Qijia-Gulong depression is master source area of oil and gas in Songliao Basin, a part of oil and gas from the source is held up in the depression, the other migrates to west clinoform zone.

摘要齐家-古龙凹是松辽盆地主要油气源区，其中心线以西生油气一部分存留在凹内，另一部分向西部斜。