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e er duo si pen di xun yi di qu chang 8 chu ceng te zheng ji kong zhi yin su fen xi
Author(s): 
Pages: 49-52
Year: Issue:  2
Journal: Petroleum Geology and Engineering

Keyword:  鄂尔多斯盆地旬邑地区孔隙结构类型储层特征控制因素;
Abstract: 利用铸体薄片、扫描电镜、岩心、压汞及测井等资料,对旬邑地区长8储层综合研究表明,该地区岩石类型主要是岩屑长石砂岩和长石岩屑砂岩,孔隙类型以粒间孔、溶蚀孔隙为主,孔隙结构压力参数与物性具有较好的相关性,长8储层属于低孔超低渗储层.长8储层由于受沉积、成岩及构造作用的共同影响,水下分流河道和河口坝储层物性最好,远砂坝次之;压实和胶结作用会使储层致密化,损失部分孔隙,但溶蚀作用改善了孔喉的储渗能力、使储层物性得以改善,后期构造改造作用使储层岩石破碎形成裂缝,进一步改善了储层孔渗条件.
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