【摘要】 采用一种新的动态测试方法,TDR-张力计-数据采集器联用,动态测定沙柱中气-水二相条件下饱和度与毛细压力(S-p)关系曲线。对各组成仪器的工作原理,以及TDR和张力计的标定方法做了具体介绍,对实验装置的稳定性也进行了专门测试。结果表明,TDR-张力计-数据采集器联用装置可安全准确快速测量出气-水二相条件下饱和度与毛细压力关系的动态变化。更多还原

【Abstract】 A new reliable setup composed of TDR,tensiometer and datataker for measuring water saturation,capillary pressure,and collecting signals of saturation and pressure respectively,was used to obtain dynamically the S-p relationships of air-water two-phase sandy medium.The operation principle of each part of the setup was outlined.The calibration methods of TDR and T5 tensiometer were introduced,and the stability of this dynamic test method was also detected and analyzed.The results indicated that,the combination method is healthy,accurate and timesaving,and can successfully obtain the dynamic S-p relationships of air-water two-phase sandy medium.更多还原