页岩气含气量和页岩气地质评价综述

Geological Bulletin of China(2011)

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Abstract
页岩气为源岩区油气聚集,属于源岩滞留气,以游离和吸附状态为主存在。富有机质页岩含气量是页岩气资源评价和有利区优选的关键参数。页岩有机质含量和地层的压力、温度、湿度等因素影响页岩的含气量。含气量的确定方法主要有解吸和测井方法。开展页岩气地质评价,除含气量参数外,还要研究地层和构造特征、岩石和矿物成分、储层厚度和埋深、储集空间类型、储集物性、岩石力学参数、有机地球化学参数、区域现今应力场特征、流体压力、储层温度、流体饱和度、流体性质等其它参数。发展有效的系统集成方法,综合分析、评价页岩气资源潜力和预测有利区,目前也在不断探索之中。
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Key words
Evaluation parameters,Favorable area optimization,Geological evaluation,Preservation condition,Shale gas,Shale gas content
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