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四川盆地涪陵地区五峰组观音桥段成因分析及其对页岩气开发的意义

张柏桥 孟志勇 刘莉 李凯 刘超 舒志恒

张柏桥, 孟志勇, 刘莉, 李凯, 刘超, 舒志恒. 四川盆地涪陵地区五峰组观音桥段成因分析及其对页岩气开发的意义[J]. 石油实验地质, 2018, 40(1): 30-37. doi: 10.11781/sysydz201801030
引用本文: 张柏桥, 孟志勇, 刘莉, 李凯, 刘超, 舒志恒. 四川盆地涪陵地区五峰组观音桥段成因分析及其对页岩气开发的意义[J]. 石油实验地质, 2018, 40(1): 30-37. doi: 10.11781/sysydz201801030
ZHANG Boqiao, MENG Zhiyong, LIU Li, LI Kai, LIU Chao, SHU Zhiheng. Significance of shale gas genesis to the development of Guanyinqiao Member, Wufeng Formation, Fuling area, Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(1): 30-37. doi: 10.11781/sysydz201801030
Citation: ZHANG Boqiao, MENG Zhiyong, LIU Li, LI Kai, LIU Chao, SHU Zhiheng. Significance of shale gas genesis to the development of Guanyinqiao Member, Wufeng Formation, Fuling area, Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(1): 30-37. doi: 10.11781/sysydz201801030

四川盆地涪陵地区五峰组观音桥段成因分析及其对页岩气开发的意义

doi: 10.11781/sysydz201801030
基金项目: 国家科技重大专项(2016ZX05060)和中国石化科技项目(P17014-3)资助。
详细信息
    作者简介:

    张柏桥(1963-),男,硕士,教授级高级工程师,从事石油天然气勘探开发与管理工作。E-mail:zhangbq.jhyt@sinopec.com。

  • 中图分类号: TE122.1

Significance of shale gas genesis to the development of Guanyinqiao Member, Wufeng Formation, Fuling area, Sichuan Basin

  • 摘要: 四川盆地涪陵地区五峰组顶部普遍发育观音桥段地层,目前关于观音桥段地层的成因,存在2个主流观点,即浅水成因说和深水成因说。结合沉积速率、生态学等多因素分析,证实涪陵地区五峰组观音桥段为深水异地沉积,底流沉积作用是观音桥段地层发育的主要原因,同时过强的底流沉积作用也是导致部分地区观音桥段地层缺失的主要原因。此外,从沉积作用、工程工艺改造等角度出发探讨了观音桥段地层对于涪陵地区页岩气开发评价工作的影响。研究认为,观音桥段地层的平面展布特征反映了涪陵地区五峰-龙马溪组含气页岩段沉积时期底流作用的活跃程度、微古地貌及距离物源区远近3个地质要素在平面上的差异,这些差异对于五峰-龙马溪组含气页岩段及其上覆顶板龙二段地层的沉积有着重要的影响,因此观音桥段的发育特征可作为中国南方五峰-龙马溪组页岩气层勘探开发选区的一个重要评价指标;此外,观音桥段地层工程工艺改造难度较大,且位于主力气层段内部,在优选开发井水平段穿行层位时应给与充分考虑。

     

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出版历程
  • 收稿日期:  2017-10-13
  • 修回日期:  2017-12-04
  • 刊出日期:  2018-01-28

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