It is pointed out that the effective migration passage, secondarymigration force and oil-gas filling degree are the most important basic theories to be studied at present.
结果表明，油气有效运移通道、二次运移动力和油气充满度应是当前基础理论研究的重点。
2
The height of vertical displacement controls the upward migration of oil and gas, and primary oil pools are formed in the lower part of the main faults and secondary pools in their upper part.
断层断开高度控制了油气运移的高度，在主断层下部形成原生油藏，上部形成次生油藏。
3
The coupling of seepage and stress fields is represented by the effect of stress field on seepage field during oil and gas secondarymigration.