By assuming the existence of mercury-ejection threshold pressure and mercury-ejection ending for extreme low-permeable rock, a necessary correction for mercury-ejection volume was made.
在考虑退汞麻痹效应和特低渗透率岩样退汞中止点假定条件下，对退汞量作了必要的修正。
This paper performs an acoustic parameters testing of 20 pieces of low porous and permeable rock sample of Well Fangshen 8 in Daqing Oil Field under the condition of fully saturated water and gas.
对大庆油田芳深8井20块低孔、低渗岩样，在完全饱和水和气的条件下进行声学参数测试。
The reservoir sandstone is typical low porous and low permeable reservoir rock.
该储层砂岩是典型的低孔、低渗储集岩。
For naturally fractured low permeable limestone reservoirs, the oil displacing function by spontaneous imbibition of water is weak when the matrix rock surfaces are mixed wet or oil wetted.
裂缝发育的低渗灰岩储层，当基质岩块为混湿及油湿时，毛细渗吸驱油作用很弱。
Sandstones, which are porous and permeable, can provide the reaction space for fluid flow and rock interaction.
砂岩因其发育孔隙为流体的流动和流体与岩石的相互作用提供了场所。
And there must be a permeable reservoir rock, such As sandstone or porous limestone, to provide pAssage and storage for the oil and gAs.
所以在附近就必须具有透水的储存岩石，如砂岩和具孔隙的石灰岩，为石油和天然气提供通道和贮存场所。
Based on the principle of energy accumulation of liquid diffusion, the permeable tensor mathematic expression of fractured rock mass is established.
利用流体扩散能量叠加原理，建立了裂隙岩体介质的渗透张量数学表达式。
Based on the principle of energy accumulation of liquid diffusion, the permeable tensor mathematic expression of fractured rock mass is established.
利用流体扩散能量叠加原理，建立了裂隙岩体介质的渗透张量数学表达式。
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