在较高流速下，随速度升高，沥青所造成的孔喉堵塞更加严重，在低渗岩心中沥青堵塞引起渗透率伤害程度大于高渗透岩心。
At high speed, asphaltene plugging is more serious with increase of flow rate. The damage degree of asphaltene plugging is higher in low permeability core than in high one.
同时系统研究了油水界面张力大小、表面活性剂段塞大小、注入速度以及注入时机对低渗岩心降压增注和提高采收率的影响规律和特征。
Also, the IFT of water and oil, surfactant slug size, injection rate and injection opportunity on reducing injecting pressure and improving EOR efficiency are investigated.
在介绍了一种新的渗吸设备的基础上，利用其研究了低渗透岩心反向渗吸规律。
This paper introduces a new kind of imbibition equipment, and by use of it we studied the reverse imbibition law of low permeable core.
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