东胜气田锦58井区盒1段储层特征及分类评价
Natural Gas Technology(2018)
Abstract
依据粒度分析、岩石薄片、铸体薄片、毛细管压力曲线等分析化验资料,结合东胜气田锦58井区盒1段沉积特征,对盒1段砂岩储层特征开展研究及分类评价.结果表明:盒1段储层砂岩岩性以粗、中粒岩屑砂岩和岩屑石英砂岩为主,属于低孔—特低孔、特低渗—超低渗型储层;储层孔隙以粒间溶孔和原生粒间孔为主,其次是粒内溶孔;储层以细孔隙、中小孔喉为主.根据沉积微相、岩性、物性、孔隙类型及毛细管压力曲线将砂岩储层分为3类,其中Ⅰ类和Ⅱ类为好、较好储层.
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