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.

• 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。