In this paper, the general laws of water flow of deep well pumping in phreatic water aquifers in loess area was obtained by means of arranging and analyzing the in-situ pumping test data of single well and double wells. At the same time the variation laws of the hydraulic jump was analyzed.
Under the same hydrologic-geologic condition,the phreatic parameters of well pumping is little higher than that of well artificial replenishment,but the method used for pumping water process can be used to get approximatively the phreatic parameters of artificial replenishing process.
Three dimensional program with computer language C~(++) was made in this paper. The rule in the change of groundwater table with time was analyzed on single well pumping and double wells pumping. The error between calculated results and tested results was small.
Saltwater Upconing and Decay Beneath a Well Pumping Above an Interface Zone
Analysis of radial movement of an unconfined leaky aquifer due to well pumping and injection
Analysis of radial movement of a confined aquifer due to well pumping and injection
Although arsenic contamination is caused by oxidation of naturally occurring sulfides, it is influenced by water-level fluctuations caused by municipal well pumping or climate changes, which can shift geographic areas in which contamination occurs.
We considered well placement and well pumping rates to be decision variables.
Based on the theoretical analysis, a geothermal down-well pumping system cycle with R-113 as working fluid is suggested and its thermodynamic effects on the cycle system is treated.Analytical results show that the Pumping cycle system can be effectively applied at temperature about 160℃, i. e the lower temperature geothermal water well.
In this paper, the compositions, working principles and its advantages and shortcomings of automatic control system for a single-well pumping installation are presented.
After a compensating condenser is installed on the motor of a well pumping unit, the amplitude value of electric current ban be lowered effectively, the terminal voltage can be raised, the power loss can be decreased and thus the power factor will be improved.