从而在该坳陷的惠氏凹陷发育了早断早衰型下部油气藏成藏组合，在东营凹陷发育了继承型中部油气藏成藏组合，在沾化凹陷和车镇凹陷等发育了晚断晚衰型上部油气藏成藏组合。

• Owing to its Cenozoic tectonic migration from west to east and from south to west, it developed three types of play, one is the lower early break-early decline play in the Huimin sag, the second is the middle inheritable play in the Dongying sag, the third is the upper late break-late decline play in the Zhanhua and Chezhen sags.