Invention of partitioning well pipe to analysis three-dimensional hydrogeological parameters with horizontal and vertical

In recent years, monitoring the water level release at different depths by set up the packer in well pipe. That can successfully estimate the flow coefficient (T) and water storage coefficient (S) of the three-dimensional (3d) underground aquifer. However, its necessary to install multiple Packers in a single well, which to measure the drawdowns repeatedly. In the interest of obtaining anisotropic hydrogeological parameter and layered drawdowns data that must establish multiple observation wells. That will spend plenty of labor hours and well construction costs. Therefore, the purpose in this study is designed a multi-stage concentric well pipe. It can directly measure the water level changes at different depths at the same time in a single well pipe. Then, performing the vertical flow analysis based on the water drawdowns data at different layers. Finally, the vertical hydrogeological parameters of the aquifer can be obtained, and the horizontal and vertical distribution patterns of T and S can be analyzed at the same time. In order to verify the feasibility of this new pipe. The first step is construct a 3D aquifer to do a pumping test. Then, we estimated the 3D hydraulic properties distribution of the aquifer by hydraulic tomography (HT). Lastly, using numerical models to validate the estimated 3D distribution fields of the hydrogeological parameter. The realistic hydraulic properties of the entire groundwater aquifer can be estimated more comprehensively with this concept. This will make a great contribution to the future analysis of changes in regional flow fields, groundwater replenishment patterns, and control of the diffusion of underground pollution.