Kongdian formation of Dongying Huimin Sag in Jiyang depression is a deep formation with some hardness for petroleum exploration. 济阳坳陷东营惠民凹陷孔店组基本为深层勘探程度较低的层系。
Occurrences of organic matter in Paleogene argillaceous rock of Jiyang depression are primarily studied by means of fluorescent microscopy. 应用荧光显微镜法,首次对济阳坳陷下第三系泥质岩中有机质的赋存状态进行了研究。