Abstract: Located in the northeast of Lixian slope of Raoyang sag in Bohaiwan basin,controlled by regional tectonic setting, the reservoirs thickness Member 1 of Shahejie Formation at Well Xiliu 10 area is relatively small,and the distribution range is limited and attenuated towards the onlap of the slope.Together with the complicated fault system,the oil and gas exploration and production become difficult.Studies show that the area is liable to trap hydrocarbon for the adja- cency to source rock,the adequate supply and the high structural position,and the area is also favorable in sedimen- tary facies and superior reservoir.Meanwhile,the area has excellent trap condition and source-reservoir-caprock as- semblage,so the pool styles are plentiful with the structure -lithologic reservoir,fault-nose reservoir,lithologic res- ervoir and stratigraphie reservoir.