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四川自贡地区五峰组—龙马溪组下段古地貌刻画及其油气意义

王同 张克银 熊亮 史洪亮 董晓霞 魏力民 温真桃 欧阳嘉穗 李斌 王浩宇

王同, 张克银, 熊亮, 史洪亮, 董晓霞, 魏力民, 温真桃, 欧阳嘉穗, 李斌, 王浩宇. 四川自贡地区五峰组—龙马溪组下段古地貌刻画及其油气意义[J]. 石油实验地质, 2018, 40(6): 764-770. doi: 10.11781/sysydz201806764
引用本文: 王同, 张克银, 熊亮, 史洪亮, 董晓霞, 魏力民, 温真桃, 欧阳嘉穗, 李斌, 王浩宇. 四川自贡地区五峰组—龙马溪组下段古地貌刻画及其油气意义[J]. 石油实验地质, 2018, 40(6): 764-770. doi: 10.11781/sysydz201806764
WANG Tong, ZHANG Keyin, XIONG Liang, SHI Hongliang, DONG Xiaoxia, WEI Limin, WEN Zhentao, OUYANG Jiasui, LI Bin, WANG Haoyu. Paleogeomorphology restoration of Wufeng Formation-Lower Member of Longmaxi Formation in Zigong area of Sichuan Province and its oil and gas significance[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(6): 764-770. doi: 10.11781/sysydz201806764
Citation: WANG Tong, ZHANG Keyin, XIONG Liang, SHI Hongliang, DONG Xiaoxia, WEI Limin, WEN Zhentao, OUYANG Jiasui, LI Bin, WANG Haoyu. Paleogeomorphology restoration of Wufeng Formation-Lower Member of Longmaxi Formation in Zigong area of Sichuan Province and its oil and gas significance[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2018, 40(6): 764-770. doi: 10.11781/sysydz201806764

四川自贡地区五峰组—龙马溪组下段古地貌刻画及其油气意义

doi: 10.11781/sysydz201806764
基金项目: 

中国石油化工股份有限公司非常规科技项目“川西南下古生界海相页岩气高产富集条件与有利区评价”(P15100)和四川省教育厅重点科研项目“深层页岩储集物性研究”(15ZA0047)联合资助。

详细信息
    作者简介:

    王同(1987-),男,博士,助理研究员,从事非常规油气地质研究。E-mail:mrmenzu@aliyun.com。

    通讯作者:

    魏力民(1970-),男,高级工程师,从事非常规油气地质研究。E-mail:478853590@qq.com。

  • 中图分类号: TE121.3

Paleogeomorphology restoration of Wufeng Formation-Lower Member of Longmaxi Formation in Zigong area of Sichuan Province and its oil and gas significance

  • 摘要: 四川盆地威远-自贡地区是页岩气重点产区之一。上奥陶统观音桥段的展布情况对于页岩气勘探具有重要指导意义。通过构造-沉积背景分析,结合自贡地区岩心、薄片、古生物、测井及沉积速率、碳氧同位素等资料,认为观音桥段为构造稳定期大幅海退背景下的介壳灰岩沉积。A205、A1井观音桥段的缺失反映古地貌高点暴露出海平面,未沉积观音桥段介壳灰岩,并剥蚀下伏五峰组页岩。据此,运用残余厚度法对五峰组观音桥段古地貌进行刻画,观音桥段及五峰组厚度在自贡地区由北西向南东均表现出厚-薄-厚的变化特征,认为自贡地区存在以A1井-A205井为核部的北东-南西向展布的自贡低隆。建立了五峰组-龙马溪组下段沉积期自贡低隆沉积演化模式,并揭示了对于龙马溪组高伽马段黑色页岩的沉积厚度的影响。五峰组-龙马溪组高伽马段厚度存在以自贡低隆区A1井-A205井为中心向四周增厚的趋势,自贡低隆区两侧的低洼区域为有利勘探区。

     

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出版历程
  • 收稿日期:  2018-07-10
  • 修回日期:  2018-09-03
  • 刊出日期:  2018-11-28

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