准噶尔盆地玛湖凹陷全油气系统源-储配置与油气聚集时空耦合

doi:10.7623/syxb202507003

石油学报 ›› 2025, Vol. 46 ›› Issue (7): 1260-1277.DOI: 10.7623/syxb202507003

• 地质勘探 • 上一篇

准噶尔盆地玛湖凹陷全油气系统源-储配置与油气聚集时空耦合

毛新军¹, 刘寅², 王国臻¹, 晏奇¹, 赵长永¹, 朱卡¹, 李梦瑶¹, 徐进军², 曹剑³

1. 中国石油新疆油田分公司勘探开发研究院新疆克拉玛依 834000;
2. 深层油气全国重点实验室(中国石油大学(华东)) 山东青岛 266580;
3. 南京大学地球科学与工程学院江苏南京 210023

收稿日期:2025-03-04 修回日期:2025-06-09 发布日期:2025-08-08
通讯作者: 曹剑,男,1978年10月生,2005年获南京大学博士学位,现为南京大学地球科学与工程学院教授,主要从事石油地质学与有机地球化学教学和研究工作。Email:jcao@nju.edu.cn
作者简介:毛新军,男,1973年4月生,2010年获中国石油大学(北京)硕士学位,现为中国石油新疆油田分公司副总经理、总地质师、教授级高级工程师,主要从事油气勘探研究及管理工作。Email:mxj7341@petrochina.com.cn
基金资助:
国家自然科学基金项目(No.42472192,No.42230808)、泰山学者青年专家项目(tsqn202312121)、新疆维吾尔自治区天山英才-科技创新领军人才支持项目(2022TSYCLJ0070)和中国石油天然气股份有限公司前瞻性基础性研究科技重大项目(2022DJ0108)资助。

Spatiotemporal coupling between source-reservoir configurations and hydrocarbon accumulation in the Whole Petroleum System of Mahu sag, Junggar Basin

Mao Xinjun¹, Liu Yin², Wang Guozhen¹, Yan Qi¹, Zhao Changyong¹, Zhu Ka¹, Li Mengyao¹, Xu Jinjun², Cao Jian³

1. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Xinjiang Karamay 834000, China;
2. State Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Shandong Qingdao 266580, China;
3. School of Earth Sciences and Engineering, Nanjing University, Jiangsu Nanjing 210023, China

Received:2025-03-04 Revised:2025-06-09 Published:2025-08-08

摘要/Abstract

摘要： 准噶尔盆地玛湖凹陷发育典型全油气系统,常规与非常规油气藏有序分布,对石油地质学理论发展具有重要研究意义。基于玛湖凹陷全油气系统成藏要素系统分析,总结了油气富集规律:碱湖烃源岩类型特殊全过程持续生烃、储层类型丰富全粒序发育、输导体系立体分布高效输导、油气藏类型丰富多样有序聚集等。源-储配置与时空耦合是形成全油气系统的核心要素。二叠纪末期以来,风城组烃源岩持续深埋并多期生/排烃,为油气成藏提供了充足的资源基础;砂砾岩至白云质粉砂岩、泥页岩的全粒序储层发育控制了常规—非常规油气藏的规律分布。玛湖凹陷全油气系统具有连续-有序充注特征,表现为远源常规油气藏早期成藏、源内非常规页岩油气藏晚期成藏的时序特征。研究揭示了全油气系统全过程成藏机制,明确了源内非常规油气是深层勘探的重要领域,对完善全油气系统理论及指导勘探实践具有重要价值。

关键词: 全油气系统, 源-储耦合, 风城组, 玛湖凹陷, 准噶尔盆地

Abstract: Mahu sag in Junggar Basin develops a typical Whole Petroleum System (WPS), which exhibits the ordered distribution of conventional and unconventional hydrocarbon reservoirs. This has important implications for advancing the development of petroleum geology theories. Through systematic analysis of the petroleum accumulation elements in WPS, the paper summarizes the hydrocarbon enrichment patterns in the study area. Specifically, the WPS of Mahu sag is characterized by distinctive alkaline lacustrine source rocks with sustained hydrocarbon generation throughout the thermal evolution, diverse reservoir types developed across all grain-size sequence (from sandy conglomerates to dolomitic siltstones and argillaceous mudstones), three-dimensional distribution of hydrocarbon transport system enabling efficient oil and gas migration, and a diverse range of orderly accumulated hydrocarbon reservoirs. The source-reservoir configuration, along with their spatiotemporal coupling with hydrocarbon accumulation, forms the core of WPS. Since the end of the Permian period, the Fengcheng Formation source rocks have undergone continuous burial and multi-phase hydrocarbon generation and expulsion, thereby providing a sustained resource basis for hydrocarbon accumulation; the development of sandy conglomerate, dolomitic siltstone and argillaceous shale reservoirs across all grain-size sequence controls the ordered distribution of both conventional and unconventional hydrocarbon reservoirs. The WPS of Mahu sag undergoes sustained and temporally sequenced hydrocarbon charging, demonstrated by early-stage accumulation in conventional far-source reservoirs while later-stage accumulation in unconventional intra-source shale oil and gas reservoirs. The study reveals the whole-process accumulation mechanism of WPS and highlights unconventional intra-source resources as a key frontier for deep exploration. These findings are valuable for refining WPS theory and guiding future exploration practice.

Key words: Whole Petroleum System, source-reservoir coupling, Fengcheng Formation, Mahu sag, Junggar Basin

中图分类号:

TE122.3

毛新军, 刘寅, 王国臻, 晏奇, 赵长永, 朱卡, 李梦瑶, 徐进军, 曹剑. 准噶尔盆地玛湖凹陷全油气系统源-储配置与油气聚集时空耦合[J]. 石油学报, 2025, 46(7): 1260-1277.

Mao Xinjun, Liu Yin, Wang Guozhen, Yan Qi, Zhao Changyong, Zhu Ka, Li Mengyao, Xu Jinjun, Cao Jian. Spatiotemporal coupling between source-reservoir configurations and hydrocarbon accumulation in the Whole Petroleum System of Mahu sag, Junggar Basin[J]. Acta Petrolei Sinica, 2025, 46(7): 1260-1277.

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准噶尔盆地玛湖凹陷全油气系统源-储配置与油气聚集时空耦合

Spatiotemporal coupling between source-reservoir configurations and hydrocarbon accumulation in the Whole Petroleum System of Mahu sag, Junggar Basin

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