With the ceaseless injection of oil and the migration passage prolonging, the result is that migration force increases and oil comes into little hole near charging point.
随着油的不断注入，油相通道的延长，导致运移驱动力增加，这相应导致油进入近注入点的较小的孔隙。
2
When oil enters the hole of water-wet sandstone driven by pressure difference, oil migrates following a line of less resistance because of the migration force of oil is bigger than that of water.
油在压差驱动下注入亲水砂岩孔隙的过程中，油的运移阻力比水大，因而，油往往沿阻力较低的有限通道运移。
3
Hall coefficient depends on electronic concentration and the relative values of empty hole concentrations and their migration rate in the semiconductor.