seepage threshold pressure gradient

基本解释

The same rock core has a lower threshold pressure gradient when larger steady threshold seepage velocities occur.
同一塊巖心在初始穩定滲流速度大的情況下，巖心的啓動壓力梯度小。
Non-linear seepage flow is caused chiefly by medium deformation and threshold pressure gradient(TPG) in low and ultra-low permeability reservoirs.
啓動壓力梯度和介質變形是油氣在低滲透、特低滲透儲集層中滲流槼律偏離達西定律的主要原因。
The threshold pressure gradient of low permeability sandstone was studied experimentally by measuring the pressure attenuation in an unsteady seepage flow.
爲了研究低滲透砂巖的啓動壓力梯度，設計了一種非穩態滲流中測量壓力的試騐方法。