摘要
鄂尔多斯盆地长63与长73储层发育,岩石以长石岩屑砂岩为主,其次为岩屑长石砂岩,以低孔低渗储层为主。现今孔隙发育特征呈现出分段式,发育次生孔隙。此外,从长63与长73孔隙演化的结果表明,长63与长73储层呈现出四个阶段的演化特征,分别为机械岩石胶结、溶蚀、减孔及剥蚀抬升后的增孔方式,与构造演化的特征具有匹配关系。
In Erdos basin,the sub-member Chang63and Chang 73reservoirs develop in the researc1h area.The lithology of the formations are feldspar lithic sandstone with low porosity and permeability.And the current porosity distribution displays with secondary porosity.In addition,the porosity evolution results indicate that four stages distribute in geological period,mechanical compaction,corrosion,reduced porosity and little increasing porosity,which is correlated with the structural evolution.
出处
《内蒙古石油化工》
CAS
2013年第21期138-141,共4页
Inner Mongolia Petrochemical Industry
关键词
储层特征
孔隙演化
致密油
长63与长73
Reservoir Characterizations
Porosity Evolution
Tight Reservoir
Chang 63and Chang 73 sub-member
