Raoyang sag is a typical continental rifted sag richest in hydrocarbons in Jizhong depression and has good geological conditions for forming lithologic-stratigraphic reservoirs.

• 摘要饶阳凹陷是冀中坳陷油气最富集的典型陆相断陷凹陷，具备形成岩性地层油藏的良好地质条件。