This paper studied imbibition law and influencing factor of low permeability sandstone under normal temperature and pressure and pulse pressure through self made experiment apparatus. 文中采用自行研制的实验装置,通过大量的室内实验研究了低渗透砂岩常温常压以及脉冲压力条件下的渗吸规律及其影响因素。
Imbibition capillary pressure curve 自吸毛细管压力曲线
A simplified imbibition experiment is designed according to the continuity property of porous media. Using the test data by this method can calculate relative permeability of water and capillary pressure. 根据多孔介质的连续性特征,建立了简化的渗吸实验方法,根据该方法所获得的实验数据可以计算水的相对渗透率和毛细管压力。
Drainage-imbibition cycles of wettability, capillary pressure and relative permeability of oil reservoir rock 油藏岩石的润湿性毛管力和相对渗透率驱替-吸吮循环分析
And with the increase in imbibition time, confining pressure and the expansion of clay minerals, the decrease rate of gas permeability is aggravated. 随着逆流自吸时间延长、围压增加和黏土矿物膨胀,逆流自吸导致气相渗透率下降的程度加剧;