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东海西湖凹陷西斜坡断层—岩性油气藏富集评价体系与勘探方向

周荔青 江东辉 周兴海 李昆 庄建建 刘闯

周荔青, 江东辉, 周兴海, 李昆, 庄建建, 刘闯. 东海西湖凹陷西斜坡断层—岩性油气藏富集评价体系与勘探方向[J]. 石油实验地质, 2022, 44(5): 747-754. doi: 10.11781/sysydz202205747
引用本文: 周荔青, 江东辉, 周兴海, 李昆, 庄建建, 刘闯. 东海西湖凹陷西斜坡断层—岩性油气藏富集评价体系与勘探方向[J]. 石油实验地质, 2022, 44(5): 747-754. doi: 10.11781/sysydz202205747
ZHOU Liqing, JIANG Donghui, ZHOU Xinghai, LI Kun, ZHUANG Jianjian, LIU Chuang. Evaluation system and exploration optimization for fault-lithologic reservoir on the western slope of Xihu Sag, East China Sea Shelf Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2022, 44(5): 747-754. doi: 10.11781/sysydz202205747
Citation: ZHOU Liqing, JIANG Donghui, ZHOU Xinghai, LI Kun, ZHUANG Jianjian, LIU Chuang. Evaluation system and exploration optimization for fault-lithologic reservoir on the western slope of Xihu Sag, East China Sea Shelf Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2022, 44(5): 747-754. doi: 10.11781/sysydz202205747

东海西湖凹陷西斜坡断层—岩性油气藏富集评价体系与勘探方向

doi: 10.11781/sysydz202205747
基金项目: 

中石化先导项目“海域资源综合评价与海域高效部署方法研究” YTBXD-01-SH16-2020

详细信息
    作者简介:

    周荔青(1964-), 男, 博士, 教授级高级工程师, 从事油气勘探综合研究工作。E-mail: zhoulq.shhy@sinopec.com

  • 中图分类号: TE122.35

Evaluation system and exploration optimization for fault-lithologic reservoir on the western slope of Xihu Sag, East China Sea Shelf Basin

  • 摘要: 近年来,东海陆架盆地西湖凹陷西斜坡随着勘探程度的不断提高,勘探思路逐步由构造油气藏转向构造—岩性复合油气藏。通过系统地开展煤系烃源岩生烃潜力评价,明确煤层及暗色泥岩是斜坡带主力烃源岩。通过“源—渠—汇”系统的沉积体系精细研究,明确了西斜坡共发育8种构造—岩性复合圈闭类型;通过油气成藏条件及油气分布规律研究,弄清了始新统平湖组中—上段圈闭有效性是油气成藏主控因素,平湖组下段供烃能力及储层物性为主控因素,并建立了西斜坡油气藏综合评价体系。研究认为,西湖凹陷西斜坡北段迎翠轩地区始新统—古新统三角洲和平南、初阳—宝石地区始新统潮坪—三角洲及平湖斜坡内带为构造—岩性规模储量发育区,是下步有利的勘探方向。

     

  • 图  1  东海西湖凹陷构造区划及地层发育特征

    据文献[1]修改。

    Figure  1.  Structural division and stratigraphic characteristics of Xihu Sag, East China Sea

    图  2  东海西湖凹陷西斜坡始新统平湖组中—上段沉积相

    Figure  2.  Sedimentary facies of the middle and upper members of Eocene Pinghu Formation on the western slope of Xihu Sag, East China Sea

    图  3  东海西湖凹陷西斜坡构造—岩性复合圈闭模式

    Figure  3.  Model of structural-lithological composite traps on the western slope of Xihu Sag, East China Sea

    图  4  东海西湖凹陷西斜坡武云亭地区平湖组中—上段、平下段成藏模式

    Figure  4.  Hydrocarbon accumulation model of lower, middle and upper members of Pinghu Formation, Wuyunting area, western slope of Xihu Sag, East China Sea

    图  5  东海西湖凹陷西斜坡团结亭地区沉积相模式(a)和油气藏剖面图(b)

    Figure  5.  Sedimentary facies model (a) and reservoir profile (b) of Tuanjieting area, western slope of Xihu Sag, East China Sea

    图  6  东海西湖凹陷西部斜坡带平湖组中—上段砂体有效通道空间系数(a)和油气输导模式(b)

    Figure  6.  Effective channel space coefficients (a) and hydrocarbon transportation model (b) of middle and upper members of Pinghu Formation, western slope of Xihu Sag, East China Sea

    图  7  东海西湖凹陷西斜坡油气富集评价体系

    Figure  7.  Evaluation system for oil and gas enrichment in western slope of Xihu Sag, East China Sea

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出版历程
  • 收稿日期:  2022-01-21
  • 修回日期:  2022-08-19
  • 刊出日期:  2022-09-28

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