东濮凹陷西洼南部石油地质新论

A New Discussion on the Petroleum Geological Characteristic in the South of West Sag of Dongpu Depression

东濮凹陷西洼南部1000km2，过去认为生烃岩薄，埋深大，石油地质条件较差，根据对豫深1井等地质资料的再分析、地震资料重新处理和解释，提出了该地区深部存在着巨厚的沙三－沙四生烃岩系，又是沙一段沉积中心等新认识，认为西洼南部油气资源丰富，是东濮凹陷潜力最大的勘探接替地区。认为应予立体评价并指出了具体钻探目标。

The south of west sag in Dongpu Depression is about 1000 square kilometer,which covers the largest area and has the lowest exploration degree. Because the oil and gas source rocks are thin and deep, this region was considered as poor in petroleum geology conditions. Based on fresh analysis of the geological data from Well YS1 and reprocessing of the seismic data, the authors put forward to some new knowledge that the thickness of oil and gas source rocks of Es3-Es4 in the deep of the area is very very heavy, and this region is the sedimentary centre of Es1 formations also, therefor, the oil and gas resource is abundant，and It is the most potential exploration region in Dongpu Depression． Finally，the exploration targets are suggested in this paper．