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Analysis of hydrocarbon accumulation condition of Middle-Upper Proterozoic in Guozhangzi monoclinal zone,Jibei Depression
Pages: 423-425
Year: Issue:  4
Journal: Fault-Block Oil and Gas Field

Keyword:  中上元古界白云岩高角度裂缝成藏;
Abstract: 冀北坳陷发育巨厚的中上元古界地层.地表油苗丰富.发现多个古油藏,说明该区已有油气成藏过程.郭杖子单斜带发育洪水庄组灰黑色页岩和铁岭组黑色灰岩2套好的有效烃源岩,有机质质量分数0.5%~4.58%,镜质体反射率1.07%~1.10%.铁岭组中下部的高角度裂缝白云岩和雾迷山组上部晶白云岩和叠层石白云岩是该区主要储层,储集空间主要是裂缝和溶洞,并发育与这2套储层有关的2套生储组合:洪水庄组生-雾迷山组储...
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