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.
齐家-古龙凹
是松辽盆地主油气源区，其中心线以西生排出的油气一部分存留在凹内，另一部分向西部斜坡运移。
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.
齐家-古龙凹是松辽盆地主油气源区，其中心线以西生排出的油气一部分存留在凹内，另一部分向西部斜坡运移。
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