浙西北页岩气勘探有利层系初探

Journal of Oil and Gas Technology(2012)

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Abstract
由于浙江省常规油气地质条件不甚理想,页岩气等非常规资源勘探势在必行。在浙西北野外地质观测的基础上,对页岩样品进行了有机地化特征、岩矿特征、页岩气储集特征和含气性特征等测试,得到评价页岩气成藏的关键参数。有机地化测试表明下寒武统荷塘组(∈1h)和上二叠统龙谭组(P2l)有机碳含量高,演化成熟度均为成熟-过成熟状态,具有页岩气勘探的基础;岩石物性和岩矿组成表明荷塘组和P2l具有页岩气储集条件;页岩等温吸附实验数据则显示荷塘组和P2l具有较高的含气性。综合分析认为浙西北地区页岩气勘探的有利层系为下寒武统荷塘组和上二叠统P2l。
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Key words
reservoir formation condition,Northwestern Zhejiang Province,favorable stratum,shale gas
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