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页岩气评价指标与方法

Keywords: 页岩气,评价,测井,特征识别

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Abstract:

?目前全球范围的页岩气开发已经展开。页岩储层有其独特的属性,因此页岩气开发的第一步是了解页岩的特性,这需借助测井、岩心分析等手段对其进行评价,以便寻找有利的页岩气远景区。首先介绍页岩气远景区评价的一些主要指标,如页岩厚度、有机质丰度(toc)、含氢指数、干酪根类型、热成熟度(ro)、页岩矿物组分和渗透率等\.其次对页岩气储层评价的方法进行介绍,主要是测井法,归纳采用测井方式对岩性、裂缝等的识别和对岩石矿物成分、toc、渗透率等的确定,并阐述实时lwd技术在页岩气储层特征识别方面的应用。最后,对fortworth盆地barnett页岩的各项指标进行了分析,认为其成功的开发对我国页岩气资源的开发具有重要借鉴意义。

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