Sanzhao sag, Gulong sag, Qijia sag and Heiyupao sag to be favorable area to find the accumulation of gas from sourcerock deep.

• 三肇凹陷、古龙凹陷、齐家凹陷和黑鱼泡凹陷是松辽盆地北部扶、杨油层寻找深层天然气的有利地区。