【摘要】 使用放射性示踪剂监控水在岩心中的运移,发现进口池中的水相活度越低,水的运移速率越小。而当进、出口池之间的水活度差较大时,观察到了水的体积流量。试验结果证实了页岩与水基流体之间存在着渗透现象,且页岩是一个非理想性的半透膜。更多还原

【Abstract】 A radioactive tracer tritium was used to investigate the transportation of water molecules through shales. It is found that reducing the water activity of the inlet reservoir would decrease the diffusion coefficiency of water molecules, and mass flow was observed when the activity of the inlet reservoir was much lower than that of the outlet reservoir. Therefore, osmotic phenomenon exists in the system of shale and water based fluid, but shale is a non-perfect semipermeable membrane.更多还原