Development and Application of a Percolation Velocity Monitoring Method in Multiphase Percolation Physical Experiments

Table 1

Common detection methods of seepage velocity.

Method	Advantage	Limitations/disadvantages
Electrical detection [4–6]	Widely applicable conditions	The mechanism of action is unclear, and the resolution is low
Electromagnetic detection [7, 8]	Quick and intuitive	There are too many influencing factors to quantitatively describe
Elastic wave method [9, 10]	Intuitive monitoring methods	Not significantly effective for small-scale detection
Tracer method [11]	Ability to monitor the leakage channel and determine the leakage speed	Radioactivity and contamination of tracers
Temperature change [11]	High testing accuracy, which can reflect changes in flow velocity	The respective velocity of multiphase flow cannot be reflected