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三塘湖盆地石炭系火山岩喷发环境及储层特征研究

朱卡,李兰斌,梁浩,廖群安,夏晓燕

Journal of Oil and Gas Technology（2012）

Cited 5|Views9
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Abstract
陆上与水下喷发火山岩在岩性、结构构造、蚀变特征、产状、与下伏地层接触关系、孔隙和裂缝发育特点等方面有显著区别.三塘湖盆地石炭系发育卡拉岗组(C2k)和哈尔加乌组(C2h)共2套储层,通过对这两个组的火山岩地球化学特征、岩性特征、蚀变特征、岩相类型、结构构造等进行研究,认为C2k以陆上喷发为主,而C2h为水陆过渡的环境,但以水下喷发为主.结合其储集空间的发育情况,综合分析认为陆上喷发环境储集性能优于水下喷发环境.
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Key words
subaqueous volcanic rocks,Carboniferous,reservoir space,Sangtanghu Basin,subaerial volcanic rocks
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