四川东北部长兴-飞仙关组沉积相展布及储层发育
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Northeast Sichuan Changxing - Feixianguan sedimentary facies and reservoir development
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    摘要:

    四川盆地东北部长兴-飞仙关组是近年来我国发现的重要天然气储集层,已成为我国油气的重点勘探地区之一。通过对川东北长兴-飞仙关组地层沉积相特征的分析,探讨其储层发育的机制。研究发现,川东北地区长兴-飞仙关组主要发育有陆棚、缓坡、开阔台地、局限台地及台地边缘礁滩等沉积单元,台地边缘礁滩相为该区最有利的储层微相,礁、滩相发育有关的各种颗粒岩、泥粒岩或鲕粒岩,经白云石化和选择性埋藏溶解作用形成的各种次生孔、洞、缝的储渗体,它们被周围致密岩体的包围、封堵及上覆含泥质、膏质岩层封盖而形成圈闭。

    Abstract:

    Xing Northeastern Sichuan Basin - Feixianguan is found in China in recent years, an important gas reservoir, has become the focus of China's oil and gas exploration areas. Through the northeastern Sichuan Changxing - Feixianguan sedimentary facies analysis, reservoir development to explore its mechanism. The study found that in the northeastern Sichuan Changxing - Feixianguan mainly developed with shelf, slope, open platform, restricted platform and platform margin depositional units such reef, platform margin reef area with the most favorable reservoir facies, reef, shoal development on a variety of rock particles, soil particles or rock oolite, buried by selective dolomitization and dissolution to form a variety of secondary holes, holes, seam seepage reservoir body, they are surrounded by dense rock body surrounded by block and overlying argillaceous, cream quality rock blocks formed traps.

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刘文波. 四川东北部长兴-飞仙关组沉积相展布及储层发育[J]. 科学技术与工程, 2011, (28): .
liuwenbo. Northeast Sichuan Changxing - Feixianguan sedimentary facies and reservoir development[J]. Science Technology and Engineering,2011,(28).

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  • 收稿日期:2011-06-21
  • 最后修改日期:2011-06-23
  • 录用日期:2011-07-04
  • 在线发布日期: 2011-08-24
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