Drawdown in a well of large diameter


  • Istavros S. Papadopulos,

  • Hilton H. Cooper Jr.


A solution for the drawdown in a large-diameter well discharging at a constant rate from a homogeneous isotropic artesian aquifer, which also takes into consideration the water derived from storage within the well, is presented. A set of type curves computed from this solution permits a determination of the transmissibility of the aquifer by analysis of drawdown observed in the pumped well.