Layne has over 50 years of combined experience in the development and application of models for horizontal and radial collector wells.
Groundwater flow patterns in the vicinity of a horizontal well, a Ranney® Collector Well, or an angle well are very complex.
Hence, evaluating the performance of these wells cannot be done with the classic functions normally used. Special tools are needed to account for the complex boundary conditions and flow towards these wells. Therefore, Layne has developed exclusive techniques to evaluate aquifer properties when these types of wells are being considered. Our methods are used to determine aquifer properties, source water distribution, and approach velocities near the well screen. Our custom tools allow us to consider all possible arrangements of wells (vertical, slant, or horizontal) to identify the best solution to any source water development.

Our technique accounts for:
  • Transient flow in the well
  • Transient boundary conditions
  • Variable aquifer properties and geometry
  • Hydraulic resistance from the sediment at the bottom of the surface water
  • Regional flow conditions

Applications include:

  • Desalination intakes in coastal settings
  • Bank filtration wells near rivers
  • Special "tripod" well designs to reduce header pipe cost