Periodic pumping tests are now being used to characterize subsurface hydraulic parameters owing several advantages over conventional tests, for example, option of superposing periodic excitations on transients by the data processing in frequency domain. We derive an analytical model using a double-packer system isolate injection interval borehole penetrating either confined or unconfined anisot...

Hydraulic tomography has been developed as an alternative to traditional geostatistical methods to delineate heterogeneity patterns in parameters such as hydraulic conductivity (K) and specific storage (S(s)). During hydraulic tomography surveys, a large number of hydraulic head data are collected from a series of cross-hole tests in the subsurface. These head data are then used to interpret th...

A case history is presented pertaining to five pumping systems that operated satisfactorily until a new production requirement was imposed on the pumping systems. A new slurry product initially developed at lab scale was introduced into the production plant for an initial trial run. Problems began to surface immediately on three out of five batch process pumping systems when the slurry could no...

The research of saltwater upconing is crucial for the development and utilization island freshwater resources. In this paper, a laboratory physical experiment device was developed, recovery lenses were investigated using rainfall simulations single-well multi-well pumping tests with various intensities. results revealed that: (1) thickness lens increased continuously linearly during early stage...