地学前缘 ›› 2026, Vol. 33 ›› Issue (5): 423-434.DOI: 10.13745/j.esf.sf.2024.6.35

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焉耆盆地四十里城地区八道湾组全油气系统成藏特征与模式

王国臻1(), 唐勇2, 潘春年3, 皮定成3, 唐贵3, 张佳3   

  1. 1 中国石油新疆油田公司勘探开发研究院, 新疆 克拉玛依 834000
    2 怀柔实验室新疆研究院, 新疆 乌鲁木齐 830000
    3 克拉玛依纳宇通达石油技术有限公司, 新疆 克拉玛依 834000
  • 收稿日期:2024-04-26 修回日期:2024-06-02 出版日期:2026-09-25 发布日期:2026-07-07
  • 作者简介:王国臻(1992—),男,博士,主要从事非常规油气形成与分布研究。E-mail: wgz_2017@foxmail.com
  • 基金资助:
    新型油气勘探开发国家科技重大专项“准噶尔盆地全油气系统与新领域勘探技术(2025ZD1400300)”

The characteristics and reservoir formation models of the whole petroleum system of the Badaowan Formation in the Sishilicheng blocks of the Yanqi Basin

WANG Guozhen1(), TANG Yong2, PAN Chunnian3, PI Dingcheng3, TANG Gui3, ZHANG Jia3   

  1. 1 Exploration and Development Research Institute, PetroChina Xinjiang Oilfield Company, Karamay 834000, China
    2 Xinjiang Research Institute of the Huairou Laboratory, ürümqi 830000, China
    3 Karamay Nayutongda Petroleum Technology Co., Ltd., Karamay 834000, China
  • Received:2024-04-26 Revised:2024-06-02 Online:2026-09-25 Published:2026-07-07

摘要:

全油气系统理论能够解释常规-非常规资源有序共生机理。焉耆盆地四十里城地区八道湾组包含了页岩油、致密油与常规油3种类型资源,具备全油气系统特征。基于全油气系统理论,对区内八道湾组常规-非常规资源开展了成藏静态要素匹配与成藏动态要素演化分析,明确了各类型资源成藏特征,建立了全油气系统成藏模式。研究表明:研究区八道湾组构造油藏、致密油藏、页岩油藏序列共生,各类型油气成藏特征差异明显;研究区八道湾组全油气系统成藏条件良好,烃源岩供应了充足的油气、多类型储集层提供了有利储集空间、区域盖层封闭性能较强、地层产状与断层控制了油气运移与圈闭、常规-非常规资源成藏要素具有时间匹配性;在研究区低部位凹陷区,非常规油藏具有滞留成藏、源储紧邻、超压驱动特征;而在斜坡带高部位西北缘,常规油藏具有源储分离、长距离运移、浮力驱动特征。

关键词: 焉耆盆地, 四十里城, 八道湾组, 全油气系统, 地质特征, 成藏模式

Abstract:

The theory of the whole petroleum system (WPS) can explain the orderly coexistence mechanism of conventional and unconventional resources. The Badaowan Formation in the Sishilicheng area of the Yanqi Basin contains three types of resources: shale oil, tight oil, and conventional oil, exhibiting characteristics of a whole petroleum system. Based on the theory of the whole petroleum system, a static element matching analysis and a dynamic element evolution analysis of reservoir formation were conducted for the conventional and unconventional resources in the Badaowan Formation within the area. This analysis clarified the reservoir formation characteristics of each type of resource and established a reservoir formation model for the whole petroleum system. The research indicates that in the study area, the Badaowan Formation features a sequential coexistence of structural oil reservoirs, tight oil reservoirs, and shale oil reservoirs, with significant differences in the reservoir formation characteristics of various types of oil and gas. The whole petroleum system in the Badaowan Formation of the study area has favorable reservoir formation conditions, with source rocks supplying sufficient oil and gas, multiple types of reservoirs providing favorable storage space, strong sealing performance of regional cap rocks, stratigraphic occurrence and faults controlling oil and gas migration and entrapment, and time matching of reservoir formation elements for conventional and unconventional resources. In the low-lying sag area of the study area, unconventional oil reservoirs exhibit characteristics of retention and accumulation, close proximity of source and reservoir, and overpressure driving. In the high-lying northwest edge of the slope zone, conventional oil reservoirs exhibit characteristics of source-reservoir separation, long-distance migration, and buoyancy driving.

Key words: Yanqi Basin, Sishilicheng, Badaowan Formation, whole petroleum system, geological characteristics, reservoir formation model

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