.153×10⁸t.

Key words: hydrocarbon generation, hydrocarbon expulsion, hydrocarbon retention, Cretaceous Qingshankou Formation, Cretaceous Nenjiang Formation, northern Songliao Basin

摘要： 为了将松辽盆地北部中—浅层[白垩系青山口组一段（青一段）、青山口组二段（青二段）、青山口组三段（青三段）和嫩江组一段（嫩一段）]烃源岩的“生烃—滞留烃—排烃”过程作为一个有机整体进行紧密关联并开展定量分析，基于上千口井的测井数据及上万件有机地球化学数据点的综合分析，通过对比传统ΔlogR、深度学习和随机森林算法，优选了评估总有机碳含量、游离烃含量和热解烃含量的最佳方法，系统性地刻画了松辽盆地北部中—浅层烃源岩的厚度和关键有机地球化学参数的平面展布特征。进一步地，结合生烃热模拟、常规热解和分步热解等实验分析结果，建立了烃源岩生烃量、滞留油含量、吸附油含量、游离油含量评价模型，明确了烃源岩的生烃—滞留烃—排烃过程及其含量。研究结果表明：松辽盆地北部的总生烃量为1 315.80×10⁸t，其中，青一段、青二段—青三段和嫩一段的生烃量分别为506.55×10⁸t、640.43×10⁸t和168.82×10⁸t；总滞留烃量为797.36×10⁸t，吸附油含量与游离油含量的占比为7∶3，其中，青一段、青二段—青三段和嫩一段的滞留烃量分别为267.95×10⁸t、362.12×10⁸t和167.29×10⁸t，吸附油含量与游离油含量的占比分别为7∶3、6∶4和19∶1；总排烃量为518.44×10⁸t，其中，青一段、青二段—青三段排烃量分别为238.60×10⁸t和278.31×10⁸t，嫩一段的排烃量仅为1.53×10⁸t。

关键词: 生烃, 排烃, 滞留烃, 白垩系青山口组, 白垩系嫩江组, 松辽盆地北部

CLC Number:

T122.3

Zhou Nengwu, Yang Kerou, Li Junhui, Chen Fangjü, Zheng Qiang, Chen Guohui, Zhang Pengfei, Yan Guowei, Song Bo, Gao Weizheng, Bai Guoshuai, Jiang Xinyu, Chu Zhong, Li Wenbiao, Wang Min, Lu Shuangfang. Hydrocarbon generation-retention-expulsion processes and quantitative evaluation of medium-shallow source rocks in northern Songliao Basin[J]. Acta Petrolei Sinica, 2026, 47(10): 2001-2017,2101.

周能武, 杨柯柔, 李军辉, 陈方举, 郑强, 陈国辉, 张鹏飞, 晏国慰, 宋波, 高伟政, 白国帅, 姜新雨, 初众, 李文镖, 王民, 卢双舫. 松辽盆地北部中—浅层烃源岩生烃—滞留烃—排烃过程及定量评价[J]. 石油学报, 2026, 47(10): 2001-2017,2101.

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Hydrocarbon generation-retention-expulsion processes and quantitative evaluation of medium-shallow source rocks in northern Songliao Basin

松辽盆地北部中—浅层烃源岩生烃—滞留烃—排烃过程及定量评价

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