英旺油田长8砂岩储层物性特征研究
Fault-Block Oil and Gas Field(2014)
Abstract
通过铸体薄片、X线衍射、扫描电镜、常规压汞和室内敏感性实验等分析测试手段,对英旺油田长8砂岩储层的物性、微观孔隙结构及储层敏感性等特征进行详细研究.结果表明:该区长8砂岩储层属于低孔、超低渗储层,孔隙以粒间溶孔、剩余粒间孔和粒内溶孔为主,属小孔、微喉道类型,孔喉分选性一般,连通性差;长8储层敏感性以弱伤害程度为主,具有弱一无速敏、弱酸敏、弱碱敏、中等偏弱的盐敏和水敏等特点.该研究为英旺油田下一步的油气开采提供了理论依据.
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