特种油气藏 ›› 2026, Vol. 33 ›› Issue (1): 33-42.DOI: 10.3969/j.issn.1006-6535.2026.01.004

• 地质勘探 • 上一篇    下一篇

基于沉积正演模拟探讨车莫古隆起对石西地区西山窑组沉积体系的影响

付磊1, 谢磊1, 李俊飞1, 张春光1, 韩子建1, 汪学华1, 张建国1, 王润超2   

  1. 1.中国石油新疆油田分公司石西油田作业区,新疆 克拉玛依 834000;
    2.重庆科技大学复杂油气田勘探开发重庆市重点实验室,重庆 401331
  • 收稿日期:2025-01-14 修回日期:2025-11-19 出版日期:2026-02-25 发布日期:2026-06-22
  • 通讯作者: 谢磊(1992—),男,高级工程师,2014年毕业于中国石油大学(华东)资源勘查工程专业,现从事油气田开发方面的研究工作。
  • 作者简介:付磊(1985—),男,高级工程师,2009年毕业于中国地质大学(武汉)资源勘查专业,现从事油气田开发方面的研究工作。
  • 基金资助:
    重庆市自然科学基金面上项目“三角洲体系物源供给的侧向差异对层序构成样式的控制”(cstc2019jcyj-msxmX0719)

Effect of the Chepaizi-Mosuowan Paleo-Uplift on the depositional system of the Xishanyao Formation in Shixi Area based on depositional forward modeling

FU Lei1, XIE Lei1, LI Junfei1, ZHANG Chunguang1, HAN Zijian1, WANG Xuehua1, ZHANG Jianguo1, WANG Runchao2   

  1. 1. Shixi Oilfield Operation Area, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
    2. Chongqing Key Laboratory of Complex Oil and Gas Field Exploration and Development, Chongqing University of Science and Technology, Chongqing 401331, China
  • Received:2025-01-14 Revised:2025-11-19 Online:2026-02-25 Published:2026-06-22

摘要: 准噶尔盆地陆梁隆起南部石西地区西山窑组(J2x)具有良好的油气勘探前景,但该区构造-沉积体系研究仍较为薄弱,为此,基于测井、地震、岩心等资料,结合Dionisos正演模拟对车莫古隆起及周缘沉积展布进行刻画。结果表明:J2x沉积时期,车莫古隆起为低幅宽缓北东—南西走向的背斜构造,在J2x2、J2x3和J2x4沉积时期快速隆升,导致地层超覆和沉积缺失;J2x正北和北东双物源控制的沉积体系在J2x3和J2x4发生接触并逐步融合成一个三角洲沉积体系,发育水下分流河道、分流间湾、河口坝等多种微相;车莫古隆起隆升速率变化控制沉积空间与物源供给耦合关系,以此影响沉积展布,其供源形成的粗粒扇体沉积可作为有利砂体。研究结果对石西地区J2x沉积体系研究提供了一定的借鉴。

关键词: 沉积正演模拟, 沉积演化, 车莫古隆起, 西山窑组, 准噶尔盆地

Abstract: In the southern part of the Luliang Uplift Shixi Area of the Junggar Basin,the Xishanyao Formation(J2x)offers favorable oil and gas prospects,but studies on its tectono-sedimentary system have been relatively limited.Thus, based on well logs,seismic data,core samples,employing Dionisos forward modeling and the sediment distribution related to the Chepaizi-Mosuowan Paleo-Uplift and its margins were characterized.The results showed that during J2x deposition,the Chepaizi-Mosuowan Paleo-Uplift was a low-amplitude NE-SW trending anticline that underwent rapid uplift during the J2x2,J2x3 and J2x4 stages,producing stratigraphic overlap and deposition missing.A dual provenance sedimentary system from the north and northeast gradually interfingered and merged into a single deltaic deposition system in the J2x3 and J2x4,developing various sub-facies such as underwater distributary channels,inter-distributary bays and mouth bars.Variations in the uplift rate of the Chepaizi-Mosuowan Paleo-Uplift controlled the coupling between accommodation space and sediment supply,thereby influencing sediment distribution;the coarse-grained fan deposits derived from this source constituted favorable reservoir sand body.This study provides valuable guidance for research on the J2x sedimentary system in the Shixi Area.

Key words: depositional forward modeling, sedimentary evolution, Chepaizi-Mosuowan Paleo-Uplift, Xishanyao Formation, Junggar Basin

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