鄂尔多斯盆地志丹探区延长组储层特征研究及评价
Northwestern Geology(2009)
Abstract
在大量岩心铸体薄片及物性等资料统计分析的基础上,对志丹探区延长组储层的沉积学、岩石学、物性等特征及孔隙类型和孔隙结构等进行了深入研究,并对储层进行了分类评价.研究结果表明,研究区延长组储集层具有成分成熟度低、结构成熟度高的特点;孔隙类型主要为粒间孔、溶蚀孔等类型,属于中孔、低渗型和中低孔、特低渗型储层.综合多参数评价,研究区延长组中长2和长6油层组分别发育Ⅱ类和Ⅲ类储层,个别地区发育Ⅰ类和Ⅳ类储层.
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Key words
Evaluation,Ordos basin,Physical property,Reservoirs,Yanchang formation,ZHidan
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