As a result of the mothballing of the salt-gypsum rock, two independent hydrocarbon-bearing systems developed in the Kongdian formation and member 4 of Shahejie formation.
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- 由于膏盐岩的封隔作用,孔店组及沙四段形成了两个独立的含油气系统,这为东营凹陷深层油气勘探指明了方向。